A+ Dion Exam 1 Flashcards
Port # for HTTP
80
Port # for HTTPS
443
Port # for SMB/CIFS
445
Port # for TFTP
Port 69
When is a static IP address used
When the DHCP server is disabled
An APIPA address is also known as
Link Local Address
What USB connection can support data rates up to 480 Mbps
USB 2.0
What USB connection supports data rates up to 12 Mbps
USB 1.1 and draws 2.5W
USB 3.0 is also known as
SuperSpeed and supports data rates up to 5 Gbps and draws 4.5W
USB 3.1 is also known as
SuperSpeed+ and supports data rates up to 10 Gbps and draws 4.5W
Which cellular technology is comprised of HSPA+ and EV-DO
3G
What component causes double images or ghost image printing on laser printer
Drum unit
What should you do with a burn in on a plasma TV
Replace plasma TV
Security updates, patches and upgrades can reconfigure what during Windows security update
Network card drivers
How many pins can SATA connectors have
15 pin and 7 pin
How many pins can Thunderbolt connectors have
20 pin and 24 pin
How many pins can SCSI connector have
50 pin and 36 pin
What converter can convert analog signal to digital signal
VGA to DVI-D
What kind of network cable runs a TV signal between two buildings
Coaxial
What is an IPv6 address of ::1
Loopback address
What is an IPv4 address of 127.0.0.1
Loopback address
Hard disk drives are cheaper and come in far bigger sizes than SSDs. True or false
True
What type of connector is used widely with single mode fiber optic systems
SC connectors
What type of connector is used with coaxial cables
F type connector
What DC voltage is not found within laser printer when it converts AC power into DC power for use
-24 VDC
How do you get past the administrative password screen on a laptop if you don’t have the password
To clear CMOS, remove the CMOS battery, wait a few minutes, reinsert the battery, and then power on the laptop
What does a steady light indicate on a Network Interface Card
No network activity
What does a blinking light indicate on a Network Interface Card
There is network activity and data is passing over the NIC to the network
What is the best device to stop outside hackers from reaching your internal network
Intrusion Prevention System (IPS)
What port # does the Syslog use
514
What does the error at boot time “OS not found indicate”
MBR or GPT is corrupted or faulty
How should you react to “OS not found” error at boot time
Reboot into the Windows recovery mode and use bootrec/fix boot command to fix GPT
What is the only protocol used to send emails
SMTP
What is the port # for POP3
Port # 110
What is the port # for IMAP
Port # 143
What is the port # for SMTP
Port # 25
What is the port # for HTTPS
Port # 443
What is the port # for the Service Location Protocol
Port # 427
What is the port # for LDAP
Port # 389
What is the port # for SMB
Port # 445
What can result in data breach caused by data remnants for using a cloud service provider
Rapid elasticity can be a security threat to your organization’s data due to data remanences.
What cloud services should an organization choose in order to deliver virtual desktops to end-users over the internet on a per-use license basis
Desktop as a Service
What type of cabling can prevent electrical interferences or cross-talk
Shielded Twisted Pair
A virtual machine can be restored much faster than a physical server. True or false
True
What needs reconfiguring if only a few hundred unique colors are being shown in a desktop’s background picture
Color depth
What Intel CPU technology allows the processor to utilize two logical cores
Hyper-threading
What cloud computing concept focuses on the replacement of applications and programs on a customer’s workstation with cloud-based resources
SaaS
What is a touch sensitive glass panel that covers the LCD in a touchscreen assembly
Digitizer
What type of panels are used on laptops
LCD
What microprocessor is used on dedicated video adapter cards or within a CPU with integrated graphics capability to handle the mathematical calculations required to create 3D graphics
GPU
What networking hardware is used to deliver broadband internet access using a hybrid fiber-coaxial (HFC) infrastructure
Cable modem
What cable does DSL use
Twisted pair copper wire or ordinary telephone lines
What device connects fiber optics cables to other types of wiring such as Ethernet and phone lines by converting the signal from optical to electrical and vice versa
Optical Network Terminal (ONT)
Which technology has the thinnest and lightest laptop displays
OLED
What are the 2 most important things to consider when selecting a power supply replacement for a gaming station with multiple hard drives and dedicated graphics card
Wattage rating and number/type of connectors
What wireless technology uses UHF radio waves in the industrial, scientific and medical radio bands from 2.402 GHz to 2.480 GHz
Bluetooth
What wireless technology needs a direct line of sight for communication
Infrared
What causes the Pinwheel of Death on a macOS system
Memory failure or memory corruption
What type of virtualization environment should not have access to the internet
Internal. Each VM can communicate with each other and the host but there is no access to the internet
In a private virtualization environment, can VMs use a switch to communicate with the host
No
In a localhost environment, can VMs communicate with other VMs or with the host
No it can only communicate with itself
Can Android devices use Google Workspace, Flickr, and Office 365
Yes
What type of connectors are used to terminate Cat-5e network cables
RJ-45
How many pins does an RJ-45 have
8-pins
What are used to terminate cables used for phone lines
RJ-11
What is a connection-oriented protocol that utilizes TCP
HTTPS
What port # does HTTPS use
Port # 443
What UDP ports does SNMP utilize
UDP Ports 161 and 162
What UDP port uses TFTP: Trivial File Transfer Protocol
UDP port 69
What UDP ports does DHCP utilize
UDP ports 67 and 68
What causes a Operating System Not Found Error
BIOS does not detect HDD; MBR is corrupted; incompatible partition is marked as Active; HDD is damaged; a partition containing MBR is no longer active
What color are USB 3.0 ports
Red or blue
What is another name for USB 3.0 and what is the speed and wattage
SuperSpeed and 5Gbps and 4.5W
What is another name for USB 3.1 and what is the speed and wattage
SuperSpeed+ and 10Gbps and 4.5W
What is the speed of USB 1.1
12Mbps
What is the speed of USB 2.0
480Mbps
What are PCIe x 1 slots used for
Network Interface Cards and Wi-Fi network cards
What type of cable should you connect to an eSATA port
Shielded cable
What is the speed of eSATA
6 Gbps
If the LCD touch screen is not working, but the display is not cracked, this indicates what is incorrect or defective
Digitizer settings is incorrect or digitizer is defective
A DHCP server provides
Dynamic IP addresses, reserved IP addresses based on host’s MAC address, and location of DNS servers
What is a server that hosts the database of domain names and the IP addresses mapped to those names
DNS server
What is a server used to authenticate, authorize, and account for users and their actions
AAA server
This server acts as an intermediary between a client requesting a resource and the server that provides the resource
Proxy server
What port does LDAP use
Port 389
What port does SLP or Service Location Protocol use
Port 427
What port does RDP use
Port 3389
What UDP port does DNS use
UDP port 53
What is used to capture logs from different devices
Syslog server
What port # does DHCP use
Port 67 and 68
What can a mobile device use to identify its location
GPS, cellular, Bluetooth, or Wi-Fi radios
What do microwave links require
Direct line of sight between antennas to maintain a strong and effective link
What is the problem with a computer that won’t boot up and fans spin normally
Problem with power supply, motherboard, or overheating
What UDP ports does SNMP use
UDP ports 161 and 162
What port does SMTP use
Port 25
What port does NetBIOS over TCP/IP use
Ports 137 (name services) and 139 (session services)
What device has same functionality as a personal computer and can be operated with a single hand
Smartphone
What is the FTP port for connection
Port 21 control
Port 20 data transfer
What is the FTP port for data
Port 20
What is an open source wireless communication protocol for home automation that operates in the 2.4 GHz frequency
Zigbee
What is a proprietary wireless communication protocol used for home automation that operates in the 800 MHz and 900 MHz frequency ranges
Z-wave
What is the most important consideration for a computer that will be traveling worldwide
Power supply with dual voltage selection capability for maximum compatibility worldwide
What causes a flickering image on a projector
Display cable between the laptop and the projector is not connected securely
Should a printer be connected to the guest wireless network or corporate wireless network for workstations to be able to reach the printer
Corporate wireless network
What is the IPv6 address for the localhost
::1
Where are you likely to find the antenna wires within a laptop or mobile device
Positioned around the display panel
What rpm hard disk drive for a low-end office desktop
5400 rpm HDD
What virtualization concept refers to a VM’s ability to have memory allocated for its use
Resource pooling
This allows an application to be delivered to a workstation from the cloud
Virtual application streaming
What ports does SMB use
Port 445
Originally ran on top of NetBios Port 139
What port does Network Time Protocol use
Port 123
What port does IMAP use
Port 143
What port does Syslog use
Port 514
The 5.0 GHz frequency is less effective at penetrating solid surfaces than 2.4 GHz. True or false
True
Does 2.4 GHz or 5.0 GHz have a longer wavelength
2.4 GHz has a longer wavelength
Does the 2.4 GHz or 5.0 GHz support higher data rates
5.0 GHZ support higher data rates due to lower levels of congestion and interference. The 5.0 GHz has more individual channels giving it less congestion and interference
Which is the most dangerous type of threat when using virtualization
VM escape refers to malware running on a guest OS jumping to another guest or host
What is the uncontrolled deployment of more and more VMs
VM sprawl
A VM can be configured to have multiple vNICs. True or false
True
This is an older cable interface that used to be used for transmission of data between the motherboard and hard drives and CD-ROM
