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IT Essentials > A Final > Flashcards

A Final Flashcards

1
Q

What is the purpose of RAID adapters?

A

to connect multiple storage devices for redundancy or speed

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2
Q

Which type of interface should a customer choose if connecting a single cable from a Microsoft Windows computer to output both audio and video to a high definition television?

A

HDMI

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3
Q

Which type of input device can identify users based on their voice?

A

switchbiometric identification device

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4
Q

What type of external storage should be used by a technician to back up over 2 TB of music and video data files?

A

External Hard Drive

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5
Q

What type of device provides power to a computer and allows it to be safely shut down in the event of a power loss?

A

Uninterruptible power supply

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6
Q

Which measure can help control RFI effects on wireless networks?

A

Ensure the wireless network is on a different frequency than the offending source.

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7
Q

What is the purpose of a Safety Data Sheet?

A

to specify procedures for dealing with potentially hazardous materials

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8
Q

What can be tested with a digital multimeter?

A

quality of electricity in computer components

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9
Q

When should a technician avoid wearing an antistatic wrist strap?

A

when replacing a power supply unit

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10
Q

Which solution should be used to clean a CPU and a heat sink?

A

isopropyl alcohol

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11
Q

Which two types of expansion slots would be used by a wireless NIC in a computer today? (Choose two.)

A

PCI

PCIe

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12
Q

When a PC is being assembled, what component is connected to the motherboard with a SATA cable?

A

the optical drive

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13
Q

A technician is troubleshooting a computer that is experiencing hardware failure detected by the BIOS. What is one way this failure is indicated?

A

the computer emits a pattern of beeps indicating the failing device

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14
Q

Which three features can be configured in the BIOS settings to secure a computer? (Choose three.)

A

drive encryption
TPM
Passwords

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15
Q

What is the most important reason for a company to ensure that computer preventive maintenance is done?

A

Preventive maintenance helps protect the computer against future problems

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16
Q

A technician opens up a PC to work on it, and finds that it is very dusty inside. What should the technician do?

A

Use a can of compressed air to remove excess dust

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17
Q

Which built-in tool is available on a Mac OS X machine to perform disk backups?

A

Time machine

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18
Q

A computer technician performed a number of actions to correct a problem. Some actions did not solve the problem, but eventually a solution was found. What should be documented?

A

everything that was done to try to solve the problem

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19
Q

After a computer is powered on, Windows 7 fails to start. What initial procedure would a technician use to deal with this failure?

A

Boot from a Windows 7 installation media and access the System Restore utility.

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20
Q

What are two advantages of the NTFS file system compared with FAT32? (Choose two.)

A

NTFS supports larger files.

NTFS provides more security features.

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21
Q

What type of hard drive contains flash memory for caching frequently used data but stores the most of the data on a magnetic hard disk drive?

A

solid state hybrid disk

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22
Q

What does %USERPROFILE% represent in the path C:Users%USERPROFILE%AppDataLocalTemp?

A

an environment variable that is set by the operating system

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23
Q

A technician notices that an application is not responding to commands and that the computer seems to respond slowly when applications are opened. What is the best administrative tool to force the release of system resources from the unresponsive application?

A

Task Manager

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24
Q

A technician has installed a new sound card in a PC but it is not operating correctly. Where should the technician look to investigate driver problems?

A

Device Manager

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25
Q

Which technology provides a solution for PC virtualization?

A

hypervisor

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26
Q

What are two consequences of setting an incorrect boot order in the system BIOS? (Choose two.)

A
  • The computer displays a “BOOTMGR is missing” error after POST.
  • The computer displays an “Invalid Boot Disk” error after POST.
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27
Q

A network administrator has finished migrating from a peer-to-peer network to a new client-server network configuration. What are two advantages of the new configuration? (Choose two.)

A

Data is more secure in the event of hardware failures.

Data resources and access are centrally controlled.

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28
Q

Which layer of the OSI model is responsible for physical addressing and the procedures used to access media?

A

data link

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29
Q

The current IP configuration of a medium size company with several subnets is done manually and is time-consuming. Because of increased network growth, a technician needs a simpler way for IP configuration of workstations. Which service or protocol would simplify the workstation IP configuration task?

A

DHCP

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30
Q

Several messages sent to the network administrator are reporting that access to a secure server using HTTPS is failing. After checking recent updates to the company firewall, the administrator learns that the firewall is blocking HTTPS. Which port should be opened to solve the problem?

A

443

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31
Q

Which two commands could be used to check if DNS name resolution is working properly on a Windows PC? (Choose two.)

