Networking Flashcards
1
Q
what is network
A
group of interconnected computers and devices that shares informations
2
Q
name some network transmission media or network medium
A
twisted pair cable,fiber optic,wireless radio signals
3
Q
network interface(NIC) job
A
converting digital data flowing out of our device into signals that can be transmitted on network medium.
4
Q
IP version 6 addresses of several SUSE Linux systems into a spreadsheet. Which command can you use to obtain this information?
A
ifconfig
5
Q
Forward lookup zone
A
DNS record that matches a hostname to its IP address
6
Q
Which type of motherboard expansion slot has various speeds such as x16 and x32?
A
PCIe
7
Q
Which video cable can send both digital and analog signals?
A
DVI-I
8
Q
DE-15 connector. Which of the following is she referring to?
A
VGA
9
Q
Users are having a hard time remembering the IP address for a commonly used network resource.
The IP address is statically set and the connection is established over port 443.
You know that you have a tool that can solve this issue on your Domain Controller. You log on and configure:
A
DNS
10
Q
What is the first step of the CompTIA troubleshooting methodology?
A
Identify the problem
11
Q
What is PaaS? Platform as a service definition
A
Platform as a service (PaaS) is a cloud computing model where a third-party provider delivers hardware and software tools to users over the internet. Usually, these tools are needed for application development. A PaaS provider hosts the hardware and software on its own infrastructure. As a result, PaaS frees developers from having to install in-house hardware and software to develop or run a new application.
12
Q
Which video cable type can carry video and audio signals?
A
Mini-HDMI
13
Q
A new ticket has come in requesting a server obtain network access to the corporate email server. Which network port would apply?
A
25
14
Q
Many hypervisors require special CPU features
A
Hypervisors often require special features to be supported and enabled by the host CPUs.
15
Q
What technology provides a physical access control when logging into a laptop?
A
Smart card
16
Q
You have been tasked by the Network Team to assign a server a new static IP address. You are receiving an error when attempting to apply the IP 172.256.1.15 with a subnet mask of 255.0.0.0. What is the issue causing the error?
A
The IP address is invalid
17
Q
Which of the following technologies can support Ethernet communication using a building’s power infrastructure?
A
Ethernet over Power
18
Q
Michael Bolton, a customer support specialist, has contacted the help desk where you work. Michael is complaining that sometimes when he prints documents they go to the incorrect printer and he has to walk to another floor in the office building. He has asked you to solve this issue so his documents always go to the printer near his desk. Which of the following options is the BEST step to take next?
A
Verify the default printer settings on the Operating System
19
Q
There is a network (RJ45) port in your office, recently it stopped working. There is no connectivity provided when you plugin to it. The cable and your NIC are known-good, you need to make sure the cable on the back-end of the port is connected but the wiring closet is a disaster. Which tool will assist with this?
A
Tone generator/probe
20
Q
You are setting up a new workstation and decided to use a twisted-pair copper cable to connect the PC to your switch. Which connector would best suit your needs?
A
RJ-45
21
Q
What is the maximum length of a Lightning cable typically used for charging Apple smartphones?
A
2 meters
22
Q
A large company has a nation-wide network, consisting of several smaller networks linked through a VPN and the internet. Which term would best apply to this network?
A
WAN
23
Q
Choose the option that best describes the term boot sequence:
A
The order in which eligible boot devices are checked for an operating system
24
Q
Your employer is in the middle of a remodel and the IT Department is responsible for moving RJ-45 wall jacks to new locations. Which tool can be used verify connectivity of a RJ-45 port after it has been moved?
A
Loopback plug
25
You are called to look at a co-workers computer. It is not powering on, no fans start, there is no sound, and no lights turn on when the power button is pushed. What should you do first?
Check the power cable
26
You are a desktop technician for a small office. You suspect that a user has opened their desktop PC case and made unauthorized changes to the device's hardware. Which of the following can be configured to identify this in the future?
Chassis Intrusion Detection
27
The act of sharing internet connectivity via the use of a cellular device's internet connection is called:
Tethering
28
A customer has come to the help desk where you work and complained their computer is regularly restarting itself without warning. After asking a few questions you have learned this tends to happen about 30 minutes after the computer boots. Based on this information what is the BEST course of action?