IDE
How many pins does an IDE cable have
40-pin ribbon cable
What is the speed of an IDE cable
50 Mbps
IDE cables are also known as
PATA cables
How many watts can a USB 3.0 support
4.5 watts
Which command provides you with a means to flush and reset the contents of the DNS client resolver cache
Ipconfig/flushdns
In which protocol is the mail downloaded to the device and the mail is removed from the server’s mailbox by default
POP3 or port 110
Which protocol provides a means for a client to access email messages stored in a mailbox on a remote server using port 143. The message persists on the server after the client has downloaded them
IMAP port 143
What protocol is used to send email between hosts on the internet
SMTP port 25
What is the port # for HTTPS
443
What can cause a screen to become squished, distorted, or have black vertical or horizontal lines filling up the excess space
Incorrect resolution
What are 2 network storage solutions
NAS or SAN
What can cause debris to be displayed on the projector screen
Artifacts on the protective glass and a failing bulb
What can cause system reboots, diminished system performance, and slow loading of websites and programs
A bad or faulty RAM module
What can a user do when an iPad application is hung and locked up
Close all applications, shut down the iPad, power on the iPad, then launch the iPad again
What is an indication of a bad power supply
A burning smell
What is indicative of a distended capacitor
A foul odor
What can cause a computer to reboot continuously
Hardware failure or system instability
What describes how many times the image on the monitor changes per second
Refresh rate
What kind of sound does a failing hard drive make
Clicking noises
What kind of sound does a failing cooling fan make
Whirring or grinding noise
How do you rebuild a failed hard drive in a RAID 5
Replace the hard drive and rebuild the RAID
What breaks often on a laptop and if broken , the laptop cannot charge or receive power from the power adapter or wall outlet
DC jack
Which Wi-Fi channel in the 2.4 GHz frequency band are only supported in Japan and Europe due to government regulations
Channel 13
Connecting a laptop to a smartphone via Wi-Fi and smartphone to internet using the phone’s built-in cellular modem
Hotspot
If you cannot access a website using its domain name (diontraining.com) but can successfully ping a remote server using its IP address (Google 8.8.8.8) indicates what
It indicates your laptop has not been properly assigned a DNS server to be used by the DHCP server
Which technology would allow your laptop to share content with a mobile device wirelessly using touchless transfer
NFC (4cm together)
What provides the ability to add wireless networking or cellular data cards to a laptop
Mini PCIe expansion cards
What is the default standard, 24-pin connector for USB 3.1
USB-C
What is the process of distributing a set of tasks over a set of resources to make their overall processing more efficient
Load balancing
What is the ability of a system to continue operating without interruption when one or more of its components fail
Fault tolerance
What must be installed between two VLANs to allow connections to be routed between them
Router or other gateway device
What is the APIPA address range
169.254.1.0—169.254.254.255
When is a computer assigned an APIPA address
When there is no DHCP server available
What are the private IP address ranges
10.x.x.x
172.16-31.x.x
192.168.x.x
What is the localhost IP address
127.0.0.1
What is the frequency for 802.11g
2.4GHz
What is the frequency for 802.11g
2.4GHz
What is the frequency for 802.11g
2.4GHz
What ports does DHCP utilize
UDP ports 67 & 68
What ports does SNMP utilize
UDP ports 161 & 162
What VM network configuration prevents a VM from communicating with the internet
Internal Network. VMs can communicate with each other and the host machine in an Internal network
Who can VMs communicate with in a private network
VMs can communicate with each other using the switch but not the host
How do you fix an iPhone that is frozen, hung up, or locked up
Hold down the power and volume down buttons simultaneously for 10 seconds and then slide to power off
Which RAID provides the best speed and redundancy for a backup and disaster recovery server
RAID 10 or RAID 1+0
What causes a CPU to overheat and shut down after operating for a short period of time
The CPU cooling fan isn’t working properly, the heat sink is dislodged, or the thermal paste breaks down
Which virtualization is supported by most modern Intel processors
VT
What is the simplest and most cost efficient way to allow other network users to access a printer if the printer does not have an RJ-45 or Wi-Fi adapter available
Establish a print share on the local host
What network standard allows networking device to provide up 15.4W of power to a connected device
802.3af or PoE at 100 meters
What network standard allows a networking device to provide up to 25W of power to a connected device
802.3at or Poe+ at 100 meters
The 802.11ac uses what wireless frequency
5GHz
The 802.11s defines usage of what technology
Wireless mesh technology
What is the most convenient and cheapest way to connect a legacy printer to the network directly
Buy an RS-232 to RJ-45 adapter
Networks do not have USB connections. True or false
True
What type of connector can be inserted into the port in either direction without damaging the port
USB-C is a 24-pin connector
FireWire and USB-B connectors are what shape
D-shaped connectors
USB-A connector are what shape
Rectangular shaped connector
What is the name of the networking protocol used by macOS to find available printers on the network to use
Bonjour
The smell of burning plastic and the computer not turning on are symptoms of what issue
Power supply issue
What tool should you use for a burning smell from a computer
Power supply tester
What does a user need to use a printer
Adequate security permissions to the printer
What is most likely reason an SSID is not being displayed within Windows
The SSID is disabled on the router so the wireless network name will not be broadcasted to any available devices within range
What frequency band does 802.11b and 802.11g use
2.4GHz
What backup solution comes with Microsoft Office 365 subscription package
OneDrive
What type of networking hardware connects two dissimilar networks such as connecting a LAN to a WAN
Router
What is a network device that receives incoming data to buffer, then the destination MAC address is compared with an address table so that data is only sent out to the port with the corresponding MAC address
Switch
What type of memory module is installed in a laptop
SODIMM
What sends a repeating signal over one end of a cable that can be detected by a probe at the other end of the cable
Tone generator and probe
What memory modules are used in workstations and printers due to its larger size and shape
DIMM
What is the IP address of a router to which packets destined to a remote network should be sent by default. Without this your network traffic can never leave the local area network
Default gateway
What is used when the DHCP server is disabled and clients are configured manually to join the network properly
Static IP address
What is configured automatically by the DHCP server when a new host joins the network
Dynamic IP address
What is used in IPv4 to differentiate the two portions of an IP address into the Network ID and the Host ID
Subnet Mask
What can you use to extend the smartphone’s battery life and use it continuously throughout the day
Smartphone case with built in battery
Which button on a desktop computer begins a reboot of the computer without power being removed from the computer’s components
Reset button on the front panel of a desktop computer next to the power button
What do most wearable fitness devices use to determine how many steps you take each day
Accelerometer
If the workstation is not recognizing the hard drive, what would be the error message
No boot device available
If the hard drive was recognized but the Windows OS was not installed properly, what would be the error message
OS not found or NTLDR not found
What would be the error message for an issue with BIOS
BIOS ROM checksum error
Can power fluctuations cause flickering of the laptop display
Yes, flicker is a visible change in a lamp’s brightness due to rapid fluctuations in power supply voltage
A dedicated GPU or video card is more expensive, can be upgraded or replaced, and provides better performance than an integrated GPU. True or false
True
What kind of video card should be used for gaming, video editing, or 3D rendering
Separate video card with a dedicated GPU
What is the MacOS term for BSOD
Pinwheel of death
What is the Linux term for BSOD
Kernel panic
Port # 3389 is used by what protocol
RDP
Port # 22 is used by what protocol
SSH
Port 23 is used by what protocol
Telnet
Port 110 is used by what protocol
POP3
What component of a laser printer is used to combine the 4 colors before printing them to the paper in one pass
Transfer belt
What component in a laser printer applies an electric charge to the paper to attract toner from the photoconductor during the imaging process
Transfer roller
What is the component in a laser printer that turns above a stack of paper to feed a sheet into the feed roller
Pickup roller
What is an expansion card that enables a PC to connect to a LAN
Network Interface Card aka network adapter
What expansion card enables a PC to connect to a LAN
Network Interface Card
What is another name for a Network Interface Card
Network Adapter
This is a type of network bridge that provides bi-directional data communication via radio frequency channels on a hybrid fiber coaxial (HFC), radio frequency over glass (RFoG), and coaxial cable infrastructure
Cable modem
This technology is used to transmit multimedia traffic at high-bit rates over twisted pair copper wire (telephone lines)
DSL (Digital Subscriber Line)
A device that connects fiber optics cables to other types of wiring such as Ethernet and phone lines by converting the signal from optical to electrical and vice versa
Optical Network Terminal or ONT
What is commonly used with Fiber To The House installations
ONT
This provides block-level striping with distributed parity to provide redundancy using a minimum of 3 disks
RAID 5
What is important to have in a virtualization workstation
A fast processor with multiple cores.
