CompTIA A+ 220-901/902 Practice Exam

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| Attempts: 425 | Questions: 200 | Updated: Jan 18, 2025
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1. When is it appropriate to yell at a user?

Explanation

Don't get angry or yell at clients.

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About This Quiz
CompTIA A+ 220-901/902 Practice Exam - Quiz

This practice exam prepares for the CompTIA A+ 220-901\/902 certification, assessing knowledge in IT industry requirements, Windows Operating Systems, and exam administration by Pearson VUE. Essential for aspiring IT professionals.

2.

What first name or nickname would you like us to use?

You may optionally provide this to label your report, leaderboard, or certificate.

2. What companies dominate the chipset market? (select two)

Explanation

AMD and Intel produce the vast majority of the chipsets used in personal computers.

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3. What can a government use to determine your location at a specific time as long as you're using your mobile device?

Explanation

Geotracking can locate you and your GPS-equipped mobile device.

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4. While manning the help desk, you get a call from a distraught user who says she has a blank screen. What would be a useful follow-up question? (select two)

Explanation

Go for the simple answer first. When faced with a blank screen, check to see if the computer and the monitor are turned on.

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5. Which certification is considered a requirement for entrance into the IT industry?

Explanation

The Comptia A+ certification is considered a requirement for entrance into the PC industry.

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6. Microsoft Internet Explorer, Mozilla Firefox, Google Chrome, and Microsoft Edge are all examples of what?

Explanation

All these programs are Web browsers

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7. To make your files unreadable by others, what should you use?

Explanation

To make your files unreadable by others, use encryption.

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8. How many speakers are in a Dolby Digital 5.1 setup?

Explanation

A Dolby Digital 5.1 setup has five speakers and one subwoofer.

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9. What does System Information do?

Explanation

System Information gives you a wide variety of information about your system.

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10. Which of the following cellular data technologies is often considered 4G?

Explanation

Long Term Evolution (LTE) us usually considered a 4G cellular data technology

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11. What is the primary benefit to adding more RAM to a laptop that uses shared memory? (select the best answer)

Explanation

Improved overall system performance is the primary benefit to adding more RAM to a laptop that uses shared memory

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12. What should you do after successfully repairing a machine?

Explanation

At the end of a repair you should always document your findings.

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13. What is the proper voltage for a U.S. electrical outlet?

Explanation

U.S. outlets run at 120 V

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14. Steven's Windows system can't connect to the Internet, and he comes to you, his PC tech, for help. You figure out that it's a DHCP problem. What program should you run to troubleshoot his DHCP problem from the client side?

Explanation

You should run ipconfig, or more specifically ipconfig /release and then ipconfig /renew to get a new IP address if a DHCP server is available for Steven's Windows system. This typically resolves most DHCP client-side problems. ifconfig is the program used by Mac OS X and Linux systems for this task. Neither config nor dhcp is valid.

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15. After becoming CompTIA A+ certified, what's the next certification you should attain?

Explanation

The typical certification path goes from CompTIA A+ to CompTIA Network+, so you have all the basics before you choose to specialize in Microsoft or Cisco products.

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16. At the very least, what tool should be in every technician's toolkit?

Explanation

Every tech's toolkit should have a phillips-head screwdriver, at the very least.

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17. What is the term for the delay in the RAM's response to a request from the MCC?

Explanation

Latency is the term for the delay in the RAM's response to a request from the MCC.

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18. Which of the following form factors dominates the PC industry?

Explanation

Almost all modern motherboards follow the ATX form factor.

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19. Which term describes a combo of many updates and fixes in Windows Vista/7?

Explanation

A service pack is a combo of many updates and fixes in Windows Vista/7.

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20. Leonard just purchased a very expensive comic book and paid for it using the stored credit card information on his smartphone. What technology did he use to make the transaction?

Explanation

Leonard likely purchased his comic book using the Near Field Communication (NFC) technology, which can be used for payment transactions through stored credit card information in mobile applications.

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21. Which of the following is a good practice after completing a troubleshooting call at someone's office?

Explanation

A simple follow-up builds good will and trust. This is a very important step t take after completing a job.

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22. Which tool helps you avoid accidental static discharge by keeping you at the same electrical potential as the computer on which you're working?

Explanation

An antistatic wrist strap keeps you at the same electrical potential as the computer.

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23. Jack wants to watch television through his computer. He has a cable television subscription. What else does he need?

Explanation

Jack can install a TV tuner card in his computer (or attach one via USB) and then plug his cable into it.

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24. What tool is used in Mac OS X to perform full system backups?