Verify the cooling fans are functioning correctly
29
When setting up a VM you are prompted to choose a network configuration. Which of the following options should be chosen if the VM only requires network access to itself and other VMs on the same host?
Internal
30
A Data Scientist at work has come to you stating they need several very large servers in order to conduct an analysis of historical customer data. They will need the servers for about 24 hours, after which they will only need the results of the analysis saved to a file service. What benefit of cloud computing is relevant to this scenario?
On-demand infrastructure
31
An employee has contacted the End User Support Help Desk where you work and is complaining they are unable to view an image sent to them by a 3rd party partner. Instead of the image they see a black square with a small icon in the corner where the image should be. The user reports that her boss sent an email with an image which displayed correctly. What is most likely causing this issue?
Security settings in the email client
32
step of the CompTIA troubleshooting methodology?
Identify the problem
Establish a theory of probable cause
Test the theory to determine the cause
Establish a plan of action to resolve the problem and implement the solution
Verify full system functionality, and, if applicable, implement preventive measures
Document findings, actions and outcomes
33
You are a desktop technician at a large company. A user has been complaining that their desktop has been making clicking noises and tasks like booting up and opening files has become very slow. What is most likely the cause of these issues?
Malfunctioning HDD
34
In a virtualized environment, what technology is used to run the virtual machines?
Hypervisor
35
A customer is explaining their PC's symptoms, but you already know what the issue is. Which is the most appropriate action?
Finish listening to their explanation and then explain the solutions
36
While working as a consultant a client has asked you for a recommendation on cloud models. They want to completely eliminate their on-premise infrastructure and replace it with a more flexible ad-hoc computing model. What type of cloud model should you recommend based on this information?
Public Cloud
37
A user receives the following message when they log in "Windows has detected an IP address conflict". What is MOST LIKELY the issue?
The workstation has a static IP address
38
What type of display technology is most commonly found on eReaders?
E Ink
39
ECC type memory would be most commonly found in which type of device?
ECC memory is most commonly found in servers because a server has a much higher load and fault tolerance requirement than an average computer or device.
40
What type of battery is most common for use in mobile devices like laptops and smart devices?
Lithium-ion
41
What should you do FIRST when receiving a SMART error on boot up?
Backup the disk(SMART or S.M.A.R.T.) is a feature in many Hard Disk Drives (HDD) to detect when the drive is facing imminent failure.
42
What of the following is a true statement regarding M.2 drives?
M.2 drives connect directly to the motherboard
43
Which of the following network standards can operate at two different channel widths on the same spectrum simultaneously?
802.11n
44
Which option BEST describes a security concern when dealing with virtual infrastructure or hypervisors?
Rogue VM
45
A PC you are working on fails to boot it's OS. The OS is installed, but the PC cannot seem to access it. Your first course of action should be to:
Make sure the drive the OS is installed on is the primary boot device
46
You are a Desktop and Laptop Technician for a small computer repair shop. A customer on a limited budget has asked you to upgrade their laptop in order to increase performance. Which of the following components can be easily replaced or upgraded?
RAM
47
Which of the following wireless communication standards requires line of sight in order to operate?
Infrared is a wireless technology that requires a clear path between communication devices. A good example of this, is a TV Remote.
48
An employee with a Windows 10 laptop and a docking station has opened a ticket with the IT Help Desk where you work. The ticket asks if the two monitors at their desk can be swapped because they are not in the correct order when the user docks their laptop. How should you proceed?
Right-click on the desktop, select Display Settings and find the Re-arrange your displays section
49
Which TCP port number is used by Post Office Protocol 3?
110
50
Recently it was discovered that an employee was able boot to an operating system stored on a USB drive instead of the Windows 11 installation managed by your team. You plan on disabling USB boot in the BIOS settings, but what additional option should be used to prevent this from occurring again?
Enable BIOS password
51
Which of the following is the default TCP/IP port for the standard HTTP pr
TCP 80
52
You are an IT Analyst for a large chain of stores. Your department has been asked to evaluate accepting payments through wireless transmission from mobile devices. Which standard technology are they referring to?
NFC
53
Which of the following correctly explains the following statement: > Small mobile devices like smart phones and tablets do not use spinning disks.
True. The moving parts of a spinning disk are too fragile for small mobile devices
54
A 64-bit CPU can be used either with a 32-bit or 64-bit version of the Microsoft Windows operating system.