It is also good to have lots of memory with a fast HDD
If a power supply is chosen that is too large, it will generate excessive heat that can overheat the computer and its components. True or false
True
Can a flag pole placed between two antennas cause signal attenuation and intermittent connectivity issues
Yes. The flag pole in the path of the two antennas may be obstructing the line of sight and attenuating the signal
What is a common peripheral used with a point of sale workstation
Signature pad
For optimal network performance, what is the most important consideration for a WAP to ensure that the building’s construction doesn’t cause interference with the wireless signals
WAP placement
In which protocol is mail downloaded to the device and the mail is removed from the server’s mailbox by default
POP3 or port 110
Which protocol does not remove mail from the server when the client but instead maintains a copy on the server indefinitely until the user forces it to be deleted
IMAP or port 143
What protocol is used to send mail between hosts on the internet
SMTP or port 25
What is a secure protocol used to provide web content using SSL/TLS encryption
HTTPS or port 443
What type of power supply allows the installer to attach or remove cables from the power supply as needed to reduce cable clutter inside the computer’s case
Modular Power Supply
What power supply is commonly used in gaming computers since they have high powered graphics card
750 watt rated power supply
What is the 5th step of the troubleshooting methodology
Verify full system functionality and implement preventative measures
What is the 4th step in the troubleshooting methodology
Establish a plan of action to resolve the problem and implement the solution
What is used to test a port
Loopback plug
What is used when a CDMA smartphone attempts to connect to the cellular network while traveling
PRL and PRI
Preferred Roaming List
Preferred Roaming Index
This is embedded operating system in the firmware of a smartphone or cellular device
Baseband
What is also known as a virtual machine monitor and is a process that creates and runs Virtual Machines
Hypervisor
What are examples of Type 2 Hypervisors
VM Ware and VirtualBox
What is a VM that has been installed without authorization
Rogue VM
The uncontrolled deployment of more and more VMs is referred to as what
VM sprawl
What printers use a filament to create the objects being printed
3-D printers
What uses the most power of any component in a computer
Dedicated graphics cards
What should you verify before installing a new dedicated GPU using an expansion card
The power supply’s wattage rating
What connectors are used with storage devices and optical drives
SATA connectors
What can cause an LCD/LED screen to become squished, distorted, or have black vertical or horizontal lines filling up the excess space
Incorrect display resolution
What networking hardware is used to create network infrastructure within the cloud
Software-defined networking
If your hard drive produces a S.M.A.R.T. failure, what should you do first
Immediately back up the drive
Once you back up the drive after a S.M.A.R.T. failure, what can you do next to repair the drive
Use chkdsk
What cloud model allows for the seamless integration of both onsite and cloud services to the end-user simultaneously
Hybrid cloud
What cloud model contains services offered by third-party providers over the public internet and is available to anyone who wants to use or purchase them
Public cloud
What can be used to capture a purchaser’s credit card details
Bluetooth card reader
What is the speed of infrared wireless networking standard
4 Mbps with direct line of sight for communications. Used to connect mice and keyboard to a laptop in the 1990s
What is a flash drive typically used for digital cameras and smartphones
Memory card
What type of network cable should be used to prevent crosstalk
Shielded Twisted Pair STP
What is used to terminate cables used for phone lines
RJ-11
This provides a full virtualized desktop environment from within a cloud-based service
DaaS
What is the localhost IP address for testing your Network Interface Card
127.0.0.1
What are the ports for NetBIOS protocol to share files and printers on Windows network
Ports 137 and 139
What ports does FTP protocol use to transfer files across the internet
Ports 20 and 21
What can cause a computer to keep rebooting itself
A faulty power supply or a computer that is overheating
What can VGA cable with a few broken pins cause on the display screen
Incorrect colors on the display screen
What cable supports both charging and data transfer with a non-directional connector inserted into a port on the device
USB-C
What can cause a projector to overheat and turn off the bulb to reduce the machine’s heat load
A faulty or clogged cooling fan
This is a sophisticated type of port replicator designed to provide additional ports (such as network or USB), expansion slots, drives to a laptop when used at a desk
Docking station
A simple device that extends the range of ports (USB, DVI, HDMI, Thunderbolt, network) available for a laptop when used at a desk
Port replicator
What component would require you to de-solder the old part from the laptop to install and solder in a new one
DC jack is always soldered to the motherboard in a laptop
Where are cellular cards usually installed in a laptop
Mini PCIe slot
Which cellular technology was not popular outside the U.S.
CDMA
What cellular technology uses a SIM card to identify the subscriber and network provider
GSM (Global System for Mobile) is popular outside the U.S.
What is 4G cellular technology made up of
LTE and LTE-A
What is the speed of LTE
Theoretical speed of 150 Mbps and real world speed of 20 Mbps
What is speed of LTE-A
Theoretical speed of 300 Mbps and real world speed of 40 Mbps
What is the speed of 3G using GSM and HSPA+
Theoretical download speed of 168 Mbps and theoretical upload speed of 34 Mbps
What technology is 3G made up of
HSPA+ and EV-DO
What should be implemented on the switch to prevent dropped calls VoIP telephone service
Quality of service should be implemented on the switch
What can fix incorrect chroma display between the monitor and printer
Printer and monitor are using different color profiles. Calibrate both the printer and monitor to the same standard so the colors will match
How do you set up a thin client using a Virtual Desktop Infrastructure
Connect thin client to the network, update the latest security updates, and install the necessary applications
What type of expansion bus technology uses lanes with point-to-point communication paths between two components on the motherboard
PCIe
How many watts do the top graphics cards consume
110 watts to 270 watts
How many watts do most business computer power supplies have
300-watt power supply
How many watts do low-end gaming computer power supplies have
450-500 watts power supply
How many watts do high-end gaming workstation power supplies have
750-850 watts power supply
Where do you check to determine if a system with an Intel i7 processor can run a virtual machine
Check the settings in BIOS to determine if virtualization was enabled
What is the Intel virtualization technology called
VT
What is the AMD virtualization technology called
AMD-V
What older type of printer works by pressing a ribbon of ink onto a sheet of paper using a series of dots and multiple copies of a document can be created at once
Impact or dot-matrix printer
This printer is commonly used for receipts at grocery stores and restaurants
Thermal printer
What is called when the top of the projected image is wider or narrower than the bottom of the image
Keystone effect
How do you fix the keystone effect in a projector image
Adjust the keystone settings in the projector
VOIP devices that rely on PoE should use what cables for connection
CAT 5e or CAT 6
at 300 ft or 100 meters
When using a Type 1 Hypervisor virtualized environment, what hardware is necessary to connect the VMs to the corporate network
Virtual NIC
What optical discs can only support storing up to 700 MB on a single piece of media
CD-RW
How much can single layer DVD store
4.7 GB
How much can a dual layer DVD store
8.5 GB
How much can a single layer Blu-ray Disc store
25 GB
How much can a dual layer Blu-ray Disc store
50 GB
What software suites are designed to manage the use of smartphones and tablets within an enterprise
MDM or Mobile Device Management
What uses a SIM card to identify the subscriber and network provider
GSM or Global System for Mobile
What is an interface for connecting flash memory devices such as SSDs to a PCI Express bus
NVMe
If you’re connecting a network over a long distance (over a few hundred meters) what cable should you use
Fiber optic cable
What distance can shielded and plenum copper cables cover
Maximum of 100 meters
What distance can coaxial cables cover
Maximum distance between 200-500 meters
A laptop that can stay on while connected to the wall outlet means the DC jack, power adapter, and wall outlet is good, and thi is bad:
Battery is bad
Before making changes to a client’s computer, what should you ensure
Verify that a recent backup of all the client’s important files have been created
What is a measurement of performance used to compare a hard disk drive and a solid state device
IOPS Input/output Operations per Second
What is best practice when replacing a disk in a RAID
Replace it with the same brand and model of the hard drive
What do most professionals purchase when initially building out their RAID array
Spare hard drives
What is installed in a communication closet to connect network wall jacks to network switch using pre-wired RJ-45 ports
Patch panel
What are used to logically divide networks into subnets
Routers
What is the best course of action for replacing a laptop cracked screen when the instructions are not available
Carefully remove the laptop’s cracked screen while documenting and labeling all of the screw locations and cable/connectors
Which cloud computing concept allows users to store files on a cloud-based server when necessary and copy that data from the cloud, and put it back on the device when space once again becomes available on the device
On demand
This concept allows a virtual environment to allocate memory and processing capacity for a VMs use
Resource pooling
This is the use of a mobile device’s cellular data plan to provide internet access to a laptop or PC
Tethering
What is tunneling
Encapsulation protocol that wraps up data from one protocol for transfer over a different type of network
What is the temporary storage used for running applications
RAM
This appliance enforces a variety of security related measures, combining the work of a firewall, malware scanner, intrusion detection system, and intrusion prevention system
Unified Threat Management
How does a DHCP reservation work
The DHCP server will assign an IP from its DHCP scope to the client and reserve it based on its MAC address
This record is an alias name which associates one domain name as an alias of another in DNS
CNAME
This record is used for outgoing (SMTP) and incoming (POP3/IMAP) traffic in DNS
MX
This record associates your domain name with an IPV4 address in DNS
A
This record associates your domain name with an IPV6 address in DNS
AAAA
What prevents malicious and unauthorized apps from loading into the OS during the startup process
Secure Boot is enabled by default in Windows 10
When there is excessive heat and swelling from a smartphone, what should be done
Turn off the phone, do not plug it into the wall outlet, and replace the battery
If there is an associated fee for every file or amount of data, what kind of plan is this
Metered plan
What UDP ports does SNMP use
Ports 161 and 162
What is a complete development and deployment environment in the cloud, with resources that enable you to deliver everything from simple cloud-based apps to sophisticated, cloud-enabled enterprise applications
PaaS
This is a server that accepts requests through HTTP or HTTPS for a webpage and delivers the webpage and other requested resources to the user