Explanation

Mac OS X uses Time Machine to perform full system backups.

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25. When troubleshooting a software problem on Pheobe's computer and listening to her describe the problem, you get a text from your boss. Which of the following is the most appropriate action for you to take?

Explanation

Focus on the customer and don't use her things.

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26. Which Windows utility uses points in time that enable you to return your system to a previous date and state?

Explanation

System Restore uses [restore points]-snapshots of a system at a given point of time-a quick and handy way to return your system to a previous state.

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27. What port does POP3 use?

Explanation

Post Office Protocol 3 (POP3) uses port 110.

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28. A client calls and is upset that he's misplaced his iPad. The mobile device has literally thousands of client records, including business addresses, e-mail addresses, phone numbers, and, in some cases, credit card information. What should he do first?

Explanation

To protect his data, the client should log into his iCloud account and remotely wipe the iPad and erase all personal data

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29. A great way to protect data on a removable media card is to

Explanation

A great way to protect data on a removable media card is to encrypt it.

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30. Which feature enables a single-core CPU to function like two CPUs?

Explanation

Intel loves hyper-Threading, where a single-core CPU can function like a dual-core CPU as long as it has operating system support.

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31. Steve adds a second 1-GB 240-pin DIMM to his PC, which should bring the total RAM in the system up to 2 GB. The PC has an Intel Core 2 Duo 3-GHz processor and three 240-pin DIMM slots on the motherboard. When he turns on the PC, however, only 1 GB of RAM shows up during the RAM count. Which of the following is most likely to be the problem?

Explanation

Steve failed to seat the RAM properly.

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32. Which of the following Linux commands will show detailed information about the contents of a folder?

Explanation

Type [Is -l] and press ENTER to see detailed info about the contents of a folder in Linux.

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33. When you install an operating system alongside an existing operating system, what do you create?

Explanation

An OS added alongside an existing OS creates a multiboot system.

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34. Which encryption protocol offers the best security?

Explanation

WPA2 is the best of the encryption technologies listed.

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35. Jim likes his laptop but complains that his wireless seems slow compared to all the new laptops. On further inspection, you determine that his laptop runs 802.11n. What can be done to improve his network connection speed?

Explanation

He can haev the 802.11n NIC replaced with an 802.11ac NIC.

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36. Which of the following should Mary set up on her Wi-Fi router to make it the most secure?

Explanation

Mary should set up WPA2 on her Wi-Fi router

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37. Edna wants to put a policy in place at her company to prevent or at least limit viruses. What policies would offer the best solution?

Explanation

The best policy includes updating the software engine and definitions, scanning PCs regularly, and educating users.

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38. How many exams do you need to pass to become CompTIA A+ certified?

Explanation

You need to pass two exams to become CompTIA A+ certified.

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39. What is a thin client?

Explanation

Thin clients rely on servers to perform anything beyond the most basic computing tasks.

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40. What is the name of the program that boots Windows?

Explanation

On Windows machines, bootmgr is used to boot the OS.

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41. Which is the best password for the user Joy, who has a pet named Fido and a birth date of January 8, 1982.

Explanation

Of the choices listed, oddvr88* would be the best password; it has a non-alphanumeric character, which makes it more difficult for a hacker to crack.

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42. Which of the following is an example of a hybrid topology?

Explanation

A star bus topology, like the one used with Ethernet networks, is a hybrid topology.

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43. What command often enables you to diagnose TCP/IP errors such as connection problems?

Explanation

You can often use the ping command to diagnose TCP/IP problems.

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44. Which of the following would be a legitimate reason a mobile device is running slowly?

Explanation

Lack of storage space is a legitimate reason a mobile device would run slow

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45. Darren has installed a new CPU in a client's computer, but nothing happens when he pushes the power button on the case. The LED on the motherboard is lit up, so he knows the system has power. What could be the problem?

Explanation

The best answer here is that he forgot the thermal paste, though you can also make an argument for a disconnected fan.

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46. Davos finds that a disgruntled former employee decided to sabotage her computer when she left by putting a password in CMOS that stops the computer from booting. What can Davos do to solve this problem?

Explanation

Davos should find the clear jumper on the motherboard and then boot the computer with a shunt on the jumper to clear the CMOS information.

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47. What should you keep in mind when testing DC connectors?

Explanation

DC has polarity. The red lead should always touch the hot wire; the black lead should touch a ground wire.

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48. Which configuration requires three same-sized volumes?

Explanation

RAID 5 requires three same-sized volumes.

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49. What is the most important component for building a virtualization workstation?

Explanation

Every virtual machine you run consumes a large share of RAM, so the more RAM you have, the more VMs you can run.

