IT CertificationsComprehensive Study Set

Comptia A+ 220 101

101 questions across 0 topics. Use the find bar or section chips to jump to what you need.

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QUESTION 1

Which of the following is the MOST likely symptom of a dirty drum or roller in a laser printer?

ANSWER

Lines or splotches repeated at regular intervals on the print job.

QUESTION 2

Your company relocated you to their United Kingdom office in London. You brought your personal computer with you and are in the process of setting it up. Your computer was previously configured to receive 110 V AC, but the electricity in London uses 230 V AC. Which of the following would allow your computer to run on 230 V AC?

ANSWER

Toggle the voltage switch on the power supply to the different voltage.

QUESTION 3

Which type of network medium is used by an Integrated Services Digital Network (ISDN) adapter?

ANSWER

Copper telephone wire

QUESTION 4

Which of the following cloud computing solutions delivers software applications to a client either over the internet or on a local area network?

ANSWER

SaaS

QUESTION 5

A technician is unable to install virtualization software on a host computer. The host has more free disk space than required. Which of the following is MOST likely to be the cause?

ANSWER

The motherboard UEFI/BIOS doesn't support hardware assisted virtualization

QUESTION 6

You are in a carpeted office lighted by fluorescent bulbs. You are preparing to add memory modules to a user's computer. The user has already unpacked the memory modules and stacked them on top of an old, unused CRT monitor. In this environment, what is the greatest threat to these memory modules?

ANSWER

ESD

QUESTION 7

The marketing department has hired a new employee. Prior to the new employee's first day at work, you have set up and configured a new laptop computer. The computer and all of the peripherals were purchased from the same vendor. After the new employee begins work, you receive a phone call stating that the wireless mouse is not working. Which of the following is the MOST likely reason the mouse isn't working?

ANSWER

The USB mouse receiver is not plugged into the computer

QUESTION 8

Which of the following will ensure optimal system cooling? (Select THREE).

ANSWER

Keep the ambient temperature below 80° F. Bundle cables together and secure unused cables to the case. Leave space between the case and any walls or obstructions.

QUESTION 9

The integrated mouse, the small monitor, and the compact nature of the keyboard are impeding your work when you use a notebook, but you still need a system that is portable if necessary. What is your best option?

ANSWER

Buy a docking station for your notebook.

QUESTION 10

You provide desktop support for a small company. The company has two locations in the same city, but they are several miles away. You get a call from a user who is having problems installing a new device. You try to tell the user how to update the driver for the device over the phone, but he is having a hard time understanding your directions and is becoming frustrated. What should you do?

ANSWER

Establish a Remote Desktop connection and update the driver.

QUESTION 11

You need to create a virtualization environment on your Windows 10 system using Client Hyper-V to test potentially rogue applications that end users' downloads from the internet. Because the applications may be malicious, you need to isolate the virtual machines from your production network and the host system; however, you need the virtual machines to be able to communicate with each other. Which type of virtual network should you implement?

ANSWER

A private virtual network

QUESTION 12

A technician is replacing a SOHO router and has configured DHCP to assign private IP addresses to hosts on the local network. These hosts can communicate with each other, but users can't browse the internet. Which of the following changes to the SOHO router is MOST likely to restore internet connectivity?

ANSWER

Configure the SOHO router for NAT

QUESTION 13

Which component in a laser printer applies toner to the drum, causing the toner to stick to the charged areas on the drum?

ANSWER

Developing roller

QUESTION 14

Steve, a computer technician, received a helpdesk ticket for a computer that will not start. When Steve powered the computer on, there was one long and two short beeps. Which of the following programs is reporting this error condition?

ANSWER

POST

QUESTION 15

A technician is replacing a hard drive in a laptop. Which of the following is the FIRST action the technician should perform before opening the laptop case?

ANSWER

Review the laptop manufacturer's documentation.

QUESTION 16

Google Cloud, Amazon Web Services, and Microsoft Azure are some of the most widely used cloud storage solutions for enterprises. Which of the following factors prompt companies to take advantage of cloud storage?

ANSWER

Growing demand for storage Need to bring costs down

QUESTION 17

Which connector is used with unshielded twisted pair (UTP) cable?

ANSWER

RJ45

QUESTION 18

A user generates printouts consisting of several pages of seemingly random characters every time he prints to a network printer. The printer seems to work fine for all other users. What is the most likely cause of the problem?