A

nslookup cisco.com

ping cisco.com

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32
Q

Which wireless security mode supports government grade security and offers both personal and enterprise authentication?

A

WPA2

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33
Q

Which Cloud computing service would be best for an organization that needs to collaboratively create applications and deliver them over the web?

A

PaaS

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34
Q

A network administrator occasionally asks a technician to make sure that dust does not accumulate on devices in the network equipment closets. What is the purpose of having the technician do this job?

A

Dust can cause network equipment to overheat and cause problems on the network

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35
Q

A technician installed a network adapter in a computer and wants to test network connectivity. The ping command can receive responses from workstations on the same subnet but not from remote workstations. What could be causing the problem?

A

The default gateway is incorrect

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36
Q

What are three common input devices found on laptops? (Choose three.)

A

touchpad
fingerprint reader
web camera

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37
Q

A user calls the help desk to report that a mobile device exhibits very slow performance. What could cause this problem?

A

an app is not compatible with the device

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38
Q

A computer technician has decided that a problem with a laptop can be solved by repairing a hardware component. What should be done first before attempting to repair a hardware component on a laptop?

A

Consult the service manual for the laptop

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39
Q

Which closed-ended question would be appropriate for a technician to use to narrow down the possible problems on a laptop that will not power on?

A

Can the laptop operate using the AC adapter

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40
Q

A technician is troubleshooting the appearance of flashing lines on a laptop screen. What are two possible causes of this distortion? (Choose two.)

A

The GPU is not cooling correctly

The display is not correctly installed

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41
Q

What is an indication that the battery in a mobile device could become physically hazardous and should be immediately replaced?

A

If there are signs of swelling

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42
Q

Refer to the exhibit. What is true of this mobile device screen? (( a windows phone is shown))

A

Text messages, news, photos and other content can be displayed in the different tiles.

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43
Q

What are two potential risks that could result from rooting or jailbreaking a mobile device? (Choose two.)

A

enabling app access to the root directory

not properly creating or maintaining sandboxing features

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44
Q

What two tasks should be done regularly to preserve the security and integrity of data and applications on mobile devices. (Choose two.)

A

Backup user data on a regular basis

Ensure that the operating system software and applications contain the latest updates

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45
Q

A tire store needs to use carbon copy paper to print customer invoices so that both the store and the customer have a copy. What is the best printer solution?

A

impact printer

46
Q

A user on a home network wants to share a printer from a Windows 7 computer. What must the user do in order for other Windows 7 computers in the house to obtain the proper driver?

A

Nothing. Windows automatically provides the driver

47
Q

Which three components are typically found in laser printer maintenance kits? (Choose three.)

A

fuser assembly
pickup rollers
transfer rollers

48
Q

What characterizes a DDoS attack?

A

many hosts participated in a coordinated attack

49
Q

What guideline should be followed when establishing a password security policy?

A

An expiration period should be established so that passwords frequently change.

50
Q

What are three features provided by the TPM module? (Choose three.)

A

security for user authentication information
application license protection
storage of digital certificates

51
Q

What is the next troubleshooting step after a theory of probable cause has been established?

A

test the theory to determine cause

52
Q

Once a technician understands a customer complaint, it is common to ask closed-ended questions. Which question is a close-ended one?

A

Is this the first time the error occured

53
Q

What is a characteristic of the open source license of an application software?

A

It allows users to modify and share the source code.

54
Q

Chad, a level one call center technician, receives a customer phone call. The customer has an issue that Chad does not have the knowledge to answer. The customer is irritated that Chad cannot provide immediate assistance. Which two things should Chad do next? (Choose two.)

A

Document the reason the customer called and create a support ticket.
Escalate the customer to a level two technician

55
Q

6.Users in an office complain that they are receiving “Document failed to print” messages when trying to print to a network printer. What is a likely problem?

A

The printer has an incorrect IP address.

56
Q

A technician is troubleshooting a Windows 7 computer that displays an “Invalid Boot Disk” error message. What would be the most likely action the technician should perform to correct the issue?

A

Use the System Recovery Options to select the correct active partition.

57
Q

When a user tries to run a program, a missing or corrupt DLL message is displayed. What are two possible solutions to this problem? (Choose two.)

A

Run sfc/scannow in Safe Mode.

Reinstall the program that is associated with the corrupt DLL file.

58
Q

What can help control the effect of RFI on a wireless LAN?

A

Ensure the wireless network is on a different frequency than the offending source.

59
Q

A technician wants to allow users to backup and restore all the files on their computers, but does not want the users to be able to make changes to the system. How should the technician give users this functionality?

A

Make the users members of a group called Backup Operators.

60
Q

skip

A

skip

61
Q

Why do laptop computers use CPU throttling techniques?