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50. What Microsoft API supports 3-D graphics?

Explanation

Microsoft makes the DirectX API to support 3-D graphics.

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51. Users bringing personally owned mobile devices into an enterprise environment is called:

Explanation

Users bringing their personal mobile devices into an enterprise is Bring Your Own Device (BYOD)

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52. Which tool would help you determine why a print job didn't print?

Explanation

A print spooler would help you determine why a print job didn't print.

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53. Which of the following paths would open Administrative Tools in Windows 8.1?

Explanation

To open Administrative Tools, right-click on the Start button and select Administrative Tools. Easy!

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54. When performing automatic updates, Windows 7 uses which feature to download additional updates for other Microsoft products.

Explanation

Windows uses the Microsoft Update feature to download additional updates for other Microsoft products, such as Microsoft Office.

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55. What is the processor on a video card called?

Explanation

You'll typically see video card processors referred to as GPUs.

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56. Which of the following would be most appropriate for the workplace? (select two)

Explanation

Kahki trousers and a polo shirt trump jeans and a T-shirt every time.

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57. 32-bit programs are installed into which folder by default in a 64-bit edition of Windows?

Explanation

By default, 32-bit applications install into the C:\Program Files (x86) folder.

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58. Sven calls the Help Desk to complain that a certain program (I won't name names here) has locked up. In such a scenario, which tool should Sven use to force the program to quit and how should he open the program?

Explanation

Task Manager is the tool you need to force a program closed in Windows. The easiest way to access the tool is to press CTRL-SHIFT-ESC simultaneously.

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59. Of the following four Internet connection options, which typically offers the slowest connection speed?

Explanation

Dial-up connections are robust but much slower than the other connection types.

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60. Zander downloaded a game off the Internet and installed it, but as soon as he started to play, he got a Blue Screen of Death. Upon rebooting, he discovered that his Documents folder had been erased. What happened?

Explanation

Clearly Zander installed a Trojan horse masquerading as a game

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61. What does BIOS provide for the computer?

Explanation

BIOS provides the programming that enables the CPU to communicate with other hardware.

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62. If you do not complete the activation process for Windows 7, what will happen to your computer?

Explanation

If you do not complete the activation process for Windows 7, the computer will work fine for 30 days and then Windows will be disabled

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63. You've just replaced Jane's Windows 7 PC with a new Windows 8.1 machine. What post-install tool should you run to make the transition as painless as possible for her?

Explanation

Run the Windows Easy Transfer tool to move all her Windows 7 personal files and familiar settings, like her desktop, to the new Windows 8.1 computer.

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64. Which utility is useful in Identifying a program that is hogging the processor?

Explanation

Task Manager will very quickly identify a program that is hogging the processor

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65. What is the minimum CAT level cable required for a 100BaseT network?

Explanation

100BaseT networks need CAT 5 or better UTP

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66. Why would you use STP over UTP cabling?

Explanation

Shielded twisted pair cabling handles interference from other electronics much better than unshielded twisted pair.

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67. Which mobile OS enables developers to customize the user experience without restrictions?

Explanation

Google Android is open source, enabling developers to create custom versions for their devices

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68. If Windows recognizes a device, where will it appear?

Explanation

Windows displays recognized devices in Device Manager

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69. How do you differentiate two PATA drives on the same cable?

Explanation

PATA drives use master/slave jumpers to differentiate between the two drives.

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70. Which of the following file systems enables you to encrypt files, thus making them unviewable by any account but your own?

Explanation

The Encrypting File System (EFS) enables you to encrypt files, making them unviewable by any account but your own.

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71. What tool enables you to correct a corrupted Windows operating system by reverting your computer to a previous state?

Explanation

Using System Restore, you can restore your computer to a previous restore point.

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72. What kind of frame gets received by all NICs in a LAN?

Explanation

All NICs in a LAN will receive broadcast frames.

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73. What advantage does satellite have over cable for connecting to the Internet?

Explanation

Clearly, satellite cuts you loose from the wires!

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74. Solon has a very buggy computer that keeps locking up at odd moments and rebooting spontaneously. He suspects the motherboard. How should he test it?

Explanation

Solon needs to check settings, verify good components, replace components, and document all testing.

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75. What happens if you cable a PATA hard drive incorrectly?

Explanation

Nothing will be damaged or lost - there just won't be any communication.

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76. How do you open the Registry Editor from the command prompt? (Select two)

Explanation

From the command prompt, you can use either regedit or regedt32 to open the Registry Editor.

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77. How do you run a command at the Windows command prompt with administrative privileges?