ANSWER

The user is using an incorrect printer driver.

QUESTION 19

You're responsible for ordering consumables for your organization's printers. Users print from these printers frequently and demand the utmost in reliability. Which of the following would be the BEST option when ordering new toner for these printers?

ANSWER

Toner cartridges recommended by the printer manufacturer.

QUESTION 20

You are an IT technician for your company. Your boss has asked you to set up and configure a wireless network to service all of the conference rooms. Which of the following features lets you allow or reject client connections by hardware address?

ANSWER

MAC address filtering

QUESTION 21

A technician must press a cable connector's retaining tab to remove a faulty fiber optic network cable. Which of the following connectors does the cable use?

ANSWER

LC

QUESTION 22

You have subscribed to a cloud-based service to synchronize data between your mobile device and your PC. Before allowing the data to be synchronized, this service uses a process where the cloud service and the client on the mobile device verify each other's security certificates. What is this process called?

ANSWER

Mutual authentication

QUESTION 23

A user in the sales department cannot get his laptop to display through a projector. He sees the screen output on the built-in display, but the video is not being seen on the projector. Which of the following steps would be BEST to try first?

ANSWER

Use the Fn key to redirect display to the external video port.

QUESTION 24

You would like to upgrade the processor in your system to a 64-bit processor. Which of the components will you most likely need to upgrade as well to take full advantage of the new processor?

ANSWER

Operating system

QUESTION 25

A SOHO's connection to the internet is through an antenna that sends and receives a microwave signal to the ISP's antenna. There can be no obstacles on the direct path between the two antennae. Which of the following internet connection types is being used?

ANSWER

Line-of-sight wireless

QUESTION 26

Which type of VHD file allocates additional physical disk space in the file as virtual disk storage is used?

ANSWER

Dynamically expanding

QUESTION 27

A user calls to report that she is experiencing intermittent problems while accessing the wireless network from her laptop computer. She can access the network from her usual office, but today, she is trying to access the wireless network from a conference room, which is across the hall and next to the elevator. Which of the following is the MOST likely cause of her connectivity problem?

ANSWER

Interference is affecting the wireless signal.

QUESTION 28

You are trying to troubleshoot a desktop power supply issue using a voltmeter. Which of the following options are the MOST common voltages produced by the power supply?

ANSWER

+/- 5v +/- 12v

QUESTION 29

When you print from your laser printer, the paper contains faint images from previous printouts. Which of the following components is MOST likely the cause?

ANSWER

Rubber scraper Fluorescent lamp

QUESTION 30

A few of your employees have complained that their computers sometimes shut down spontaneously. You have noticed that these employees all work in a part of the building where the air condition does not adequately cool the room. These employees also use CPU-intensive programs. You suspect that the spontaneous shutdowns are caused by overheating. Which of the following is the SIMPLEST way to monitor the temperature of the computer's CPU?

ANSWER

HDMI

QUESTION 31

The CEO of your small company has asked you to connect his laptop computer to the small conference room LED TV. The CEO will be showing a new promotional video that demonstrates the new company strategy through images and sound. Which of the following cable types would work BEST for connecting his laptop to the display?

ANSWER

A GPS-enabled personal navigation device

QUESTION 32

Drivers for a small trucking company rely on a smartphone navigation application. When the smartphone loses internet connectivity, the maps don't update properly. Also, the company pays extra for a premium data service plan to support the application. Which of the following mobile devices could replace the smartphone navigation application, could provide map coverage when internet connectivity is lost, and does not require a data plan?A GPS-enabled personal navigation device

ANSWER

Omnidirectional antenna Directional antenna

QUESTION 33

Which of the following are antenna types that are commonly used in wireless networks?

ANSWER

Tone generator

QUESTION 34

While investigating a network connectivity issue, a technician finds that the link light on a workstation is not lit, and there is no connectivity after replacing the patch cable with one that is known to be good. The wall jack is not labeled, and within the switch room, none of the cables or patch panel ports are labeled. Which of the following tools would the technician MOST likely use next?

ANSWER

Accelerometer Gyroscope

QUESTION 35

When a user rotates a mobile device, the operating system changes the screen orientation so that the display remains upright to the user. Which of the following technologies is uses to detect this device movement?

ANSWER

ARM

QUESTION 36

You are currently managing a few Apple iPad devices that run the iOS operating system. Which of the following BEST describes the architecture used by this device?