True
55
Your employer has a large team of developers that focus on developing an important set of internal business applications. In an effort to speed up time to market of bugfixes and new features you have been asked to find a developer focused cloud platform. What type of cloud computing model has a focus on software development?
A Platform as a Service (PaaS) is a cloud model that focuses on simplifying software delivery. A PaaS will try to automate everything but the software development itself, including the creation of application servers, configuration of those servers, network setup and possibly even creation of additional services like databases or file storage servers. The ultimate goal of a PaaS is to be so simple a developer can upload their code and it will run without the need of specialized IT operations teams to install, configure, monitor, etc. the application.
56
What is the last step of the CompTIA troubleshooting methodology?
Document findings, actions and outcomes
57
You are trying to use RDP to control a Windows computer from your office to an accountant's computer in the corporate office building. What port should be opened in the firewalls between the two locations?
3389
58
A technician is working on a PC that utilizes a RAID array. The user of the system has reported that random files are becoming corrupted on creation with no pattern to the activity. One drive in the array is likely failing and causing the read/write failures. Which of the following types of RAID is MOST likely in use?
raid 0
59
Which of the following wireless communication standards requires line of sight in order to operate?
infrared (IR)
60
You want to move from using physical servers to using virtual servers/machines (VMs) while utilizing the same hardware that is currently in place. You need to make sure this is possible, what feature must your CPU support?
Virtualization If your processor does not support virtualization you cannot run VMs on the server.
61
You are experiencing issues on your network and cannot determine where packets are being lost and connectivity is breaking down. You should utilize:
TRACERT
62
How many pins are present in SATA data and power cables?
15 for power and 7 for data
63
Your manager has asked you to purchase new hard drives for the Media Department. They often open large files like high resolution images and video files. You need to choose a drive type that balances performance with costs. Which type would be best?
Hybrid
64
> It is not possible to install a server operating system in a hypervisor running on a desktop operating system
This is false. As long as the Hypervisor can provide the resources (CPU, Memory, etc.) needed to run the OS installed onto the virtual machine there are no limitations. Windows 10, Windows Server, Linux, etc. can all be run virtually regardless of the host OS.
65
You are an engineer at a large company running virtual machines on premise. A cluster of identical VMs is running behind a shared load balancer. Another team has requested that a new VM be created for the cluster and that it should be identical to the existing VMs. What function or tool could you use in this situation?
In the context of Virtual Machines the term "cloning" means to copy an entire virtual machine to create a duplicate.
66
Which keyboard feature allows laptop manufactures to reduce keyboard size and provide small form-factor laptops?
Function key
67
You are an IT Support Specialist for a medium sized company. An executive is traveling overseas and does not want his company phone to cause any data or service related fees. Which of the following solutions will ensure this does not occur?
Disable mobile data
68
What is the fifth step of the CompTIA troubleshooting methodology?
Verify full system functionality, and, if applicable, implement preventive measures
69
A projector in a conference room has been shutting down randomly during meetings. You've checked the operational hours for the bulb and they remain well within it's lifespan. You have also verified the seating and integrity of the bulb. You hear the whir of the fan from the projector from several feet away, but no grinding or knocking. There are no power-saving settings turned on. There are heat-warnings visible on the interface. You suspect that you may need to replace:
The dust filter
70
Which statement most accurately describes RAID 10?
RAID 10 provides data redundancy and faster performance
71
If a system fails to auto-configure the newly added adapter card through PnP, finishing the configuration process requires manual installation of device drivers.
True
72
When installing a new CPU or cleaning a computer case as part of regular maintenance, where is thermal compound applied?
Between the CPU and heat sink.
73
Which cloud computing acronym best describes a solution that replaces hardware, infrastructure and software used for creating, testing and deploying applications and services?
PaaS
74
Which type of cabling is immune to electromagnetic interference?
Fiber
75
While interviewing for an IT position at a large enterprise you are asked if you are familiar with VDI environments. What technology is the interviewing referencing?
A solution for accessing a remote desktop over a client
76
Which protocol uses the well known TCP port 443?
HTTPS
77
What is the maximum transmission speed of Cat 6a cabling at 100 meters?
10 Gbps
78
Which type of fiber optic cabling is best suited for long distance communication?