Explanation

To run a command at the Windows command prompt with administrative privileges, you would right-click a command-prompt shortcut and then select Run as administrator.

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78. Which of the following points to a hardware or CMOS problem rather than an OS problem with a PC that won't boot?

Explanation

A Black screen with an "invalid boot disk" error message points to a hardware or CMOS problem with a PC that won't boot.

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79. What provides the illumination for LCD monitors?

Explanation

The backlights provide the illumination for the LCD panel

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80. What command-line utility would you run to show a list of network computers?

Explanation

Use the net view command to show a list of computers on a network.

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81. Pamela decides to add a traditional e-mail app to get her e-mail. Which of the following will she most probably need to configure the app? (select two)

Explanation

A traditional e-mail app would need the name of the SMTP server and the name of either the IMAP or POP3 e-mail server.

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82. Which one of the following port types do most printers support?

Explanation

You'll find almost all non-networked printers hooked up to USB ports

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83. How many study hours to pass the CompTIA A+ exams does Mike recommend to a person just starting out learning PC  repair?

Explanation

Mike recommends about 240 Study hours for a person new to PC repair.

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84. Which of the following terms are measures of CPU speed?

Explanation

The terms megahertz (MHz) and gigahertz (GHz) describe how many million or billion (respectively) cycles persecond a CPU can run.

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85. Martin bought a new motherboard to replace his older ATX motherboard. As he left the shop, the tech on duty called after him, "Check your standouts!" What could the tech have meant?

Explanation

Standouts are the metal connectors that attach the motherboard to the case.

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86. Which of the following is a common spindle speed for an HDD?

Explanation

Common spindle speeds on magnetic hard drives are 5400, 7200, 10,000, and 15,000 RPM.

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87. Which of the following commands is used to change file permissions in Linux?

Explanation

The chmod command enables you to change file permissions in Linux.

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88. How do you measure brightness of a projector?

Explanation

The brightness of a projector is measured in lumens.

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89. What command would you use to view the path taken by an Ethernet packet?

Explanation

The tracert command in Windows traces the path a data packet takes to get to its destination. Mac OS X and Linux use the traceroute utility for similar purposes.

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90. What is a common symptom of a bad network cable?

Explanation

If there are no link lights, you probably have a bad network cable.

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91. Which of the following programs enable you to access and work on a remote computer from your local computer? (select two)

Explanation

Both Remote Desktop Connection and Telnet enable you to access and work on a remote computer. The former is just prettier and more secure!

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92. What is the process for using or manipulating people to gain access to network resources?

Explanation

Social engineering is the process for using or manipulating people to gain access to network resources.

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93. You are at a customer's workstation to install several software and hardware updates, a process that will take a while and will require several reboots of the computer. What should you do about the password to the user's account?

Explanation

In this circumstance, asking for a temporary password is the right answer. Make sure the user changes her password back before you leave the site.

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94. What feature of Mac OS X is the equivalent of the command-line interface in Windows?

Explanation

Terminal is the equivalent of the Windows command-line interface.

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95. What is the best way to determine the total capacity and specific type of RAM your system can handle?

Explanation

The best way to determine the total capacity and specific type of RAM your system can handle is to check the motherboard book.

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96. What three functions does a home server PC provide? (select three)

Explanation

Home servers share files, stream media, and share printers.

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97. What do most techs call a toner or tone generator?

Explanation

Most techs refer to a toner or tone generator as a Fox and Hound, the name of a popular brand of tone generator.

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98. Which of the following Control Panel applets will display the amount of RAM in your PC?

Explanation

You can use the System applet to see how much RAM is currently in your PC.

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99. What does a black down arrow next to a device in Device Manager indicate?

Explanation

The device has been disabled.

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100. What variation of the PCI bus was specifically designed for laptops?

Explanation

The Mini-PCI format conserves space and power, making it an ideal card type for use in laptops.

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101. Joan recently bought a new gamepad and used the Add a Device wizard to install it, but it still won't work. What should she do next? (select two)

Explanation

Joan should check both the manufacturer's Web site and Windows Update for the latest drivers

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102. Dudley wants to connect his new MacBook Pro to an LCD monitor that has a Digital Visual Interface. What type of adapter should he use?

Explanation

Dudley should use a Thunderbolt-to-DVI adapter to connect his new MacBook Pro to the LCD monitor.

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103. Bluetooth technology enables computers to link into what sort of network?

Explanation

Bluetooth creates personal area networks.