Web server
This acts as intermediary between computers and printers by accepting print jobs and then sending them over to the correct printer when it is ready to accept new jobs
Print server
What can happen when apps are updated automatically
They can sometimes become faulty or corrupted and slow down performance on the device
How do you configure a computer to utilize the PXE (Preboot Execution Environment) boot option
BIOS boot option
What is important when taking apart a laptop
Keep track of each of the screws and the location they were removed from
What will not sync your data between Windows, macOS, Android, and iOS devices
Shadow Copy because it only works on Windows devices
What is a server or network appliance used to prevent users from being overwhelmed with spam or junk email
Spam gateway
This is a server that collects diagnostic and monitoring data from the hosts and network devices across a given network
Syslog server
This is a server that accepts requests through HTTP or HTTPS for a webpage and delivers the webpage and other resources to the user
Web server
What is a hardware-based cryptographic processing component that is part of the motherboard
TPM or Trusted Platform Module
What type of network cable can provide 10 Gbps speed
CAT 6a
Supports 10 Gbps to 165 ft or 55 meters
What speed does CAT 5e and 802.11ac support
1 Gbps
What speed does 802.11n support
600 Mbps
Where do you look to find the cause of your Windows 10 system crash and how to fix it
BSOD
The MAC address is composed of how many hexadecimal digits
12
This attack is an attempt to make an online service unavailable by overwhelming it with traffic from multiple sources
Distributed Denial of Service DDoS
This is built in diagnostic program that checks the hardware to ensure the components required to boot the PC are present and functioning properly
POST Power On Self Test
This is an authentication technology that allows users to authenticate once and receive authorizations for multiple services
Single Sign On
This is an authorization scheme that relies on two of five factors: something you know, something you have, something you are, something you do, and somewhere you are
MFA Multifactor Authentication
If a laptop loses power when moved, what is most likely the issue
Loose battery connections
What is the most commonly used key to enter the BIOS/UEFI boot order menu
F12
What happens if you press F11 during the boot up process on a Windows workstation
The system will boot into recovery mode
What happens if you press F8 during the boot up process on a Windows workstation
It invokes the Advanced Boot Options menu to allow the selection of different start modes for troubleshooting
When you are asked to work on a machine containing proprietary information and you need to remove the workstation for repairs, what should you always do
Verify the company’s corporate policies regarding the removal of a workstation for repair
What does a bootable device not found error mean
The hard drive is not found or is off
What provides a cryptographic authentication mechanism to positively identify an organization as the authorized sender of email for a particular domain name
DKIM
DomainKeys Identified Mail
What ensures the DKIM and SPF or Sender Policy Framework are being utilized effectively
DMARC Domain-Based Message Authentication, Reporting, and Conformance
What is a communication protocol for electronic mail transmission that does not utilize cryptographic authentication mechanisms by default
SMTP or Port 25
This technology is used to transmit multimedia traffic at high-bit rates over twisted-pair copper wire (over ordinary telephone lines)
DSL. A telecommunications company can connect a user’s home to the local switching center using normal telephone lines and the local switching center to the central office over fiber optic cables
What are the sequence of events for the laser printer’s imaging process
Processing
Charging
Exposing
Developing
Transferring
Fusing
Cleaning
What can you do to speed up the boot time of the server if you hear clicking noises from the hard drive during booting
Defragment the hard drive since the clicking means the system has to access many parts of the drive to load the files during booting
What can you do to get a laptop connected to the wired network if the RJ-45 port is broken
Purchase a USB to RJ-45 adapter
What is considered the most popular and widely used RAID configuration
RAID 5
What causes fading in a laser printer
When the ink or toner is running low
This is used to describe scalable provisioning or the capability to provide scalable cloud computing services
Rapid elasticity
What can cause a dim image from a projector
The contrast is low. Increase the contrast to brighten the screen’s image
What is the primary consideration for a storage controller card
If it supports hot-swappable drives to prevent downtime
What can you do to extend the lifespan of an SSD
Disable any scheduled defragmentation tasks
When installing DIMM memory modules in a new gaming workstation, what should you do first
Consult the motherboard’s manual and documentation to determine the best method of installing the memory into the system
How many bits does a single channel memory use
64 bit bus between CPU and RAM
How many bits does a dual channel memory use
128 bits bus between the CPU and RAM
What expansion cards provide the ability to add wireless networking or cellular data cards to a laptop
MiniPCIe
This is a slower but more reliable data delivery protocol that ensures packets arrive error-free and without loss
TCP
What can determine a wireless network’s signal strength, the frequencies in use, and any possible radio interference
Wi-Fi Analyzer
How can you fix dead zones in a network’s wireless coverage
Add additional access points
What is the touch sensitive glass panel covering the LCD in a touchscreen assembly
Digitizer
This is an electrical component that stores electrical energy and is often used to regulate voltages
Capacitor can hold a charge after the power is removed
What would cause you to replace a motherboard based on this symptom observed
Distended capacitors
What indicates a distended capacitor
Foul odor
What indicates a burning smell
A bad power supply
What are the next two steps after determining a laptop motherboard needs to be replaced
Read the owner’s manual for procedures and steps to avoid breaking warranty and documentation of all screws and their locations
Do you disconnect the laptop keyboard or battery first
Disconnect the battery first
What is the best environment to test operating system patches before deployment
Use a virtualized environment to test the patch across each operating system before deployment
What can measure voltage, amperage, and resistance of a circuit
Multimeter
What can you do stop a noisy and whining sound from the fan
Apply a small amount of oil to the fan’s bearings
What can cause a laptop to shut down intermittently at random times when more intensive processor tasks are performed
Inadequate airflow and overheating
What does a virtual reality headset require in a computer
Fast processor, lots of memory, and dedicated graphics card
What is commonly used to connect wireless devices like mice, trackpads, headphones and other devices
Bluetooth
What type of system memory is commonly used in production servers and not in standard desktops or laptops
ECC or Error Correcting Code
If no error is shown in the taskbar’s printer icon, what should the user do
The user should open the print queue to determine if the print job has become stuck
What printer concept produces higher quality outputs
Postcript PS is slower but higher quality
What is a page description language used to tell printers how to properly layout and print the contents of a document on a page
Printer Control Language PCL is faster to print than PS
What does a user need to configure the email client on an Android device with an Office 365 account
Email and password
What printer configuration settings control the size of the paper used for the print job
Tray
What should be installed as an intermediary between your clients and the web servers they want to connect to make an HTTP request from the client, check it, and then forward it to its destination
Proxy server
What server can provide the location of the DNS server
DHCP server
What printer setting allows the gathering and arranging of individual sheets or other printed components into a pre-determined sequence
Collate
What protocol operates over Port 137 and 139
NetBIOS/NetBT
What port does IMAP use
Port 143
What network device uses Access Control Lists ACLs to prevent unauthorized access into company systems
Firewall
This is the use of a program to screen and/or exclude access to web pages or emails deemed objectionable
Content filtering
This distributes a set of tasks over a set of resources to make their overall processing more efficient
Load balancer
These are pre-paid, a la carte, pay per use, or committed offerings
Metered services charge users based on the actual usage of service resources on an hourly or monthly basis
This occurs when a router takes requests from the Internet for a particular application, such as HTTP/port 80 and then sends them to a designated host on the local area network
Port forwarding
What protocol is port 80
HTTP
Which form factor of storages devices are not used in laptops
3.5” are only used in desktops and some networked file servers
What form factors for storage devices do laptops use
2.5” and 1.8” magnetic drives and M.2 form factor SSD
What does a single beep during the boot up process indicate
Successful completion of POST
Which laptop display uses a fluorescent backlight to illuminate the image
LCD
How many pins does Apple’s lighting port have
8 pins
The lighting cable is used by every iPhone from what series
iPhone 5- iPhone 13
What is the default standard cable used in USB 3.1
USB-C with a 24 pin connector
For wireless B and G networks, what channels should you always use to ensure you are using non-overlapping frequencies
Channels 1, 6, and 11
What color are USB 3.0 ports
Red
If the printer pages have a dust like coating, what component us failing
Fuser
This feature turns your smartphone into a Wi-Fi access point and then allows other devices to connect to your smartphone and gain access to the internet
Mobile hotspot
What port does encrypted POP3 use
Port 995
What port does encrypted IMAP use
Port 993
What port does encrypted SMTP use
Port 465
What is the third step in the troubleshooting methodology
Test the theory to determine the cause
What device connects to a USB port to allow additional USB devices to be connected to the PC, essentially increasing the number of USB ports available
USB hub
This connector can be used as a DisplayPort or USB 3.0 connector
Thunderbolt
Thunderbolt 3 uses what connectors
USB-C connectors
This fills any gaps between the CPU and heat sink to transfer heat more efficiently to the heat sink from the CPU
Thermal paste
What type of connector is used to terminate a coaxial cable
F type
What type of cable is recommended for Cable TV, satellite, TV antennas, or broadband internet
RG-6
What cabling system is better for CCTV systems and other analog video signals
RG-59
What is used to terminate an RS-232 serial cable
DB-9 connector
What is used to terminate cables used for phone lines
RJ-11
This is used to terminate a copper twisted-pair Ethernet cable
RJ-45
Replacing an HDD with an SSD can dramatically increase the loading speeds as the OS and other programs are read from the storage device during boot up and when loading programs. True or false
True
An integrated GPU cannot be upgraded in a laptop. True or false
True because the integrated GPU is built into the CPU
Can a dedicated GPU be added to most modern laptops. Yes or no
No
What is an input device used on most laptops to replace a mouse
Touchpad
This is a device that electronically captures a person’s handwritten signature on an LCD touchpad using a pen-type stylus
Signature pad
Where do you go to select the boot order
Boot to BIOS to select the boot order