ANSWER

It saves time and money in troubleshooting problems.

QUESTION 37

Which of the following is a benefit of good documentation?

ANSWER

64-bit processor with eight cores RAM configured to run in quad-channel mode

QUESTION 38

You have been tasked with designing a workstation that will run VMware Workstation virtualization software. A software engineer will use it to run virtual machines for application development and testing. Which of the following criteria should MOST likely be included in your design for this system?

ANSWER

The motherboard battery has failed.

QUESTION 39

When you try to boot your computer, it hangs after POST. When you access the UEFI setup program, you see that the date is several years behind, and the time is set to 12:01 a.m. Which of the following is the MOST likely cause of this behavior?

ANSWER

internal cloud services External cloud services

QUESTION 40

What are the main types of cloud services?

ANSWER

The cold cathode fluorescent lamp has burned out and needs to be replaced. The inverter in the LCD assembly has malfunctioned.

QUESTION 41

You're troubleshooting a malfunctioning notebook computer system. The user has indicated that the LCD screen suddenly became dark and difficult to read while he was downloading a large file through his wireless network card while the system was plugged in at his desk. You've checked the system and determined that the backlight has stopped working. Which of the following is the MOST likely cause?

ANSWER

Access point

QUESTION 42

A technician is tasked with preparing a conference room so that at least 20 guests will be able to wirelessly connect laptop computers to the company network. Which of the following network devices would be the BEST choice for this connectivity?

ANSWER

Bluetooth

QUESTION 43

You want to use a wireless keyboard and mouse with your laptop computer. Which method should you choose?

ANSWER

Test the solution.

QUESTION 44

A user reports that her monitor has stopped working. While troubleshooting the issue, you discover a bad video card in the system. You replace the card and connect the monitor cable to the card. Which of the following actions should you perform NEXT in your troubleshooting strategy?

ANSWER

Manually install the correct driver on each computer that is having a problem. On your computer, add the x86 drivers.

QUESTION 45

You have a workstation running Windows 10, 64-bit edition. A local printer connected to a USB port is shared so that other users can print to that printer. Users running 32-bit versions of Windows report that they can't install the driver for the shared printer. Users running a 64-bit version of Windows do not have any problems. Which of the following actions will MOST likely fix this problem?

ANSWER

Exploiting DHCP servers to deliver the IP address of poisoned DNS servers Changing the hosts file of a user's computer

QUESTION 46

Which of the following techniques are used in a pharming attack to redirect legitimate web traffic to malicious websites?

ANSWER

VLANs

QUESTION 47

The servers for the company are all virtual machines and hosted on the same hypervisor. You need to keep users in all other departments from accessing the virtual servers used by the finance department. Which of the following technologies should you use to logically isolate the network?

ANSWER

Recalibrate the digitizer pad.

QUESTION 48

You're troubleshooting a notebook system that uses a digitizer pad and stylus for user input. The user has complained that the digitizer pad registers stylus registers taps about one inch to the right of where the taps actually occur. Which of the following actions would MOST likely fix this issue?

ANSWER

Refresh rate Resolution

QUESTION 49

Your company has decided to hire a full-time video editor. You have been asked to find a system with the level of display quality needed by someone who will be working with video all day. Which of the following video card specifications will have the greatest impact on display quality?

ANSWER

802.11a

QUESTION 50

Which wireless standard can stream data at a rate of up to 54 Mbps using a frequency of 5 GHz?

ANSWER

Plenum

QUESTION 51

You are installing networking cable in the air space between the ceiling and the roof of a building. Which type of cabling should you use?

ANSWER

Laser

QUESTION 52

Your company needs to print a lot of high-quality black-and-white text documents. These documents need to be printed as quickly and inexpensively as possible. The printer must also have the capacity to perform duplex printing. Which of the following printers BEST meets the printing requirements for your company?

ANSWER

Alternate IP configuration

QUESTION 53

You have a user who takes his laptop home every day after work. When he's working in the office, the laptop must get an IP address from the DHCP server so you configure it to obtain IP and DNS information automatically. When he's working from home, the laptop must use IP and DNS information that connects with his home network. Which IP addressing method can you use to make sure he gets a network connection at home?

ANSWER

Use the Color Management tab of the printer driver to calibrate the driver's color settings. Download and install the latest printer drivers.

