Jason Dion - CompTIA A+ 1001 Exam Prep #2 Flashcards
- You are configuring a SOHO Network and only denying Specific IP Addresses from accessing the Network while allowing any IP Addresses not found on the List. Which of the following should be implemented?
Allow List
Port Forwarding
MAC Filtering
Blocklist
Blocklist
EXPLANATION:
Blocklist is a Form of Protection where only the items identified specifically on the List are Blocked, whereas all others are allowed. For example, if you create an Access Control List that relies on Blocklisting, it would allow every IP address not found in the Allow List.
Allow List is a form of Protection where only the items identified specifically on the List are allowed, whereas all others are denied. For example, if you create a Access Control list that relies on an Allow List, it would block every IP address that is not found in the Allow List.
MAC Filtering is the application of an Access Control List to a Switch or Access Point so that only clients with approved MAC Addresses connect.
Port Forwarding allows a Router to take requests from the Internet for a particular application and send them to a designated host on the LAN.
- Which of the following is categorized as a Public IP Address?
- 254.12.64
- 30.15.12
- 120.32.41
- 168.0.2
11.120.32.41
EXPLANATION:
To communicate on the Internet, a Host must obtain a Unique Public IP Address. Typically, this is allocated by an Internet Service Provider.
APIPA Address = 169.254.x.x
Private IP Address = 10.x.x.x, 172.16-31.x.x, or 192.168.x.x)
Local Host IP = 127.0.0.1
Dion Training has asked you to consult on the Installation of their New File Server. The Current Server consists of a RAID5 Array with 3 1TB 7200 RPM Hard Disk Drives. Due to the increased reliance on the new file server, you have been asked to recommend a RAID solution that will help ensure there is NO unscheduled downtime, NO data loss, and increased speed/performance over the current file server. Based on these requirements, which of the following RAID solutions should you recommend?
RAID0
RAID1
RAID10
RAID5
RAID10
EXPLANATION:
RAID10 is the best solution to meet all these requirements since it provides a fully redundant RAID with both the advantages of mirroring and disk striping.
RAID 5 provides redundancy, but it will not improve the speed/performance over the current file server in use since it was also a RAID5. Also provides Block-Level striping with distributed parity to provide redundancy using a minimum of 3 disks.
RAID0 provides disk striping (Speed/Performance) but no mirroring with a minimum of two disks.
RAID1 provides mirroring (Redundancy) but not disk Striping with a minimum of two disks.
Your boss wants to be able to remotely print from her laptop and smartphone while away from the office. She asks you to set up a method to ensure that she doesn’t have to go back to her office to print a document. Which of the following should be configured to meet this requirement?
WIFI Printing
Integrated Print Server
Cloud Printing
Bluetooth Printing
Cloud Printing
You are installing a New Projector in a customer’s home theater room. After connecting the Projector and powering it on, you notice some odd debris displayed on the screen. Which of the following should you do to correct this?
Adjust incorrect color pattern.
Clean artifacts on the protective glass.
Degauss the projector
Replace the bulb with correct lumens.
Clean artifacts on the protective glass.
Which of the following components would require you to de-solder the old part from the laptop to install and solder a new one?
Screen
Cellular Card
Battery
DC Jack
DC Jack
- Dion Training has decided to use a PaaS solution to host their training courses. The service charges are based on the number of students enrolled in the courses each month. Which type of cloud computing concept is being demonstrated by this pricing strategy?
Metered Service
Resource Pooling
Rapid Elasticity
Synchronization Apps
Metered Service
EXPLANATION:
Resources are measured through a Metering on a per-use basis. The Metering measurement is based on the type of resources such as storage, processing, bandwidth, or active users. The Metering mechanism should be accessible to the customer via a reporting dashboard, providing complete transparency in usage and billing. Metered services are pre-paid, a-la-carte, pay-per use, or committed offerings. A Metered Service like a database may charge its users based on the actual usage of the service resources on an hourly or monthly basis. Example: Dion Training used the AWS Lambda serverless product in some of our automation. This Service charges us $.20 for every million requests processed.
Resource Pooling refers to the concept that allows a virtual environment to allocate memory and processing capacity for a VMs use.
Rapid Elasticity is used to describe scalable provisioning or the capability to provide scalable cloud computing services. Rapid elasticity is very critical to meet the fluctuating demands of cloud users. The downside to Rapid Elasticity implementations is that they can cause significant loading of the system due to the high resource number of allocation and deallocation requests.
Using a Synchronization App can allow the files to be stored on both the laptop and the cloud service while maintaining the latest versions in both places. This allows a user to synchronize content between all of their own devices, as well as share the cloud storage content with other users. Multiple users can simultaneously access the content to work collaboratively, or they can access it at different times. Each users changes are typically marked with a flag or color highlighting to indicate who made changes to what content.