What is a network boot execution process allowing you to retrieve an image from a server
PXE or Preboot Execution Environment
What type of IP address is the range of 169.254.0.0- 169.254.255.255
APIPA address
What does it mean when a workstation is assigned an APIPA address
The DHCP server is unreachable
Boot into recovery mode needs to access the internal hard drive’s OS. True or false
True
This resource record indicates which Domain Name Server is the best source of information for the specified domain
SOA Start of Authority
What type of network connection would allow VMs to have internet access
External
What type of network would allow VMs to communicate between the host and other VMs
Internal
What type of network uses a switch that allow VMs to communicate with other VMs but not the host
Private
What type of network allows VM to communicate with itself only
Localhost
What device would allow you to control and provide input commands to multiple servers within the same server rack using a single set of input commands
KVM switch
What software secures and enables IT administrators to have control over enterprise applications on end users’ corporate and personal smartphone and tablets
MAM focus on the application
This is designed to manage the use of smartphones and tablets within an enterprise
MDM focus on the device
What communication standard uses a SIM card to identify the subscriber and network provider
GSM Global System for Mobile
What communication standard uses a method of multiplexing a communications channel using a code to key the modulation of a particular signal
CDMA Code Division Multiple Access
What connection allows an individual user to connect to a private network from a remote location using a laptop or desktop computer connected to the internet
VPN Virtual Private Network
This is a network service provided by a router or proxy server to map private local addresses to one or more publicly accessible IP addresses
NAT Network Address Translation
This is a logically separate network created using switching technology
VLAN has hosts on two VLANs use a router to communicate
This is commonly used in production servers and is not standard in desktops or laptops
ECC Error Correcting Code
What do AirPods need enabled to work
Bluetooth
This is an IPV6 address that is valid only for communications within the network segment or the broadcast domain that the host is connected to
Link local address
What USB can support data rates up to 12Mbps
USB 1.1
This is an electronic device that receives a signal and retransmits it to extend signal transmissions over longer distances
Repeater
This is a network device that receives incoming data into a buffer, then the destination MAC address is compared with an address table so that the data is only sent out to the port with the corresponding MAC address
Switch
What are the 4 main things you need for a gaming PC
An SSD
High end video GPU
High definition sound card
High end cooling
What radio frequency does Zigbee use
2.4 GHz
What are large smartphones, smaller than a tablet but larger than a smartphone
Phablets
What technology can be used in a licensed long range fixed wireless system
Cellular fixed wireless system that requires a license from the FCC to operate to ensure they are not interfering with other users and services in the same frequency band
What RAID offers the fastest speed, best reliability, and highest redundancy but is more costly as the overall disk storage will be greatly reduced
RAID 10
What is the most likely cause of a continued paper jam error after pulling out the jammed paper out of the printer
Small bits of paper being left in the path or in front of a blockage sensor
Can the macOS be installed as a guest inside of a virtual machine on a Windows 10 laptop running Virtual Box
No because macOS can only be installed Virtual Box virtual machine running on a macOS system
Can a Windows or Linux virtual machine be installed on any host operating machine
Yes
What should you if your MacBook fails to print on a network printer while other Windows users are having no issues printing
Install the print drivers for OS X on the print server
What causes a laptop to shutdown whenever it is moved
Loose battery connection
If you want users to access a server’s data, what do you need to do to provide this access
Configure file sharing
What is used to transfer ink to a piece of paper on an impact printer
Ribbon
What printer uses toner
Laser printer
What printer uses filament
3-D printer
Which RAID provides redundancy and double fault tolerance
RAID 10
This RAID uses disk striping with parity but only provides single fault tolerance
RAID 5
What is the second step in the troubleshooting methodology
Establish a theory of probable cause
What is the best way to migrate corporate email account data from an iPhone to a new Android device
Log into the corporate email account on the new Android phone and restore data to the new iPhone
What is the most likely problem if an Android phone’s display is dim and hard to read in a room with normal lights
Faulty ambient light sensor
Which technology allows a company the ability to manage employees’ mobile devices, provide security updates, and perform remote administration
MDM Mobile Device Management
What is the port number for HTTPS
443
What type of services allow you to get more storage and more resources added to the cloud as fast as possible
Rapid elasticity
What should be done if a few users cannot get speeds higher than 108 Mbps with an 802.11n network card
Update the WLAN network card
What speed can wireless N networks support
600 Mbps with the network cards’ proper software drivers
Which wireless network utilizes the 5 GHz frequency band and reaches speeds up to 54 Mbps
802.11a
Which wireless network utilizes the 2.4 GHz frequency and reaches speeds up to 11 Mbps
802.11b
Which wireless network utilizes the 2.4 GHz frequency and reaches speeds up to 54 Mbps
802.11g
Which wireless network utilizes the 2.4 GHz frequency band at 108 Mbps or the 5 GHz at 600 Mbps
802.11n
Which wireless network utilizes MIMO
802.11n
Which wireless network utilizes the 5 GHz frequency band and reaches speeds up to 3.5 GBPs
802.11ac
Which wireless network utilize multi-MIMO technology to use multiple antennas to transmit and receive data at higher speeds
802.11ac
Which wireless network utilizes the 2.4 GHz and 5 GHz frequency bands and reaches speeds up to 9.6 Gbps
802.11ax
What is 802.11ac also called
Wi-Fi 5
What is 802.11ax also called
Wi-Fi 6
802.11ac also has a version called Wi-Fi6e that supports what frequency band
6 GHz
What wireless network uses channel bonding to create a single channel of up to 160 MHz to provide additional bandwidth
802.11ac
What wireless network uses orthogonal frequency-division multiple access OFDMA to conduct multiplexing of the frequencies transmitted and received to each client to provide additional bandwidth
802.11ac
What is the most common USB connector used to connect to a printer
USB Type B
What USB was developed for connecting compact and mobile devices such as smartphones, MP3 players, GPS devices, and digital cameras
Micro USB
What USB was introduced with USB 2.0 and used with digital cameras and early tablets
Mini USB
This record lets domain administrator enter text into the Domain Name Systems
TXT record
What setting allows the Windows output be stretched across two or more monitors as if they were a single monitor
Extended mode
This is a network condition that occurs when a time delay in the sending of data packets over a network connection occurs
Jitter
If the POST test cannot be run and the system will not boot up could indicate what
The CPU 8-pin power cable is not connected to
What are private IP address ranges
10.x.x.x
172.16-31.x.x
192.168.x.x
What is the APIPA address ranges
169.254.1.0-
169.254.254.255
This device will allow the user see their notifications, chat activity, and even make phone calls
Smartwatch
What causes faded or faint colors in your laser printer printed papers
Low toner
Graphics cards use these expansion slots for connectivity
PCIe x 16
This is an information provision and distribution model in which data files including text, images, sounds and videos are made available to customers over a network, typically the internet
Data as a Service DaaS
What does installing a multicore CPU achieve
Increased performance and overall processing
When attempting to access shared folders on a server, what do you need for increased performance and overall processing
High performance Network Interface Card
Which resources is used by virtual machines to communicate with other virtual machines on the same network but prevents them from communicating with resources on the internet
Virtual Internal Network
What are the 2 main things to include for a dedicated virtualization workstation
Multiple CPU cores and maximum RAM
What would happen if a smartphone is left in a car on a sunny day
It would overheat and shut down
What Hypervisor runs on top of an existing operating system
Type 2 Hypervisor
Type 1 Hypervisor is also known as as
Bare metal
If the laptop battery won’t charge or will only charge if the connection is made at a certain angle, this is an indication of what
The DC power jack has failed
Which cloud services provides access to Docs, Sheets, Drive, and other productivity tools using a subscription based pricing model
Google Workspace
What wireless networking technology is commonly used to connect a mouse to a laptop to create a PAN
Bluetooth
What is the frequency range for microwave transmissions
4 GHz to 10 GHz
How do you deploy the image of a brand new server to demonstrate the vulnerabilities exposed while maintaining the security of the corporate network
Deploy the system within a virtual machine, ensure it is in an isolated sandboxed environment, then scan it for vulnerabilities
How many pins does a VGA connector have
15
What component in a computer makes a loud clicking noise when it’s failing
Hard disk drive
What could cause a motherboard to not recognize a new hard disk drive even though all the cables are connected properly
The motherboard’s firmware is not supporting a newer hard drive model so it needs to be updated
What do you do if a RAID 5 configuration alerts you that the RAID is degraded and that Local Disk 0, Physical Disc 3 has failed
Schedule an authorized downtime, replace the failed drive, rebuild the array, and confirm that the RAID is no longer reporting itself as degraded. During rebuilding the array, the system may perform extremely slowly
What can cause a workstation to overheat and shutdown or reboot itself to protect the processor
If the case fans are clogged with dust or become unplugged
How can a company ensure that its mobile devices are configured to protect any data stored on them if they are lost or stolen
Full storage encryption. The device can be remotely wiped if lost or stolen
What laptop display supports a high refresh rate of 120 Hz or 144 Hz
TN or Twisted Nematic display is black with no electric current and white with electric current
What LCD panel provides a high quality color reproduction
IPS in-plane switching
What LCD panel uses technology designed to have liquid crystals lay perpendicular to the glass substrate when power is removed and in vertical position when the voltage is applied. This allows light to move through liquid pixels when voltage is applied and the image is then produced
Vertical Alignment LCD panel
What is a flat panel display that uses small cells containing plasma with ionized gas that responds to electric fields
Plasma displays create excessive heat and are not energy efficient
What records are used to provide the mail server that accepts email messages for a particular domain
MX Mail Exchange
These records are used to list the authoritative DNS server for a particular domain
Nameserver NS
What wireless networks utilize the 2.4 GHz frequency for their communications
802.11b and 802.11g
What wireless networks utilize either the 2.4 GHz, 5.0 GHz, or both
802.11n and 802.11ax
What frequency band does 802.11ac or Wi-Fi 5 utilize
5.0 GHz