Single-mode
79
Your business has purchased a facility across the street and will need an office set up there. You've spoken to the city and contractors about establishing network connectivity, but all physical methods of connectivity will require that the street be excavated, which is cost prohibitive. You suggest __________, which would be the most effective and reliable connection in the absence of physical connectivity.
Line-of-sight
80
Due to a recent increase in cellular data usage your employer has released a new policy that says company owned mobile devices are not to be connected to other mobile devices for the purposes of sharing the device's cellular data service. What feature is the policy referring to?
Hotspot
81
Your IT department has access to Network Attached Storage (NAS). You learn that files are accessed from storage technology that combines multiple disk drives into a single logical unit to increase logical volume size, improve performance, or reliability. This combination of individual disk drives to make a single logical unit is know as a:
Redundant Array of Independent Disks (RAID)
82
You are installing cat5 cabling in a large corporate campus. You have measured the distance from a network closet to a new annex building to be 90 meters. According to the cat 5 specification, is the use of a signal repeater necessary?
No, this is below the maximum distance of 100 meters.Category 5 cabling is rated for a maximum of 100 meters.
83
A ticket has been escalated to you regarding a client that is not holding BIOS configurations between shutdowns and is experiencing system-time issues. The first thing you should attempt is:
Replacing the CMOS battery
84
What connector type is utilized by Thunderbolt 3?
USB Type-C
85
Which option is a reversible connector based on an open specification?
USB C.USB C is an open specification used by many mobile devices like phones, tablets and laptops. It is an open specification because it is not proprietary to any single company and instead can be used in products by any vendor. A key feature is USB-C is that it is reversible while previous USB versions were not.
86
After installing a new integrated component such as a Network Interface Card (NIC) on a newly assembled computer system you should first:
Update with the latest driver in Device Manager
87
You work for Netflix and need to setup a new RAID array for storing video files. These files will be streamed to end user, both speed and avoiding data loss are very important. Which RAID should be used to gain the highest redundancy and speeds?
RAID 10
88
Which of the following protocols operates over port 143 by default?
IMAP, Internet Message Access Protocol (IMAP) uses port 143
89
What wireless protocol is most likely to be used to create a WPAN?
Bluetooth
90
What tool would you use to connect an ethernet cable to a patch panel?
Punch down tool
91
You have been assigned to configure a new enterprise wireless router for your employer's network. Which of the following settings should be changed first?
Manufacturer password
92
Which of the following device types would have a feature for permitting or blocking TCP and UDP traffic on a particular port?
Firewall
93
True or False: A benefit of using a cloud backup service is that data from a mobile device can be easily recovered if a mobile device is lost or stolen.
True
94
What type of cloud type is used by multiple organizations that have overlapping or common requirements and goals?
Community Cloud In cloud computing a Community Cloud is an environment shared by a limited set of organizations that are working together
95
What type of desktop operating system cannot be installed and run as a guest of a Linux based host operating system?
macOS Due to licensing agreements macOS cannot officially be run on anything but approved Apple
96
A user complains that he can no longer see any wireless networks, connect to his bluetooth headset, or make phone calls on his Android phone. Which of the following options would best address these issues?
Disable Airplane Mode
97
True or False: UTP cabling features a fire-retardant jacket.
Unshielded Twisted Pair (UTP) is twisted pair cabling that does not have any sort of cable shielding. Shielded Twisted Pair (STP) does contain additional shielding, however it is for reducing electromagnetic interference and does not provide any fire protection.
98
Which of the following choices is used as a standard measurement when referring to printed media?
You selected this option
Contrast Ratio
Dots per Inch (DPI) is the standard measurement used for printers. It refers to the amount of dots that are placed by the printer in a one inch space. This is similar to Pixels Per Inch (PPI), which
99
Why would you use plenum rated cables when installing new cabling in a data-center?
Reduction in hazardous fumes in the event of a fire
100
Which of the following is the default TCP/IP port for the standard HTTP protocol?
TCP 80
101
A PC you are working on fails to boot it's OS. The OS is installed, but the PC cannot seem to access it. Your first course of action should be to:
Make sure the drive the OS is installed on is the primary boot device
102
What type of connector is used for internal hard drives and has 40 pins?
IDE (also called Parallel ATA) has 40 or 80 pins but the 40 pin was far more common.