QUESTION 54

A customer who uses a Windows computer recently purchased an inkjet printer from your store. She is now calling to complain that the colors in the photos she printed on her new printer don't match the colors in the original photos created by the photo shop. Which of the following actions will MOST likely resolve the issue?

ANSWER

hotspot

QUESTION 55

While traveling in a car, a user who has an unlimited data plan on a smartphone opens a wireless connection to share the internet with other passengers. Which of the following connection types is MOST likely being used?

ANSWER

Run any diagnostic software that came with the device.

QUESTION 56

You have just installed a new hardware device, upgraded the driver, and installed the custom software that came with the device. Now you can't get the device to work. Which of the following troubleshooting steps is the BEST to try first?

ANSWER

switch

QUESTION 57

A technician determines that an older network hub that connects 24 workstations is performing poorly due to excessive network collisions. Which of the following network devices would be the BEST replacement?

ANSWER

Wearable devices

QUESTION 58

The human resources department wants to give gifts away at the company's summer party. They would like to have an assortment of fitness tracker wristbands, smartwatches, smart glasses, and virtual reality headsets. They have been trying to locate these on the internet, but have been unsuccessful. Which of the following types of mobile devices should you tell them to search for?

ANSWER

3389

QUESTION 59

While working on a Windows workstation, you've enabled Remote Desktop. Which of the following ports MUST be opened in the server's firewall to allow remote clients to access the desktop?

ANSWER

Install additional memory in the printer.

QUESTION 60

A user has created a complex spreadsheet on her workstation containing many graphs and charts. She sent the document to an older network laser printer that is shared by everyone in her department. When she picked up the output, only the top half of each page was printed, and the bottom half was blank. Which of the following will MOST likely rectify this issue?

ANSWER

Educate the user as to how the problem was resolved and verify that they are satisfied with the results.

QUESTION 61

A user sends a print job to a network printer, and it prints page after page of random characters. He calls the help desk, and a technician discovers that the wrong printer driver had been loaded on the user's workstation. The technician loads the correct driver, verifies that the system works correctly, and documents the resolution. Which of the following actions should the technician perform NEXT?

ANSWER

Shut off the system immediately.

QUESTION 62

After arriving at work, you turn on your computer to begin your day. Instantly, you see smoke and smell a strange odor coming from the computer. Which of the following would be the MOST important action to take?

ANSWER

Implement a virtual firewall within the hypervisor.

QUESTION 63

You want to be able to monitor and filter VM-to-VM traffic within a virtual network. What should you do?

ANSWER

She has turned Num Lock on, causing the keyboard to register numbers instead of letters.

QUESTION 64

A user is trying to log into Windows on her notebook computer. She enters the correct password for her user account, but the system won't let her authenticate, claiming the wrong password has been entered. Which of the following is MOST likely causing this problem?

ANSWER

Touch pad

QUESTION 65

What type of peripheral device is typically found on a laptop computer and allows the user to control the cursor with a finger?

ANSWER

Either no memory is installed or the memory was not detected.

QUESTION 66

You are attempting to boot a new system. The boot fails, and the system sounds a beep code. Which of the following describes the MOST likely cause of this error?

ANSWER

It connects multiple cable segments or devices and forwards frames to the appropriate segment.

QUESTION 67

Which of the following best describes how a switch functions?

ANSWER

POP3

QUESTION 68

Which of the following protocols do email clients use to download messages from a remote mail server?

ANSWER

Have him verify that the wireless card's hardware switch is in the On position.

QUESTION 69

After arriving in a new city today, a traveling sales team member calls you stating that his wireless connection no longer works. He has checked the wireless configuration, and he knows it to be correct because it was working yesterday. What should you do first?

ANSWER

Test the solution.

QUESTION 70

A user reports that he is unable to access data on an external hard drive. You investigate the problem and determine that the USB cable connection to the hard drive is damaged. You replace the cable. Which of the following actions should you take NEXT?

ANSWER

SMTP

QUESTION 71

Which protocol is used to send email messages from a mail client to a mail server?

ANSWER

NFC

QUESTION 72

Which of the following wireless communication technologies can be described as follows? • Has a very limited transmission range of less than two inches • Used with credit cards and passports • Slower than other wireless technologies • Constantly emits a signal

ANSWER

IaaS

QUESTION 73

You were recently hired by a small start-up company. The company is in a small office and has several remote employees. You have been asked to find a business service that would accommodate the current size of the company but would also be able to scale as the company grows. The service needs to provide adequate storage, as well as additional computing power. Which cloud service model should you use?