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104. Which of the following are good ideas when it comes to batteries? (select two)

Explanation

Keeping a battery in the freezer is a good idea in theory, but not in practice. All batteries contain toxic chemicals and should NEVER be treated like regular trash

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105. Which CPU feature enables the microprocessor to support running multiple operating systems at the same time?

Explanation

Intel and AMD CPUs come with virtualization support, enabling more efficient implementation of virtual machines.

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106. Erin is stuck. She needs data from a friend's laptop to work on her desktop, but neither of them brought a thumb drive. She has any number of Ethernet cables at her disposal, but the last port on the switch is taken. What's her best option, given such a scenario?

Explanation

Erin should connect the computers directly using a crossover cable.

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107. What is the proper order of the laser printing process?

Explanation

Process, charge, expose, develop, transfer, fuse, and clean is the proper process

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108. What is the maximum number of SATA devices you can have on a system?

Explanation

There is no maximum number of SATA drives you can have on a system beyond the limits imposed by the number of ports on your motherboard/host card.

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109. What is the maximum cable length for USB 2.0?

Explanation

USB has a maximum cable length of 5 meters.

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110. What is the most common boot method for installing Windows 8?

Explanation

Although in-place upgrades happen with more frequency, it's still very common to boot to the Windows 8 DVD and install from there.

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111. Steve complains that his aging Windows 7 laptop still isn't snappy enough after upgrading the RAM. What might improve system performance?

Explanation

Replacing the HDD with a SSD will speed up the system

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112. What company administers the CompTIA A+ certification exams?

Explanation

Pearson VUE administers the CompTIA A+ certification exams.

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113. Into which socket could you place an Intel Core i5?

Explanation

You'll find Core i5 processors in several socket types, notably LGA 1155 and LGA 1156.

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114. Gregor installed a third stick of known good RAM into his Core i7 system, bringing the total amount of RAM up to 3 GB. Within a few days, though, he started having random lockups and reboots, especially when doing memory-intensive tasks such as gaming. What is most likely the problem?

Explanation

Most like,y, Gregor installed RAM that didn't match the speed or quality of the RAM in the system.

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115. Which of the following most accurately describes the relationship between BIOS and hardware?

Explanation

All hardware needs BIOS!

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116. Joachim ordered a new power supply but was surprised when it arrived because it had an extra 4-wire connector. What is that connector?

Explanation

The P4 connector goes into the motherboard to support more power-hungry chips.

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117. What is the fastest speed that Hi-Speed USB 2.0 can go?

Explanation

Hi-Speed USB 2.0 has a theoretical maximum of 480 Mbps.

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118. Powerful hypervisors like ESXi are often booted from...

Explanation

A good hypervisor can be tiny, loading from something as small as a USB thumb drive.

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119. What is 1080p resolution?

Explanation

1080p resolution is 1920 x 1080

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120. Which of the following is used in mobile devices to convert analog video and sound to digital video and sound?

Explanation

Digitizers are used in mobile devices to convert analog video and sound to digital video and sound, or to interpret analog signals associated with touch movement on a screen into digital equivalents.

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121. Fred wants to play World of Warcraft on his desktop system. He logs in and then the game asks for a code that is generated by an authenticator app on his Android phone. This is an example of:

Explanation

Using both a password and a security code is an example of multifactor authentication

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122. Which domain receives the most coverage in the 220-902 exam?

Explanation

The 220-902 exam dedicates 29% of the questions to Windows operating systems.

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123. Which Mac OS X feature is functionally equivalent to Windows File Explorer?

Explanation

Finder is the equivalent of File Explorer.

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124. Scott wants to add 512 MB of PC100 SDRAM to an aging but still useful desktop system. The system has a 100-MHz motherboard and currently has 256 MB of non-ECC SDRAM in the system. What else does he need to know before installing?

Explanation

Scott needs to know if the system can handle that much RAM.

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125. Jill boots an older Pentium system that has been the cause of several user complaints at the office. The system powers up and starts to run through POST, but then stops. The screen displays a "CMOS configuration mismatch" error. Of the following list, what is the most likely cause of this error?

Explanation

The CMOS battery is likely dying.

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126. When triggered, which of the following sends a signal to the computer to start recording?

Explanation

Motion sensors respond to external movement. When triggered, they send a signal to the computer to start recording.

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127. How can you encrypt an entire drive, including files and folders belonging to other users?

Explanation

BitLocker Drive Encryption enables you to encrypt an entire drive, including files and folders belonging to other users.

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128. A typical CAT 6 cable uses which connector?

Explanation

CAT 6 cables use an RJ-45 connector.

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129. What are the steps involved in pairing a Bluetooth keyboard with a tablet?