Which of the following Ports is used for the request of distribution of DHCP configuration information?
80
53
162
67
67
A Customer contacts the Service Desk because their laptop will not power on when plugged in, and the battery is dead. The service desk replaces its battery, connects it to a different power adapter, and the laptop works all day until the battery runs out. Now, the laptop won’t turn on, and the battery won’t charge. Which of the following do you recommend to solve this issue?
Replace the Power Adapter
Replace the Battery
Replace the DC Jack
Connect the laptop to a 220v Outlet
Replace the DC Jack
An employee at Dion Training complains that their smartphone is broken. They state that it cannot connect to the internet, nor can it make or receive phone calls and text messages. You ask them to start up their music player on his phone, and it opens without any issues. It appears the common issue has to do with the device’s network connectivity. Which of the following is MOST likely the problem with this smartphone?
The Cellular Radio in it is broken.
The VPN password was entered incorrectly.
The Bluetooth connection is disabled.
Airplane mode is enabled on the device.
Airplane mode is enabled on the device.
Which of the following protocols operates over port 143 by default?
IMAP
RDP
POP3
HTTPS
IMAP
A User wants to print a spreadsheet horizontally on a piece of paper instead of vertically to fit more columns on a single page. What settings should the user enable on the printer for this print job to achieve this result?
Duplex
Collate
Orientation
Transparency
Orientation
PBQ Question - Motherboard Pic of CMOS battery…
You are working for a logistics company that needs to get a device that will automatically enter information about a package when it is read using light and a lens. Which of the following devices should you install to BEST support this requirement?
Barcode Reader
Digitizer
Touch Screen
Webcam
Barcode Reader
Jason’s iPad only had 12% battery remaining at the end of the day, so he connected his iPad to the lighting cable and the wall adapter last night before going to bed. In the morning, Jason tried to turn on the iPad, but it appeared to be completely powered down, and the battery was drained. Jason connected the lighting cable to his iPhone and the iPhone began charging. Which of the following is MOST likely the reason that the iPad didn’t charge overnight?
Defective AC Adapter
Defective Charging Port on the iPad
Defective Lighting Cable
Defective Battery
Defective Charging Port on the iPad
You are troubleshooting a computer that will not boot. After gathering information from the client about the Symptoms they have experienced, you believe the power supply may be faulty. You used a power supply tester to determine if the power supply provides the right amount of output voltage and has determined the power supply is only providing 50% of the voltage that it is supposed to provide to the workstation. What is the next step you should perform according to the CompTIA troubleshooting methodology?
Establish a plan of action to resolve the problem and then implement the solution.
Identify the problem.
Verify full system functionality and, if applicable, implement preventative measures.
Establish a theory of probable cause (question the obvious)
Establish a plan of action to resolve the problem and then implement the solution.
You work for the city’s Department of Motor Vehicles (DMV). There are five DMV locations spread out across the city that you have been asked to connect with a Network. You have created a list of requirements for this Network, including that it must be wired and support at least 1 Gbps of bandwidth. Which of the following network types would MOST likely be used for the DMV to connect their internal networks across the city securely?
LAN
WAN
MAN
PAN
MAN
A Client has a workstation with RAID5 configuration and reports that slower than normal performance occurs when reading/writing files to the RAID. You run a diagnostic program against the RAID, and the system passes all of the diagnostic tests without any issues. While you are running the tests, though, you heard clicking noises coming from the RAID. Which of the following is the MOST likely cause of the slow performance being experienced by the Client?
Hard Drive
SSD
RAID Controller
Cooling Fan
Hard Drive
EXPLANATION:
Based on the symptoms described the RAID itself is fully functional, so the RAID controller is not causing any problems. This could be caused by a failing hard drive or the system overheating due to the slow performance. Since there is a clicking noise, this is most likely a hard drive failure since a cooling fan makes a whirring or grinding noise instead. Therefore, we can assume the RAID is made up of magnetic hard drives, and one of those hard disks is starting to fail. To replace the hard drive, you need to find a comparable drive that will work in the array, reboot the computer, and enter the RAID setup program to rebuild the array after replacing that hard drive. If you use a RAID 1, RAID 5, or RAID 10, the system will continue to operate normally, but with slower performance, until you replace the hard drive and rebuild the RAID.
During a disaster recovery, which of the following statements is true?
A Virtual Machine has more downtime than a Physical Server.
A Virtual Machine has less down time than a Physical Server.
Both a Virtual Machine and a Physical Server has the same downtime.
A Virtual Machine cannot be used for redundancy or load balancing.
A Virtual Machine has less down time than a Physical Server.
Which of the following cables was a proprietary cable used in many iPhones and iPads?