ANSWER

processor video card memory

QUESTION 74

You turn on your desktop computer. You can hear the fans start up, but the monitor remains blank. You wait a while, but it doesn't appear that anything else is happening. The hard drive activity light doesn't show activity, and you never hear the sound that plays when Windows loads. Which of the following are the most likely cause of the problem?

ANSWER

Make sure that the hard disk is connected to the power supply.

QUESTION 75

You have just finished upgrading the 250 W power supply in your desktop computer to a 450 W power supply. Now the BIOS doesn't recognize one of the hard disk drives in the system during POST. Which of the following troubleshooting steps is the BEST to try first?

ANSWER

cable stripper punchdown tool

QUESTION 76

A technician is tasked with replacing a 110-style keystone jack module in a patch panel. Which of the following tools would the technician use to attach the new module to the end of the cable? (Select TWO).

ANSWER

UEFI

QUESTION 77

Which of the following (1 BEST describes the technology designed to replace the BIOS and (2 is a firmware solution for controlling the startup process and loading the computer operating system into memory?

ANSWER

34mm wide at the connector Lshape

QUESTION 78

Which of the following are characteristics of the ExpressCard /54 form factor.

ANSWER

Enable virtualization support in the BIOS settings.

QUESTION 79

Rachel, an employee in the support department, wants to run a virtual machine on her computer from which she can troubleshoot customer issues. Which of the following must you complete before virtualization will work on her computer?

ANSWER

Move the tabs holding the RAM out of the way; pull straight up to remove the RAM.

QUESTION 80

Which of the following is the most common method for removing RAM from a motherboard?

ANSWER

NFC

QUESTION 81

A user pays for a retail purchase by placing a smart phone next to the merchant's reader. Which of the following mobile device connections is being used?

ANSWER

Spots at regular intervals on the page

QUESTION 82

After receiving several complaints from the employees in your company, you start to troubleshoot a laser printer. After a short while, you have concluded that the most probable cause is a dirty drum. Which of the following is the MOST logical reasons for this conclusion?

ANSWER

Full virtualization

QUESTION 83

The virtual machine completely simulates a physical computer system.

ANSWER

Full virtualization

QUESTION 84

Operating systems do not need modification to run within virtual machines.

ANSWER

partial virtualization

QUESTION 85

Only some of the components of a virtual machine are virtualized.

ANSWER

paravirtualization

QUESTION 86

Guest operating systems directly access hardware resources in the hypervisor host system.

ANSWER

software instalation

QUESTION 87

This event can require more memory and can cause problems if there is not enough memory when it occurse.

ANSWER

first boot of a new computer

QUESTION 88

Memory is not properly seated or missing/the motherboard is defective.

ANSWER

hardware installation or removal

QUESTION 89

Incompletely or improperly doing this can cause errors that appear to be memory-related.

ANSWER

memory upgrade

QUESTION 90

The memory is not compatible and was not installed and configured properly.

ANSWER

smart card reader

QUESTION 91

Used to scan hardware that contains an embedded microchip for authentication.

ANSWER

digitizer

QUESTION 92

Used to capture some type of analog signal and convert it into digital data.

ANSWER

smard card reader

QUESTION 93

Can be a stand-alone device or integrated with other peripherals, such as a keyboard.

ANSWER

biometric scanner

QUESTION 94

Used to scan users' unique physical features and use them to verify their identity.

ANSWER

digitizer

QUESTION 95

Graphics tablets mostly used by graphic artists to capture hand-drawn images.

ANSWER

Biometric scanner

QUESTION 96

Fingerprint scanner.

ANSWER

barcode reader

QUESTION 97

Most commonly used in retail environments at checkout stands

ANSWER

Virtual Network Interface

QUESTION 98

Uses Ethernet standards to transmit and receive frames on the network

ANSWER

Virtual Firewall

QUESTION 99

Implemented within the hypervisor to monitor and filter traffic on the virtual network as it flows between virtual machines

ANSWER

Virtual VLAN

QUESTION 100

Can be defined within the virtual switch and associated with specific hosts

ANSWER

Virtual Router

QUESTION 101

Can support multiple networks on each of its interfaces, unlike the physical version

ANSWER

Virtual Switch

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