How can you establish a connection between your smartphone and the car stereo
By pairing the device
This is a piece of code that is loaded during the boot sequence of an operating system
Device driver
How do you install Windows and Linux to practice configuring these operating systems
Install virtualization software like VirtualBox, VM Ware, or Hyper-C and install each OS as a virtual machine
Does Chromebooks support virtual machines
No
What rpm hard disk drive should be used for a high performance gaming computer
15,000 rpm hard disk drive or SSD
What can cause a projector to turn itself off
Overheating from a dirty cooling fan or failed cooling fan
How do you fix a laptop with a screen image that is being displayed upside down
Change the orientation of the screen by holding down the Ctrl and Alt key, then press up/down/left/right arrow key
This refers to using VM as a means of provisioning corporate desktops
Virtual Desktop Infrastructure
What IP address should be used for servers to ensure they are easy to find, access, and manage on the network
Static IP address
An APIPA address is also known as
Link local address
A perimeter network is formerly known as
Demilitarized zone or DMZ
Where should a Minecraft server be placed when configuring a firewall
Perimeter network is a private network connected to the internet and protected against intrusion
For an extremely high powered processing environment that generates lots of heat, what is the most efficient way to dissipate the system’s heat
Liquid cooling system
A continuous reboot could be a problem with what
RAM
How can you print a spreadsheet horizontally on a piece of paper instead of vertically to fit more columns on a single piece of paper
You can change the orientation setting from the default of portrait to landscape
What can cause slow performance after a RAID 5 hard drive is replaced
The RAID 5 rebuilding itself can cause slow performance
What can cause an impact printer’s output to crease the paper as it is printed and the paper jamming
Incorrect paper size and excess paper in the feed path
What type of connector is used to connect a serial port or external modem
DB-9 is a serial connector
What type of connector terminates an RS-232 serial cable
DB-9 serial connector
This provides a full virtualized desktop environment from within a cloud-based service
Desktop as a Service DaaS
DaaS is also known as
Virtualized Desktop Infrastructure DVI
Why does 5.0 GHz frequency supports higher data rates than 2.4 GHz
Due to lower levels of congestion and interference. The 5.0 GHz frequency has more individual channels
Does the 5.0 GHz or 2.4 GHz frequency cover a longer range using same power output levels
2.4 GHz covers a longer range due to its longer longer wavelength
Does the 2.4 GHz or 5.0 GHz frequency propagates better through solid surfaces
2.4 GHz propagates better through solid surfaces due to its longer wavelength
What is the interface standard for connecting high speed components
PCIe slots take GPUs, RAID cards, network adapters, Wi-Fi cards, SSD add-on cards
Which Wi-Fi channel in the 2.4 GHz frequency band is only supported in Japan
Channel 14
How many MHz does Wi-Fi communication require to operate effectively
20 MHz
How many bits of memory can a quad channel memory controller transfer per transaction
256-bits of memory per transaction (4x64-bits)
What cloud computing resources are most important when determining a cloud file-storage synchronization application’s performance
I/O bandwidth is the measurement of the amount of input and output operations that can be performed within a given time
What emulates hardware without relying on the CPU being able to run code directly
Emulator
What is not a common voltage produced by the power supply of a computer
6 VDC
The OS not found at boot time indicates what
The MBR or GPT is faulty or corrupted
How do you fix the MBR when it is faulty or corrupted
Boot into the Windows recovery mode and use the command bootrec/fixmbr
This is a simple device to extend the range of ports (USB, DVI, HDMI, Thunderbolt, network) available for a laptop computer when it is used at a desk
Port replicator
This is a full, thick-client user environment run as a virtual machine on a server and accessed remotely
Remote hosted virtual desktop allows a company to utilize the cloud for its desktop infrastructure, reduce its maintenance cost, and shift capital expenses
What port does the Network Time Protocol (NTP) use
Port 123
What port does the Trivial File Transfer Protocol (TFTP) use
Port 69
What port does the DHCP use
Port 67
If the power supply fan is faulty, what should you do
Replace the entire power supply. Never attempt to fix broken power supply or broken power supply cooling fan due to the power supply’s high voltage electrical components
What happens if the hard drive fails
The workstation will experience data loss or will fail to boot up
Is it possible to use both DDR3 and DDR4 in the same workstation
No because they are two different form factors that use different notches
If a static IP address is issued to a virtual machine and then both the virtual machine and printer on the network have intermittent connectivity issues, what could cause these issues
An IP conflict often causes this type of intermittent connectivity. An IP conflict occurs when a static IP is also part of a DHCP scope
What does a GPS need done to determine the true North
Calibration
Which cellular technology utilizes new frequency bands to reach proposed speeds up to 70 Gbps
5G
What cellular technology is made up of low band, mid band, and high band mmWare technology
5G
What cellular technology is made up of LTE and LTE-A
4G
How can you access files from a hard drive after removing it from a laptop
Remove the hard drive from the laptop, place it in an external USB enclosure, and connect it as a secondary drive to the CFOs desktop computer to copy the spreadsheets
Which wireless networks use MIMO
802.11n
Which wireless network uses MU-MIMO
802.11ac
WPA2 is a wireless encryption standard and can be used with which wireless networks
802.11 G N AC AX
What is IEEE 802.3af
POE or Power over Ethernet
What technology is commonly used to inventory the organization’s equipment by attaching a tag to the device containing a chip programmed with the assets data, allowing one-way communication to occur from tag to the reader
RFID
RFID is a one-way communication mechanism while NFC is two way communication mechanism. True or false
True
What frequency does Zigbee use
2.4 GHz
What frequency does Z-wave use
800 MHz and 900 MHz frequency ranges
What causes several black dots on the laptop’s display
Dead pixels are lost forever and the entire display needs to be replaced
What would you do before removing and replacing a laptop’s lithium-ion battery pack
Shut down the laptop and unplug the laptop from the power adapter
If your laptop display is shown in low resolution but the computer isn’t is safe mode, what could be the issue.
Corrupted or missing display driver
This is a memory controller with two primary pathways through the bus to the CPU to transfer 128-bits of data in each transaction
Dual channel
What port is SMB
Port 445
What is the component in a laser printer that applies an electric charge to the paper to attract toner from the photoconductor during the imaging process
Transfer roller
This is the component in a laser printer that fixes toner to media
Fuser assembly
This is a parallel expansion card standard that was originally designed for attaching a video card to a computer system to assist in the acceleration of 3-D computer graphics
Accelerated Graphics Port AGP
This is a close range network that is usually based on Bluetooth or NFC for communications between personal devices such as smartphones, laptops, printers, and other peripheral devices
PAN Personal Area Network
This is a dedicated, independent high-speeed network that interconnects and delivers shared pools of storage devices to multiple servers
SAN Storage Area Network
How can you share a printer that is connected via USB to a workstation but it is not connected directly to the network via a network cable. There is a WAP nearby
Purchase a portable wireless print server and connect the printer to it using the USB. The wireless print server can receive the print jobs directly from all of the network users
What do you need to install first to install the full sized PCIe network interface card into a low profile 1U or 2U server rackmount chassis
Riser card
What happens when the printer and monitor are using different color profiles
Incorrect chroma display
What causes double or echo images on a printed document
Defective or broken drum unit
How do you fix incorrect chroma display
Calibrate both the printer and monitor to the same standard so that the colors will match
What printer configuration settings controls the overall output characteristics of the print job such as the ink/toner on the paper and the speed of the print process
Quality setting
How can you fix a touchscreen with a cursor that appears to jump to the wrong location and select the wrong icons
Recalibrate the touchscreen within the Windows Control panel
What type of cable is connected to the internal laptop keyboard
Ribbon cable are used to connect internal components in laptops to save space
What type of display panels are used on laptops
LCD panels replaced the CRT monitors
What display works without backlight because it emits visible light
OLED
How do you test a wide variety of operating systems to test software applications being developed without buying a bunch of computers to install all of these operating systems for testing
Purchase a high end computer that has lots of CPU cores and RAM, install a Hypervisor, and configure a virtual machine for each operating system that will be used to test the applications being developed
What printer concept is a page description language that produces faster outputs at the expense of quality
Printer control language PCL is faster but produces lower quality outputs
What is a page description language used in the electronic publishing and desktop publishing
Postscript PS. It is slower but produces higher quality outputs
This is a specialized internet protocol for communication between client services and printers or print servers using the HTTP protocol for data transport
Internet Printing Protocol IPP
What causes flickering in mobile phones
Failing backlight that needs to be replaced by a certified technician
In a laptop or mobile device, the LCD screen requires what to uniformly light up the screen
Backlight source
If the laser printer is printing images at an angle on the pages, what is causing this
Unevenly worn rollers feed pages at an angle and need to be replaced
What size hard drive is used in a desktop computer with a SATA connector
Higher speed hard disk drives are 3.5” and are only used in desktops and some networked file servers using a SATA connector
What size are laptop hard disk drives
2.5” and 1.8”
This is a new set of form factors for an SSD that uses a mini card interface that is faster than a SATA connection
M.2
This means using a network protocol to prioritize certain traffic type over others
Quality of Service
What are dimensions of microATX or mATX
9.6” X 9.6”
What is ATX motherboard’s form factor
12” X 9.6”
What is the Mini-ITX or mITX form factor
6.7” X 6.7”
These networks spans multiple geographic locations such as the Internet and often established with leased telecommunication circuits
Wide area network is usually a DSL, cable connection, fiber connection, or satellite connection in a home network
What happens if the desktop has inadequate airflow
It will shut down at random times
A foul odor from the motherboard indicates what
Swollen capacitor
If a desktop loses power when moved indicates what
Loose power cable
A workstation losing date/time settings indicate what
CMOS battery has failed
If you build a specialized computer for video editing, what 3 main things do you need
Dual monitors
4 TB HDD (10,000 RPM)
Specialized video card
What kind of IP address is 10.3.2.1