Mini USB
USB-C
Micro USB
Lightning
Lightning
Which of the following cables supports both charging and data transfer with a non-directional connector inserted into a port on the device?
USB-A
Micro-USB
Mini-USB
USB-C
USB-C
Jason’s Cellphone company allows him to use his smartphone as a wireless hotspot with his laptop when traveling. Jason notices that if he runs a speed test from his smartphone, the cellular connection is 8761 kbps. If he runs the same speed test connection from his laptop connected to his cellphone over its wireless hotspot, the speed drops to 243 kbps. Which of the following is the MOST likely cause for the drop in the speed tests results?
The laptop is out of range of the smartphone’s hotspot.
The SSID for the wireless hotspot is not being broadcast
The Wireless hotspot feature is throttling the cellular connection speed.
The smartphone’s RFID signal is low.
The Wireless hotspot feature is throttling the cellular connection speed.
Which cellular technology utilizes New Frequency bands to reach proposed speeds of up to 70 Gbps?
4G
3G
5G
LTE
5G
EXPLANATION:
5G Cellular technology is made up of 3 different types: low-band, mid-band, and high-band mmWave technology. Low-band 5G reaches and average speed of 55 Mbps with a theoretical speed of 150 Mbps. Mid-band 5G reaches an average speed of 150 Mbps with a theoretical speed of 1.5 Gbps. High-band 5G reaches an average speed of 3 Gbps with a theoretical speed of up to 70 Gbps.
4G Cellular Technology is made up of LTE-A.
LTE (Long Term Evolution) is packet data communications specification providing an update path for both GSM and CDMA2000 cellular networks. LTE has a theoretical speed of 150 Mbps and a real-world speed of around 20 Mbps. LTE Advanced (LTE-A) has a theoretical speed of 300 Mbps and a real-world speed of around 40 Mbps.
Your college has several campuses located across the city. Within each campus, the buildings are interconnected with a campus area network. If you connect each of the campuses across the city, what type of network would this become?
PAN
LAN
MAN
WAN
MAN
Dion Training has a single Switch that services every room within its offices. The Switch contains 48 Ports, but Jason wants to divide the ports based on the functional areas, such as Web Development, Instruction Support, and Administration. Which technology should Jason utilize to divide the Physical Switch into 3 Logical Divided areas?
NAT
VPN
DSL
VLAN
VLAN
Which of the following technologies 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 the tag to the reader?
NFC
Z-WAVE
Zigbee
RFID
RFID
EXPLANATION:
RFID Tags contain an RFID chip programmed with the asset data. This is read wirelessly by an RFID (Radio Frequency Identification) reader. RFID is one-way communication mechanism, whereas NFC is two-way Communication.
NFC (Near Field Communication) is a set of communication protocols that enable two electronic devices, one of which is usually a portable device such as a Smartphone, to establish communication by bringing them within 4cm of each other. This is commonly used for contactless payment systems, transferring contacts, or transferring a file from one device to another.
Zigbee is a low-power wireless communication open-source protocol used primarily for Home Automation. Zigbee uses radio frequencies in the 2.4 GHz band and a mesh topology.
Z-Wave is a low-power wireless communications protocol used primarily for Home Automation. Z-Wave uses radio frequencies in the 800 MHz and 900 MHz frequency ranges.
- What is the MOST common connector type used when connecting a USB cable to the back of a Printer?
Type A
Micro-USB
Mini-USB
Type B
Type B
EXPLANATION:
The most common USB connector used to connect a Printer is USB Type B. This connector has a large square-shaped male connector that is connected to the rear of the printer.
USB Type A Connector is often used to connect to the workstation or computer itself. This question specifically asked which connector is being attached to the Printer.
Micro USB is miniaturized version of the USB interface developed for connecting compact and mobile devices such as Smartphones, MP3 players, GPS devices, and digital cameras.
Mini USB was introduced with USB 2.0 and was used with digital cameras and early tablets.
- You have just finished building a Windows Server, installing its Operating System, updating its security patches, formatting a dedicated data partition, and creating accounts for all of the company’s employees. What is the next thing that must be configured to provide users with the ability to access large multifunction devices across the network?
Audit Logging
File Sharing
Print Server
RAID Storage
Print Server
EXPLANATION:
Most of the Option provided are reasonable next steps, but the question specifically states that you want to allow the users to access multifunction devices on the network. This indicates that the users will need access to a Print Server since Printers are Multifunction devices. A Print Server is a type of Server that connects printers to Client computers over a computer network. Print Servers act as intermediary between the computers and printers by accepting print jobs and then sending them to the correct printer when it is ready to accept new jobs.
A File Server is used to host and control access to Shared Files and Folders for the Org.