103
Which of the following ports belongs to a standard protocol used to query data from an Active Directory server?
You selected this option
23
389
104
A customer has contacted the End User Support Desk where you work. They are complaining they are receiving an error when trying to print and browse the internet stating they don't have network connectivity. After remoting onto their machine you run ipconfig /all and see an assigned IP address of 169.254.20.34. Of the following options, what is MOST LIKELY the issue?
Misconfigured or unreachable DHCP
105
Which USB standard supports up to 5 Gigabit per second transfer speeds?
3.0
106
A customer is not able to connect to any websites. Which of the following commands should a technician run FIRST to identify the issue?
IPCONFIG
107
You work as an End User Support Technician and your employer is preparing to purchase new desktop machines for all employees in the office building. The CEO is cheap and wants to pack as many people into the existing office space as possible over the next year. The number one priority is avoiding the need for adding additional office space. What type of form factor would use up the lowest footprint in the office and allow the CEO to pack everybody in like sardines?
mini-ITX
108
You are a Server Administrator at a small company. Company policy dictates that all remote connections must be encrypted and accessed using some form of authentication. Which of the following will allow a user to upload a large file from home, while adhering to company policy?
SFTP (SSH File Transfer Protocol) is a protocol for securely uploading files to a remote server. SSH alone is not enough to upload a file and is incorrect. SSH provides the encryption & authentication but does not meet the requirement to upload a file. As SFTP builds upon SSH with functionality for file upload it is the correct answer.
109
Which of the following network topologies provides the most redundancy to protect against network outages?
Mesh
110
Which of the following is NOT a BUSINESS benefit of cloud computing?
Virtually infinite scalability of infrastructure.Scalable infrastructure is a technical benefit and not a business benefit of cloud computing
111
You need to configure a SOHO network to provide IP Addresses to devices on the network. Which feature should be enabled?
DHCP
112
Which of the following options is synonymous with the term Hypervisor?
Virtual Machine Monitor (VMM)
113
You are a Desktop Technician in a company's IT Department. You need to find the hardware specifications of a desktop, however the device does not have an operating system installed. Which of the following options will display this information?
BIOS
114
Which option supports Hardware-Assisted Virtualization (HAV)?
VT-x is a technology from Intel that allows Hardware Assisted Virtualization (HAV). HAV enables virtual hosts to use processors directly in an isolated manor.
115
Rank the following starting with the fastest and ending with the slowest: IDE, SATA, SCSI
SATA, IDE, SCSI
116
What special operating system level configuration is necessary when running Windows 10 as a virtual machine?
No special configuration is needed
117
A user reports that their printouts contain a shadow of the previous image. Which of the following is MOST likely the cause?
Fuser assembly
118
What is the name of the native hypervisor found on Windows 10 Pro and higher operating systems?
Hyper-V
119
The ability to add or remove a component without causing an interruption or powering off a system is known as what?
Hot swapping
120
Which of the following options can be used as a storage device to boot an operating system?
USB Drive
121
Which of the following cable types uses twisted-pair copper cabling?
Cat 6
122
Which of the following is a industry standard that provides similar functionality to BIOS?
UEFI
123
What cooling mechanism provides the lowest temperatures for internal PC components?
Liquid Cooling
124
What cable type is used for internal hard drives of desktop PCs?
SATA
125
What integrated circuit types best defines the core functionality and capabilities of a motherboard?
Chipset
126
Which of the following cloud computing models can be used to replace desktop based applications and programs with cloud based options?
Software as a Service (SaaS) is a cloud model that replaces locally used applications and programs with a cloud based, centrally hosted equivalent. An example of this is using Microsoft Office 365's web based email and calendar solutions instead of installing the Outlook program locally. Typically SaaS applications are served as web solutions compatible with any modern browser.
127
What is the maximum transmission speed of Cat 5e cabling?
1000 Mbps
128
A type of Central Processing Unit (CPU) architecture where a single physical CPU contains more than one execution core on a single die or chip is known as:
Multicore
129
You have been tasked by the Network Team to assign a server a new static IP address. You are receiving an error when attempting to apply the IP 172.256.1.15 with a subnet mask of 255.0.0.0. What is the issue causing the error?
The IP address is invalid
130
What type of cabling uses plastic or glass to transmit data using light?