Explanation

To pair a Bluetooth keyboard with a tablet, enable Bluetooth on the tablet, enble Bluetooth on the tablet, turn on the Bluetooth device, find the Bluetooth device in the tablet's settings screen, then enter a PIN code or finalize the pairing.

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130. Which hardware firewall feature enables incoming traffic on a specific port to reach an IP address on the LAN?

Explanation

To open a port on your hardware firewall and send incoming traffic to a specific PC, use port forwarding

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131. Why is it a good idea to ensure that the slot covers on your computer case are all covered?

Explanation

Both A and B are correct. Keeping the slots covered helps keep a good airflow in your case and keeps dust and smoke away from all those sensotive internal components.

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132. Which option enables you to share files easily among multiple users on a single Windows 8 system?

Explanation

The Public Libraries make it easy to share files among multiple users of a single system.

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133. Which Windows command is functionally equivalent to the Linux Is command?

Explanation

The Windows dir command accomplishes a similar function to the Linux Is command.

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134. John's boss asks for a recommendation for connecting the company network to a small satellite building about 1 km from the main campus. The company owns the verdant land in between. Given such a scenario, what network technology implementation should John suggest?

Explanation

John should suggest the only network technology implementation (listed here) that can cover those distances, Ethernet over single-mode fiber.

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135. What determines the name of a wireless network?

Explanation

The SSID determines the name of a wireless network.

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136. John dressed up in a fake security guard uniform matching the ones used by a company and then walked into the company's headquarters with some legitimate employees in an attempt to gain access to company resources. What kind of attack is this?

Explanation

John just practiced tailgating on the unsuspecting company

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137. The first day on the job, Jill received a spreadsheet that listed approved software for users and clear instructions not to allow any unapproved software. What kind of policy must she follow?

Explanation

Jill needs to enforce compliance to help keep the tech support calls at a minimum and the uptime for users at a maximum.

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138. Which version of Windows is not tested on the 2015 versions of the CompTIA A+ exams?

Explanation

No versions of Windows 10 are on the CompTIA A+ exams.

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139. What function does the external data bus have in the PC?

Explanation

The external data bus provides a channel for the flow of data and commands between the CPU and RAM.

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140. Which RAID standard requires at least four drives?

Explanation

RAID 10 requires at least four drives.

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141. You take a tech call from a user who complains that she gets an error message "Hub power exceeded," when she plugs her new thumb drive into her USB keyboard's external USB port. Worse, the device won't work. What's most likely the problem?

Explanation

Just like that error message said, the thumb drive drew too much power for the hub to handle.

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142. What does CompTIA call a PC case built for a home theater?

Explanation

HTPC cases enable your PC to blend in with your home theater equipment.

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143. Which mobile device screen technology uses no backlight?

Explanation

OLED technology doesn't use a backlight

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144. Jailbreaking an iPhone gives access to:

Explanation

Jailbreaking is unique to iOS to provide access to the root account.

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145. What tool would you use to enable auditing on a local level?

Explanation

You can enable local auditing through Local Security Policy.

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146. What version of Windows introduced the Metro UI?

Explanation

Microsoft introduced the Metro UI with Windows 8.

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147. Cindy installs a second stick of DDR3 RAM into her Core i5 system, bringing the total system memory up to 4 GB. Within a short period of time, though, she begins experiencing Blue Screens of Death. What could the problem be?

Explanation

If you have no problems with a system and then experience problems after installing something new, chances are the something new is at fault.

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148. What small device enables you to test a NIC's circuitry?

Explanation

A loopback plug will test the NIC's Ethernet port and circuitry.

Submit

149. Ralph has installed a wireless network in his house, placing the wireless access point in the kitchen, a centralized location. The Wi-Fi works fine in the living room and dining room but goes out almost completely in the bedroom. What's most likely the problem?

Explanation

Watch out for microwave ovens, refrigerators, and pipes in the walls. They can interfere with a Wi-Fi signal and create dead spots.

Submit

150. What is the default Ubuntu desktop environment?

Explanation

Ubuntu Linux uses Unity DE by default.

Submit

151. Which of the following commands will repair a damaged master boot record in a Windows 8 PC?

Explanation

Run bootrec /fixmbr in the Windows RE to repair a damaged master boot record in a Windows 8 PC

Submit

152. Which of the following is a 15-digit number used to uniquely identify a mobile device that connects to a cellular network?

Explanation

The International Mobile Equipment Identity (IMEI) number is a 15-digit number used to uniquely identify a mobile device, typically a smartphone or other device that connects to a cellular network.