Susan, an Executive at Dion Training, will be traveling to Italy for a conference next week. She is worried about remaining connected to the internet while overseas and plans to use the WIFI in her hotel room and the local coffee shop with her laptop. Which of the following should she purchase and configure before leaving for Italy to ensure her communications remain secure regardless of where she is connecting from?
Local SIM card for her smartphone
VPN
International data roaming plan on her cellphone.
Local mobile hotspot
VPN
- A Customer recently purchased a touchscreen laptop to use for her schoolwork. It has been working well for about 3 weeks, but today she has brought it into your store for repair because it is not working properly. When she touches an icon on the screen, the program fails to load. You look over the laptop, and the screen appears to be fully intact with no dark blobs or spider web cracks in the panel. You attempt to operate the laptop using the touchscreen, but it appears non-responsive to your touch. You can, however, click on the icons using the laptops touchpad without any issues. Wich of the following components MOST likely needs to be replaced?
GPU
Inverter
Digitizer
LCD Panel
Digitizer
EXPLANATION:
The Digitizer is a touch-sensitive glass panel covering the LCD in a touchscreen assembly. The Digitizer is used to convert touch events to digital signals that can be interpreted as different types of input. The digitizer can be touched and inspected without taking apart the device. A LCD panel is a type of display technology where the image is made up of liquid crystal cells controlled using electrical charges. The LCD Panel is backlight by a cold cathode fluorescent (CCFL) bulb. LCD Panels are used on laptops and have replaced CRT monitors as the main type of computer display screen for desktops as well. The LCD screen is the panel that is inside the device, which displays the image. You cannot get to the LCD without taking the device apart first. When only the touchscreen is broken, you should still see what is happening on the screen, and the screen should still function as normal. When only the LCD is broken, you can still use the touchscreen, but the panel will have dark blobs or spider web cracks or both. When both LCD and touchscreen are damaged, you may still be able to use potions of the touchscreen, and some parts of the LCD may display the image, but you will incur obvious difficulties in using the device as normal.
The Inverter (Also know as the Inverter Board, Screen Inverter, or LCD Inverter) is part of the laptop’s display assembly. The Inverter is a small green board attached to the base of the LCD panel. In a laptop computer, the LCD screen relies on a backlight source to uniformly light up the screen, and the inverter acts as the power supply for this lighting source. If the inverter is faulty, the display will be too dim to easily see without an external light source like a flashlight.
A Graphics Processing Unit (GPU) is a microprocess used on a dedicated Video Adapter Cards or within a CPU with integrated graphics capability to handle the mathematical calculations required to create immersive and 3D graphics.
Rick, a computer tech, was contacted by a customer who wants to reduce his office computer’s footprint so save space. Which of the following cases is the Smallest Form Factor?
ATX
ITX
mATX
mITX
mITX
Which of the following types of connectors are used to terminate a Serial Cable for an External Modem?
RJ-45
DB-9
RJ-11
LC
DB-9
EXPLANATION:
RJ-11 Connector is used to Terminate Cables used for Phone Lines.
RJ-45 Connector is used to Terminate a Copper Twisted-Pair Ethernet Cable.
ST, SC, LC, or MTRJ Connector is used to Terminate Fiber Optic Cables.
Which of the following laptop displays requires an inverter?
Plasma
LCD
OLED
LED
LCD
You are troubleshooting a workstation for a customer. The workstation will not boot. When it is powered on, an error message of “OS Not Found” is displayed on the screen. What is the MOST likely solution to fix this error?
Replace the HDD with an SSD
Perform CHKDSK
Repair the MBR
Repartition the Hard Disk
Repair the MBR (Master Boot Record)
- You have been asked to setup the email on a Corporate laptop. The employees of Dion Training are only allowed to receive their email on one device. The email should be removed from the Server’s mailbox whenever the client connects to the Server to download the message. Which of the following mail protocols should you configure to allow an employee to receive their mail on their laptop and meet these requirements?
SMTP
IMAP
POP3
HTTPS
POP3
EXPLANATION:
POP3 is downloaded to the device and removes mail from the Server’s mailbox by default.
IMAP does not remove the mail from the Server when the client connects but instead maintains a copy on the server indefinitely until the user forces it to be deleted.
SMTP is used to send emails, not receive.
HTTPS is used for SECURE Web Browsing, not receiving emails.
- What type of cable should be used to connect a laptop directly to another laptop to form an Ethernet network?
Patch Cable
Serial Cable
Crossover Cable
Straight-Through Cable
Crossover Cable
EXPLANTION:
Crossover Cable should be used to connect 2 SIMILAR Devices (PC to PC, Router to Router, Switch to Switch)
Straight-through or Patch Cable is a Network Cable that uses the same wiring standard on both ends such as T568A or T568B.
Serial Cable is a Data Cable that transmits data a single bit at a time like DB-9.