Fiber
131
What is the maximum transmission speed of Cat 6 cabling at 55 meters?
10,000 Mbps
132
You are having issues consoling to a Linux server hosting a database of customer information from your home machine, you think the problems are being caused by a blocked port on your firewall. Which port on your firewall is likely to cause this sort of an issue if blocked?
Port 22
133
What type of network switch supports plug and play style usage and does not support custom configurations?
Unmanaged
134
You are installing cat5 cabling in a large corporate campus. You have measured the distance from a network closet to a new annex building to be 90 meters. According to the cat 5 specification, is the use of a signal repeater necessary?
No, this is below the maximum distance of 100 meters
135
You are a Network Technician for a large IT Support Company. A client has called in saying that they switched their SOHO network to a fiber connection at the recommendation of their ISP. They have stated that they have not seen a gain in internet performance and that their ISP says it is an issue on the customer's network. What should you do next?
Help the customer determine the possible bottlenecks in their SOHO network
136
For security reasons, you've created a script on a server that monitors if non-domain users have been added to the local administrators group. You've added logic to the script that sends an email out every time the script is run.
Your script utilizes SMTP for its reporting. Select the port that you will need to ensure is open for your script to send emails.
25
137
Which of the following ports belongs to a standard protocol used to query data from an Active Directory server?
389 Lightweight Directory Access Protocol (LDAP) is an open-standard protocol used to query directory based databases such as Active Directory. LDAP uses TCP 389 by default.
138
Which of the following properly describes the purpose of a KVM?
Allows for one set of peripherals to control multiple computers
139
You are using the SMB protocol to share files and printers on a Windows network. Which of the following ports is used by the SMB protocol?
445
140
What is the purpose of the No-eXecute (NX bit) technology used in Intel CPUs?
Malware protection
141
When reviewing different cloud models and vendors the security team at your employer suggests the company opt for a private cloud vendor. They state that because public cloud vendors place multiple customers data and computing resources on the same physical infrastructure there is a higher security risk. What term is the security team referencing?
Resource Pooling
142
Your CIO has asked you to investigate cloud computing vendors. You have been tasked to find vendors that offer virtual servers on demand and allow administrative access to the servers so they can be configured with your employer's software as needed. Which cloud model is your CIO looking for?
Your CIO is looking for Infrastructure as a Service (IaaS). This model aims to automate the provisioning and creation of infrastructure like physical servers, networks and virtual machines. Most commonly an IaaS vendor will provide a virtual machine with a pre-installed operating system and provide access to you to configure based on your need
143
Which of the following allows network prioritization based on packet contents?
Quality of Service is a networking technique where certain types of traffic are given higher priority than less important traffic. Just like emergency vehicles are given priority on roads, business critical traffic is given higher priority than non-critical traffic.
144
Which of the following options is a benefit of a multi-core processor?
Multiple threads can be handled simultaneously
145
A client has a static website that needs to be hosted publicly for their customers to view. After talking with them you determine you should purchase an on-demand server from a cloud platform and install an Operating System and web server to host the HTML files. Which acronym best describes the service you have purchased
Infrastructure as a Service (Iaas) is a common alternative to managing a data-center or on-premise servers. With IaaS you can request virtual servers on-demand, but those servers are still your responsibility to manage from the OS level and up.
146
Which option is a cloud model according to the CompTIA A+ objectives?
Community
For CompTIA A+ you need to know: Community Cloud, Private Cloud, Public Cloud and Hybrid Cloud models.
147
Which of the following provides constant power to a motherboard, allowing it to retain configuration data for the BIOS?
CMOS Battery
148
What of the following is a true statement regarding NVMe?
NVMe is a protocol for accessing data
149
What is the maximum transmission speed of Cat 6 cabling at 55 meters?
10,000 Mbps
150
You are a desktop technician at a large company. A user has been complaining that their desktop has been making clicking noises and tasks like booting up and opening files has become very slow. What is most likely the cause of these issues?
Malfunctioning HDD
151
Which of the following cabling types has fire-retardant properties?
Plenum cabling is special cabling used in the plenum spacing of buildings. It has special fire-retardant properties to reduce fire's ability to spread
152
You just got off work and decide to relax with some video games when suddenly your PC won't boot. When you turn it on you get an error "No OS found on bootable disks". Which of the following options is the MOST likely to solve this issue?