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153. Which Windows 8 feature did Microsoft not include in Windows 10?

Explanation

Microsoft did not include the Charms bar in Windows 10. Bye!

Submit

154. A client calls to complain that his computer starts up, but crashes when Windows starts to lead. After a brief set of questions, you find out that his nephew upgraded his RAM for him over the weekend and couldn't get the computer to work right afterward. What could be the problem?

Explanation

Most likely, the nephew disconnected the CPU fan to get at the RAM slots and simply forgot to plug it back in.

Submit

155. How does an NMI manifest on a Mac OS X system?

Explanation

A non-maskable interrupt on a Mac OS X system often results in the spinning pinwheel called the pinwheel of death.

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156. Jill decided to add a second hard drive to her computer. She thinks she has it physically installed correctly, but it doesn't show up in Windows. Which of the following options will most likely lead Jill where she needs to go to resolve the issue?

Explanation

Jill should reboot the computer and watch for instructions to enter the CMOS setup utility (for example, a message may say to press the DELETE key). She should do what it says to go into CMOS setup.

Submit

157. Amanda bought a new system that, right in the middle of an important presentation, gave her a Blue Screen of Death. Now her system won't boot at all, not even to CMOS. After extensive troubleshooting, she determined that the motherboard was at fault and replaced it. Now the system runs fine. What was the most likely cause of the problem?

Explanation

Although all of the answers are plausible, the best answer here is that her system suffered burn-in failure.

Submit

158. How many pins does a SATA power connector have?

Explanation

SATA power connectors have 15 pins.

Submit

159. Which SATA version offers the least overhead (and thus best performance)?

Explanation

SATA Express (SATAe) used the PCIe bus and has none of the traditional SATA overhead.

Submit

160. Which port type offers the fastest transfer speed?

Explanation

Superspeed USB easily spanks the competition here.

Submit

161. Janelle wants to start a new photo-sharing service for real pictures of Bigfoot, but doesn't own any servers. How can she quickly create a new server to run her service?

Explanation

Using the public cloud will enable Janelle to quickly create the servers she needs.

Submit

162. Tablet PCs come in which of the following form factors? (select two)

Explanation

Tablet PCs come in convertible and slate form factors.

Submit

163. Edgar successfully replaced the display on a laptop (a toddler had taken a ballpoint pen to it), but the customer called back almost immediately complaining that his wireless didn't work. What could be the problem?

Explanation

A disconnected antenna makes Wi-Fi unhappy

Submit

164. What is the primary CompTIA Web site?

Explanation

The primary CompTIA Web site is www.comptia.org (although the .com and .net addresses will redirect you to the main site).

Submit

165. Once you have ascertained the computer's problem and backed up the critical data, what should you do?

Explanation

You should establish a theory of probable cause once you have ascertained the problem and backed up data.

Submit

166. What feature of ATX systems prevents a user from turning off a system before the operating system has been shut down?

Explanation

The soft power feature of ATX systems prevents a user from turning off a system before the OS has been shut down.

Submit

167. What form factor connects directly to a dedicated motherboard socket?

Explanation

The M.2 (and mSATA) SSD has a dedicated motherboard socket.

Submit

168. Ralph suspects a bad RAM stick is causing Windows to fail to boot. What default Windows tool can he use to check the RAM?

Explanation

Ralph should use the Windows Memory Diagnostic Tool to scan his RAM

Submit

169. Upgrading which component of a host machine would most likely enable you to run more virtual machines simultaneously?

Explanation

Adding more RAM will enable you to run more simultaneous VMs.

Submit

170. What technology enables 802.11n networks to make multiple simultaneous connections and thus improve speed over previous Wi-Fi standards?

Explanation

The multiple in/multiple out (MIMO) technology implementing multiple antennas enables 802.11n networks to run at much faster speeds than previous Wi-Fi networks.

Submit

171. What printing process uses heat-sensitive plastic film embedded with various color dyes?

Explanation

Dye-sublimation printers use heat-sensitive plastic film embedded with various color dyes.

Submit

172. How many PATA hard drives can you have on a system with two PATA hard drive controllers?

Explanation

Each controller supports two drives.

Submit

173. Which is the most complete list of file systems Windows can use?

Explanation

Modern versions of Windows can use FAT (FAT16), FAT32, and NTFS for hard drives, and FAT64 for removable flash-media drives.

Submit

174. Which of the following root keys contains the data for a system's non-user-specific configurations?

Explanation

The system's non-user-specific configurations are stored in the HKEY_LOCAL_MACHINE root key of the Registry.