Private class A IP address
What kind of IP address is 192.168.2.1
Private Class C IP address
What kind of IP address is 169.264.2.1
APIPA
What cable is mandated to be installed in any handling space
Plenum cable has special insulation for low smoke and low flame characteristics
What is the most widely used interface for hard disks on modern desktop and laptop computers
SATA
This is an external connection type that uses a serial SCSI connection with a D-shaped connector to support up to 800 Mbps of bandwidth
FireWire
Newer iPads have shifted from lighting cable to what cable
USB-C
What type of data should you transmit over UDP
Transmit streaming media such as videos and voip calls since UDP is faster than TCP
What does it mean if a keyboard is acting incorrectly with a few keys
The keyboard has some stuck keys caused by dirt or debris. Use compressed air under stuck keys to dislodge dirt or debris
What network performance metrics is used to represent variable delay experienced by a client when receiving packets from a sender
Jitter is big problem for real time applications like video conferencing, voice over IP, and virtual desktop infrastructure clients
This is a measure of time that it takes for data to reach its destination across a network
Latency
This is the actual measure of how much data is successfully transferred from the source to a destination
Throughput
This is the maximum rate of data transfer across a given network
Bandwidth is more of a theoretical concept that measures how much data could be transferred under ideal conditions
What type of virtualized environment is one where a switch is created that is only usable by VMs
Private network connection
What type of virtualization environment is one where VMs can communicate with the host and other VMs
Internal
What cellular technology is comprised of LTE and LTE-A
4G
What cable type can support speeds up to 10 Gbps for up to 100 meters
Cat 6a is the only cable that can support this
When using a laser printer, what is used to transfer the image to a piece of paper
Toner
What is the first step if the smartphone’s touchscreen is unresponsive
Restart or reboot the smartphone
This is a computer system designed to perform a specific, dedicated function
Embedded system
What is Google’s IP address
8.8.8.8
This is used to host and control access to shared files and folders for the organization
File server
This is a type of file server used to host files for users outside your organization
File transfer protocol server or FTP Server
Which storage type utilizes a NAND chipset mounted directly onto the motherboard instead of a mechanical spinning drive to store data
NVMe is a storage controller mounted on the motherboard
SSDs cannot be mounted on the motherboard. True or false
True
What is the simplest and most efficient way to fix unresponsive apps
Close the app running in the background and restart the app again. This will reduce resource consumptions
What do you do when 2 network devices are assigned the same IP address in the network
Use DHCP to assign IP addresses on the network
If you can ping other workstations but can’t ping the gateway device (router), this indicates what
This means the router is not working
What does a foul smell indicate
A distended capacitor and motherboard should be replaced
When a laptop uses a Micro SATA connection, what form factor is used
1.8” form factor
What frequency does 802.11g operate in
2.4 GHz
What is the default standard, 24-pin connector, used in USB 3.1
USB-C
What are Micro USB used for
Compact and mobile devices such as smartphones, MP3 players, GPS devices, photo printers, and digital cameras
What are the 3 forms of Micro USB
Micro A
Micro B
Micro USB 3
What was Mini USB used for
Introduced with USB 2.0 and used with digital cameras and early tablets
If you print with a laser printer and the printed image smears across the thicker cardstock, what should you do
Turn up the Fuser temperature with thicker paper types such as envelopes, cardstock and labels
This is used to create a physical connection to the network that sends a copy of every packet received to a monitoring device for capture and analysis
Network tap
The 5.0 GHz frequency has more channels available than 2.4 GHz. True or false
True it has more channels giving it less congestion and interference than 2.4 GHz frequency. The 5.0 GHz supports higher data rates than the 2.4 GHz due to lower levels of congestion and interference
Which frequency has a longer wavelength and can cover a longer range using the same power output levels
2.4 GHz
How can you slow down the laptop’s trackpad’s cursor speed in Windows 10
Settings>Devices>Touchpad>Speed
What is a clicking noise associated with in a workstation
A hard drive that is about to fail and first action to perform is a full backup of the hard disk drive before replacing the faulty drive
Does the bare-metal approach have a host operating system
No
What is the operating system that runs the Hypervisor
Host operating system
What is the lowest layer (bottom layer) of a bare-metal virtualization environment
Physical hardware is beneath the Hypervisor and controls access to the guest operating systems
What type of cloud-based solution ensures the cloud provider does not commingle your data with other customer’s data and provides dedicated servers and resources for your company’s use only
SaaS in a private cloud
What is the smallest form factor and its size
Mini ITX or mITX is 6.7”X6.7”
The microATX or mATX form factor is
9.6”X9.6”
What is the ATX form factor
12”X9.6”
Is there a form factor for ITX or specific size for ITX
No
What is a simple square code that can be easily configured by a smartphone to access a preconfigured website address or link
QR code
What should you do if one of the disks in a RAID 5 array with four disks has failed
Replace the failed disk and rebuild the array
If you see streaks of toner across the laser printer’s printouts, what should you do
You should clean the dirty transfer roller to keep the printouts clean and streak free
What requires the use of a physical printer to print a document
Print to Network
What is XPS
XPS is XML Paper Specification and is the Microsoft alternative to PDF
What is a device that connects fiber optics cables to other types of wiring such as Ethernet and phone lines by converting the signal from optical to electrical and vice versa
Optical Network Terminal ONT
If you install a PCIex16 graphics card into a corporate workstation but the computer makes some odd noises when you press the power button, what is the most likely issue
The corporate workstation has 250-300 watts power supply that needs to be upgraded to a 500-750 watts power supply for the new graphics card
What is the port number for SMTP
Port 25
What is the port number for Secure Shell
Port 22
What ports does FTP use
Ports 20 and 21
What is used to connect CAT 5e or above networks in MDF panel or IFD distribution frame
110 punchdown block is used to terminate runs of on premises wiring in a structured cabling system. It provides more spacing between the terminals and eliminates crosstalk between the cables
What is the older punchdown block called
66 punchdown block
What type of network would be created if a wireless access point, a microwave link, and a satellite link were combined in a mesh
Wireless Mesh Network
What type of cable should be used to connect two similar devices (PC to PC, router to router, switch to switch) to create a network
Crossover cable such T568A Ethernet cable on one end and T568B Ethernet cable on the other end
What can you do for slow performing hard when reading or writing and you have eliminated the overheating issue
Run disk repair tool or run the Disk Defragmenter tool for non-SSD devices
What can you purchase and configure to ensure laptop communication remain secure regardless of where you connect from
Purchase and configure a VPN which connects the components and resources of two private networks over another public network. This uses an encryption tunnel to protect data being transferred to and from the laptop to company servers and other websites
What uses a thunderbolt cable and was designed as a competitor to HDMI
DisplayPort uses a thunderbolt cable to connect a monitor to the computer. DisplayPort supports both copper and fiber optic cabling
What was designed to replace the VGA port used by CRT monitors
Digital Video Interface DVI
When automatically receiving updates through the Windows Update service, the server receive driver updates for what
Network Interface Card, graphics cards, and other peripherals. This can accidentally install an incompatible driver that causes network connectivity issues to occur. To fix this, perform a driver rollback to the last known working version of the drivers
What is a storage drive that combines the large storage capacity of an HDD with the faster read/write speed of an SSD
Hybrid Hard Drive constantly monitor the data retrieved from storage and it automatically determines which data you open the most. It places the files that you use most often on the SSD to read/write that data faster
If a PC will not power on and you have determined that the power supply is good, what is the next troubleshooting step you should perform
Check the power connection to the motherboard, the 24-pin ATX connection
If a shared printer on a corporate network receives print jobs from multiple operating systems, how should the network printer be configured
Set up a TCP/IP print server since it will eliminate any compatibility issues associated with using different operating systems and allow the users to send jobs directly to the printer. TCP/IP is considered a high-speed and reliable method for sending print job directly to a printer
What is the most commonly used form factor for a HTPC Home Theater PC
Mini-ITX because they will require the smallest fans or passive cooling, which minimizes the noise produced by the system
What causes the printout on an impact printer to go from darker to lighter as the print head goes from left to right across the page
Defective ribbon advance mechanism
Which cable is the most widely used by modern Android smartphones and tablets
USB-C
If you want to build a system to perform the cracking of a password, hash, or encryption algorithm, what is it important you have
A high-speed dedicated GPU are designed to conduct complex mathematical functions extremely quickly
What technology uses 2.4 GHz or 5.0 GHz frequencies to determine your location indoors based on the signal strength received or the angle of arrival of that signal to the mobile device
Wi-Fi can determine the device’s location within 1-4 meters
What is the use of Bluetooth and Wi-Fi to determine the mobile device’s location
Internal Positioning System
What should you attempt first if you see the error bootable device not found
Verify that either the Molex or SATA cable is connected to the HDD
What is a function that allows you to fully copy an existing virtual machine and its current configuration
Cloning
This is a technology included in Microsoft Windows that can create backup copies or snapshots of computer files or volumes, even when they are in use
Shadow copy
This is a service provider imposed limitation on the amount of data transferred by a user’s account or device over the cellular network
Data cap or bandwidth cap
What was the PATA connector formerly called
IDE aka 40 pin ribbon cable
What causes a mobile device (smartphone or tablet) to become swollen or distended
A defective battery that needs to be replaced
What does VDI stand for
Virtual Desktop Infrastructure centralizes instances for desktops that run on a single server utilizing the resources and performance from a single server
What bandwidth does the D-shaped FireWire connector support
800 Mbps bandwidth
What if a smartphone is used as a mobile hotspot for a laptop and the speed drops from 8761 kbps to 243 kbps
The cellular company is providing fast cellular data connections but throttling the speeds provided by the hotspot
What ports does DHCP use
UDP ports 67 and 68
802.11n supports what frequency or frequencies