Repair the MBR
153
Which type of Ethernet cable can be used for connecting two PCs without the use of a router?
Crossover cables can support direct communication between two computers without the need for an intermediate device. Keep in mind this just refers to the cable, the computers still need to be correctly configured for this to work.
154
Which of the following allows devices to operate without requiring a separate power source?
Power over Ethernet (PoE) allows devices to use an ethernet connection as a power source, most commonly found in IP phones. The ethernet cable provides the power for the device to operate as well as network connectivity.
155
Your supervisor has asked you to bring her a DE-15 connector. Which of the following is she referring to?
VGA
156
You are a Server Administrator at a small company. Company policy dictates that all remote connections must be encrypted and accessed using some form of authentication. Which of the following will allow a user to upload a large file from home, while adhering to company policy?
SFTP (SSH File Transfer Protocol) is a protocol for securely uploading files to a remote server. SSH alone is not enough to
157
Which of the following is a form of wireless network that uses cellular communication technologies like 4G and LTE?
WWAN
Wireless Wide Area Network (WWAN) is a wireless network type that uses the same technology used by cellular
158
You are using the SMB protocol to share files and printers on a Windows network. Which of the following ports is used by the SMB protocol?
445
159
Which of the following protocols operates over port 143 by default?
IMAP
160
Which of the following options would typically be associated with encryption?
TPM (Trusted Platform Module) is a standard cryptoprocessor used to store cryptographic keys
161
You are using the SMB protocol to share files and printers on a Windows network. Which of the following ports is used by the SMB protocol?
445
162
Which of the given options is an advantage of cloud computing that BEST matches the description "The ability to scale up and down based on demand and resource usage"
Rapid elasticity
163
Which type of Ethernet cable can be used for connecting two PCs without the use of a router?
Crossover cable
164
Which of the following is a form of wireless network that uses cellular communication technologies like 4G and LTE?
Wireless Wide Area Network (WWAN) is a wireless network type that uses the same technology used by cellular networks like LTE, 5G, etc. It is used for larger networks like one spanning a city or large campus.
165
Which of the following tools can verify an Ethernet cable's wires are in the correct order?
Cable tester
166
A user receives the following message when they log in "Windows has detected an IP address conflict". What is MOST LIKELY the issue?
The workstation has a static IP address
167
Users at EvilCorp™ are complaining the printer in Building 5 of Area 51 is producing pages that are covered in a black dust. What is MOST LIKELY the issue?
Fuser
168
Your CIO has asked you to investigate cloud computing vendors. You have been tasked to find vendors that offer virtual servers on demand and allow administrative access to the servers so they can be configured with your employer's software as needed. Which cloud model is your CIO looking for?
Your CIO is looking for Infrastructure as a Service (IaaS). This model aims to automate the provisioning and creation of infrastructure like physical servers, networks and virtual machines. Most commonly an IaaS vendor will provide a virtual machine with a pre-installed operating system and provide access to you to configure based on your needs.
169
You are helping a friend with a new wireless router. They are complaining that certain areas of their apartment have much slower internet than others. They live in a dense area with many other apartments in WiFi range. What tool could help you troubleshoot this issue?
A WiFi Analyzer is a mobile device (or software on a mobile device) that scans and tracks WiFi signals. It can help you find areas where a signal is low, and which wireless channels are being used the most. With this information you can reconfigure or reposition your WiFi Access Point for the best speeds and reliability.
170
What is the term used to describe the binary value used in RAM and RAID storage to determine if data has been corrupted?
A parity bit or parity check is used by some types of RAM and RAID configurations to verify if data has been corrupted.
171
Which of the following tools can verify an Ethernet cable's wires are in the correct order?
Cable tester
172
True or false: There are two data transfer modes to USB 1.1: Low-Speed and Full-Speed.
true,USB 1.1 Supports Low-Speed and Full-Speed modes. Low-speed is typically used for peripherals that do not require high rates of data transfer, such as game controllers. Full-speed is used for anything requiring data transfer.
173
Failure of a single disk in a RAID 1 array will not result in permanent loss,
true
174
Which of the following will be the first to receive heat leaving a processor?
Thermal paste
175
What is a drawback of using integrated graphics?
Slower performance