Submit

175. You are down under your desk organizing some wires when you notice that the activity light on your NIC is blinking erratically. Is there a problem?

Explanation

The lights should be blinking to show activity - this is normal.

Submit

176. Which protocol can you use to send e-mail?

Explanation

You can use Simple Mail Transfer Protocol (SMTP) to send e-mail messages.

Submit

177. Clara's laptop has a DVI connector to which she has connected a projector. As she prepares to make her presentation, however, nothing comes on the projector screen. The laptop shows the presentation, and the projector appears to be functional, with a bright white bulb making a blank image on the screen. What's the most likely problem?

Explanation

Clara needs to press the Function key combination on her keyboard to cycle through monitor modes.

Submit

178. Which mobile operating system requires a third-party software firewall?

Explanation

Only Android requires a third-party software firewall

Submit

179. What voltages does an ATX12V P1 connector provide for the motherboard.

Explanation

An ATX12V power supply P1 connector provides 3.3, 5, and 12 volts to the motherboard.

Submit

180. What is the name for the common omni-directional antennas found on wireless access points?

Explanation

Standard omni-directional antennas are called dipole antennas

Submit

181. Which optical disc type offers the most capacity for writing and rewriting data files?

Explanation

BD-RE offers the highest rewritable capacity of the discs mentioned here.

Submit

182. What is the difference between a virtual machine (VM) and an emulator?

Explanation

An emulator converts from one platform to another, whereas a virtual machine mirrors the host machine.

Submit

183. What do you need to install a legal copy of Windows 8.1 into a virtual machine using VMware Workstation?

Explanation

You need a copy of the Windows installation media to install Windows

Submit

184. Which device enables you to extend the capabilities of a wireless network?

Explanation

A wireless access point (WAP)) enables you to extend the capabilities of a wireless network.

Submit

185. Joyce notices her GPS map app gives the error "GPS coordinates not available." What should she try first?

Explanation

Joyce needs to move her butt to a place where she can get a good GPS signal

Submit

186. Which of the following tools would enable you to stop a user from logging on to a local machine but still enable him to log on to the domain?

Explanation

You can use Local Security Policy to stop someone from logging on to a local machine.

Submit

187. What program does Microsoft include with Windows to partition and format a drive?

Explanation

Windows uses the Disk Management console to partition and format a drive.

Submit

188. What command, identical in both Windows and Linux, will tell you the name of the computer?

Explanation

Type [hostname] and press ENTER to discover the hostname for just about any computer.

Submit

189. What benefit does full-duplex offer?

Explanation

Full-duplex technology enables NICs to send and receive signals at the same time.

Submit

190. With a laser printer, what creates the image on the photosensitive drum?

Explanation

The laser imaging unit creates an image on the photosensitive drum.

Submit

191. What pass rate should you strive for on the practice questions?

Explanation

You should not take either exam until you are consistently getting at least 90% on the practice exams.

Submit

192. A PC's power supply provides DC power in what standard configuration?

Explanation

The standard PC power supply configuration has three primary voltage rails, one each for 12-volt, 5-volt, and 3.3-volt connectors.

Submit

193. Which of the following represent invalid port to protocol matchups? (select two)

Explanation

Remote Desktop Protocol (RDP) uses port 3389, Hypertext Transfer Protocol Secure (HTTPS) uses port 443; HTTP uses port 80.

Submit

194. Henry bought a new card for capturing television on his computer. When he finished going through the packaging, though, he found no driver disc, only an application disc for setting up the TV capture software. After installing the card and software, it all works flawlessly. What is the most likely explanation?

Explanation

Most likely the device has an option ROM, because it works.

Submit

195. Where does Windows store device drivers?

Explanation

Windows stores device drivers in the Registry

Submit

196. You've lost your iPnone. What would you use to try to find it?

Explanation

Apple's iPhone uses the Find My iPhone feature of iCloud

Submit

197. What is the name of the command-line version of the Task Manager?

Explanation

The tasklist command opens the command-line version of the Task Manager.

Submit

198. Which command do you use to determine your exact folder location (path) in Linux?

Explanation

The pwd command enables you to determine the current folder location in Linux.

Submit

199. What does Microsoft call the 32- or 64-bit installation environment in Windows 7?

Explanation

Microsoft calls the 32- or 64-bit installation environment in Windows 7 the Windows Preinstallation Environment, or WinPE

Submit

200. Which of the following 802.11 standards functions only on the 5-GHz band?

Explanation

The 802.11ac standard functions exclusively on the 5-GHz band, while 802.11g functions on 2.4 GHz, 802.11n functions on both, and 802.11i is a security standard called WPA2.

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