2.4 GHz and 5.0 GHz
802.11 ac supports what frequency
5.0 GHz
What can happen if a Cat6a patch cable is rolled over numerous times by a rolling chair and it looks flattened from the abuse
Due to the abuse of the cable being run over repeatedly by the user’s chair, the cable’s shielding could have been damaged and the cable may no longer be made up of the same consistency. This can lead to crosstalk amongst the cable pairs, or even open/shorts of in those cable pairs
If an iPad is old and the battery lasts 30-60 minutes between charges, what should be done
The battery is old and needs to be replaced
What technology could be used in an unlicensed long-range fixed wireless system
Microwave link can be established in the 4.91 GHz to 5.97 GHz unlicensed frequency range using a point to multipoint microwave antenna and transceiver system
What settings must be enabled on a mobile device to embed the GPS position into a photograph when using your device’s camera
Location Services must be enabled to embed GPS position into a photograph
If you install a PCIex8 expansion card into a PCIex16 slot, how fast will the PCIex8 card run
It will run at the x8 speed
If you try to install Hyper-V on a new laptop but keep getting an error during installation that the software cannot be installed, what should you check about the laptop’s processor
Virtualization support
If a laser printer is only printing 60-70 percent of full page color images and then fails, what could be the reason for the print failure of the photos
Lack of memory in the laser printer. A laser printer must load the entire image into memory before it can process it and print the image to the page. If it runs out of memory, it will print part of the image it has processed in memory to the page and then fail
What wiring standard is used with POTS (Plain Old Telephone System)
RJ-11
What is a discoloration of areas on an electronic display that causes a non-uniform use of the pixels that appears as an image remains after the screen is turned off or rebooted
Burn in or image persistence
This network device is used to put each connected network host to its own collision domain
Unmanaged switch operates out of the box without any set up or configuration by switching network traffic based on MAC addresses and putting each switch port into its own collision domain
If the laptop is warm to the touch and the case is bulging to a rounded shape, what is causing this
A defective battery
What are the 3 forms of Micro USB
Micro A
Micro B
Micro USB 3
This gives you the ability to connect 2-64 physical computers to a single set of hardware devices such as keyboard, monitor, and mouse
KVM
What is port 143
IMAP
What connector terminates an RS-232 serial cable
DB-9 connector
These are pre-paid, a la carte, pay per use, or committed offerings
Metered services
This concept allows the virtual environment to allocate memory and processing capacity for a VMs
Resource pooling
What causes a burning smell in a workstation
Bad power supply
This type of network switch allows an administrator to configure advanced networking and security features
Managed switch
PoE Power over Ethernet can support up to how may watts
15.4 W
PoE+ can support up to how many watts
25 W
What is a device that will automatically enter information about a package when it’s read using light and a lens
Barcode reader uses a sensor mechanism to read the intensity of light reflected by the barcode. The reader then reports the number back to an application software, which links it to a product database
This memory relies on temporary storage space on the hard drive that is used when there is insufficient physical memory available to perform a given task
Virtual memory is an area on the hard disk allocated to contain pages of memory. When the operating system doesn’t have sufficient physical RAM to perform a task, pages of memory are swapped to the paging file. This frees physical RAM to enable the task to be completed
What cables can achieve 10 Gbps
CAT 6A
CAT 7
CAT 8
Or fiber optic cable
CAT 5e can handle what throughput
1 Gbps up to 100 meters
CAT 3 can handle what throughput
10 Mbps up to 100 meters
What do you do if the system fails to boot up from the correct drive
Go into BIOS/UEFI setup program and check the existing boot order settings
What happens if you press F8 key during the boot process
It allows the user to choose to boot into Windows in regular or safe mode
What technology is used indoors by companies to locate a shopper’s position in a store and provide them time-sensitive offers or discounts
Bluetooth can determine location within 3-4 meters
What do you need to maximize to run multiple VMs at once effectively
CPU should be multicore and RAM should be 16GB
What wiring standard should be used when installing Ethernet cabling in an office or data center
T-568B are used by most organizations and DOD use T-568A
When you enable Airplane Mode, this disables what on smartphones, tablets or laptops
GPS, cellular, wireless and Bluetooth radios are disabled
This is a tablet-sized device designed for reading rather than general purpose computing
E-reader is used to read digital books and magazines. E-readers use electrophoretic technology to create Electronic Paper Display EPD. EPD has lower power consumption and facilitates high contrast reading in various ambient light conditions
What are the 7 steps of the laser printer
Processing
Charging
Exposing
Developing
Transferring
Fusing
Cleaning
What component in a color laser printer combines the 4 colors before printing it to the paper in one pass
Transfer belt
What does No beep on POST mean
Power supply issue, motherboard problem, faulty onboard speaker
What does continuous beep on POST mean
Problem with system memory modules or memory controller
What does repeating short beeps on POST mean
Power supply fault or motherboard problem
What does 1 Long beep and 1 Short beep on POST mean
Motherboard problem
What does 1 Long beep and 2 or 3 short beeps on POST mean
Video adapter error
What does 3 Long beeps on POST mean
Keyboard issue
What does 2 short beeps on POST mean
POST error and error code shown on screen
What type of wireless network utilizes the 5 GHz frequency band and reaches speeds of up to 6.9 Gbps
802.11ac
What allows a single physical switch to be divided into logical networks
VLAN
What type of IP address should be used for servers to ensure they are easy to find, access, and manage on the network
Static IP address
This is used to create a physical connection to the network that sends a copy of every packet received to a monitoring device for capture and analysis
Network tap
What do you have to do to allow users on the network to have access to the server’s data
Configure file sharing
What record is used for outgoing SMTP and incoming POP/IMAP traffic
MX record
What wireless network utilizes 2.4 GHz and 5.0 GHz frequencies to provide wireless networking at theoretical speeds up to 9.6 Gbps
802.11ax
What is frequency and speed for 802.11g
2.4 GHz and 54 Mbps
What is the frequency and speed for 802.11n
2.4 GHz and 108 Mbps
5.0 GHz and 600 Mbps
What is frequency and speed for 802.11a
5.0 GHz and 54 Mbps
What is the frequency and speed for 802.11b
2.4 GHz and 11 Mbps
What is the frequency and speed for 802.11g
2.4 GHz and 54 Mbps
What do you need when configuring a static IP address
IP address
Subnet mask
DNS server’s IP address
Gateway
An APIPA address is also known as
Link local address
This attack uses multiple compromised computers called zombies to launch the attack against a target
Distributed denial of service DDoS
What display has the best color accuracy when using a 60 Hz refresh rate
IPS has great color accuracy but does not have higher refresh rates sought after gamers
What display has high refresh rates of 120 Hz or 144 Hz and makes them popular with gamers
TN displays
What is a good middle ground between IPS and TN panel displays
VA displays
Which form factor provides a mini card interface used to connect a laptop’s SSD at higher bus speeds than SATA
M.2
What acts as the power supply source for the backlight that uniformly lights up an LCD screen
Inverter
What laptop display requires an inverter
LCD
What network type is used to create a dedicated, independent high-speed network to interconnect and share pools of storage devices to multiple servers
SAN Storage Area Network
Which network standard allows a networking device to provide up to 15.4W of power to connected devices
802.3af
What network standard allows a networking device to provide up to 25W of power to a connected device
802.3at
What connector is used with coaxial cables
F type connector
What can help handle a heavy network load created by sharing large files over the network
Gigabit NIC
What page description language produces faster outputs at the expense of quality
Printer control language
What page description language produces higher quality outputs
Postscript is used in electronic publishing and desktop publishing business
What cables can handle 10 Gbps of throughput
Cat 6a
Cat 7
Cat 8
Fiber optic cable
Cat 5e can operate at what throughput
1 Gbps up to 100 meters
Cat 3 can operate at what throughput
10 Mbps at 100 meters
What type of connector is most often used to connect an older smartphone
Micro USB is a mini version of USB
What is an 8-pin/8-position plug or jack commonly used to connect computers onto Ethernet based LAN and consists of two wiring schemes T568A and T568B
RJ-45
Virtual machine has less downtime than a physical server. True or false
True. A virtual machine can be recreated using another clone or restoration from a backup
What is the backup solution for Office 365
OneDrive
What can create and run virtual machines
Hypervisor is known as a virtual machine monitor. It allows one host computer to support multiple guest VMs by virtually sharing its resources, like memory and processing
What are the two main things you need to include for a dedicated virtualization workstation
Maximum RAM
Multiple CPU cores
What is a Virtual machine installed without authorization
Rogue VM
What is the uncontrolled deployment of more and more VMs
VM Sprawl
This is the concept that allows a virtual environment to allocate memory and processing capacity for a VMs use
Resource pooling
What network connection type will create a switch that is usable only by the VMs
Private
This is a cloud computing offering where a service provider delivers virtual desktops to end-users over the Internet, licensed with a per-user subscription
Desktop as a Service (DaaS)
These resources is used by virtual machines to communicate with other virtual machines on the same network but prevents them from communicating with resources on the Internet
Virtual internal network
If the motherboard’s LED light is unlit, what could be the cause
The 24-pin power cable is not connected to the motherboard
Loud clicking noises when the system boots up are indicative of what
Hard drive is failing or dirty cooling fan
If the system fails to boot up from the correct drive, what should you do
Go into BIOS/UEFI setup program and check the existing boot order settings
What does F8 key during system boot up allow the user to do
It will allow the user to choose to boot into Windows in regular or safe mode
If the power supply fan is faulty, what should you do
Replace the entire power supply
What causes a workstation to continually crash when using certain applications on the Windows system
Failure or corruption of the memory
What does Function + F8 do on a Dell laptop
It allows you to switch from the internal laptop display to an externally connected screen
What is the temporary storage for running applications
RAM
How can you eliminate a noisy, whining sound coming from a computer
Apply a small amount of oil to the fan’s bearings
What causes a computer to keep rebooting itself
A faulty power supply or a computer that is overheating from cooling fan failure
What causes a foul smelling chemical odor from a computer
Distended capacitor
What devices are are resistant to drops since they have no moving parts or platters in them
NVMe or SSD device