A

to reduce the heat that the CPU may generate

62
Q

What tool is included in the Mac OS X for backing up disks to image files and recovering disk images?

A

Disk Utility

63
Q

A new technician has joined the IT team and is about to service a heavy printer. Which two precautions should be taken to avoid any injury when transporting the heavy printer to the service area? (Choose two.)

A

Avoid lifting the equipment using the strength in your back.

Lift the equipment using the strength in your legs and knees.

64
Q

Skip

A

skip

65
Q

Which two operations can help prevent a mobile device from being tracked without permission? (Choose two.)

A

Turn off the GPS when not in use.

Disable or remove apps that allow connections to the GPS.

66
Q

What is a characteristic of a computer power connector?

A

A SATA power connector is used to connect to a hard disk drive or an optical drive.

67
Q

Which expansion card can assist in troubleshooting a computer problem when no video is available?

A

POST card

68
Q

68.Which two PC settings can be configured using the BIOS setup utility? (Choose two.)

A

virtualization support

boot sequence

69
Q

What factor should be taken into consideration more with laptops than with desktops?

A

environmental control

70
Q

70.What are three benefits of computer preventive maintenance? (Choose three.)

A

improvement in data protection
extension of the life of components
reduction in the number of equipment failures

71
Q

Which step in the troubleshooting process is important to help avoid repeating repair processes that were performed previously?

A

documentation of the problem and its solution

72
Q

A computer user complains of a computer that freezes up after about five minutes of use. The technician checks the computer BIOS to see if there might be a configuration problem that is causing the computer to behave consistently in this manner. While the technician is reviewing the information, the computer once again freezes. What is the probable cause of the computer problem?

A

The CPU fan is not functioning

73
Q

Why is a full format more beneficial than a quick format when preparing for a clean OS installation?

A

A full format will delete files from the disk while analyzing the disk drive for errors

74
Q

What is the default file system used during a fresh installation of Windows 7?

A

NTFS

75
Q

What is the first step an administrator should take when splitting a single partition into multiple partitions?

A

Shrink the partition

76
Q

A user notices that some of the programs that are installed before upgrading Windows to a new version no longer function properly after the upgrade. What can the user do to fix this problem?

A

run the programs in Compatibility Mode

77
Q

After a Windows operating system has been installed, which program would a technician use to select the programs that will run at startup?

A

msconfig

78
Q

Which type of network spans a single building or campus and provides services and applications to people within a common organizational structure?

A

LAN

79
Q

What are the four layers in the TCP/IP reference model?

A

application
transport
internet,
network access

80
Q

80.A user wants to map a network drive on a PC that is named “WORK2” and runs Windows 7. The name of the shared resource the user wishes to map to is called “installs” and is located on a workstation called “WORK1”. What would be the correct path for mapping the network drive?

A

\work1installs

81
Q

A customer who travels frequently wants to know which technology is the most suitable for being connected to the corporate network at all times at low cost. Which network technology would a network administrator recommend?

A

cellular

82
Q

What is the difference between cloud computing and a data center?

A

Cloud computing solutions are network resources and services provided to the clients through the use of services from data centers.

83
Q

A user complains about being unable to connect to the wireless network. Which two actions should be part of troubleshooting the wireless connection? (Choose two.)

A

Try moving the laptop to different places to see if a signal can be detected.
Verify in the laptop software whether any wireless networks are detected.

84
Q

A technician installed a network adapter in a computer and wants to test network connectivity. The ping command can only receive a response from local workstations. What could be causing the problem?

A

The default gateway is not set

85
Q

An ISP help desk technician receives a call from a customer who reports that no one at their business can reach any websites or get their e-mail. After testing the communication line and finding everything fine, the technician instructs the customer to run nslookup from the command prompt. What does the technician suspect is causing the customer’s problem?

A

failure of DNS to resolve names to IP addresses

86
Q

A technician is asked to configure the time that the system must be idle before the hard disk spins down on all the Windows-based laptops in the company. The technician configured the power options in Windows but it appears to have no effect. Where should the technician look to enable power management?

A

BIOS

87
Q

A technician needs to configure a Bluetooth headset for a laptop user. Which two steps should the technician take before installing the headset? (Choose two.)

A

Enable Bluetooth in BIOS Setup.

Ensure that the laptop Bluetooth switch is enabled.

88
Q

What laptop component converts DC power to AC so that the display can illuminate?

A

inverter

89
Q

A user downloads a widget onto his Android phone but is puzzled to see that when the widget is touched an app is launched. What is a possible cause?

A

The widget is associated with the app and this is the normal behavior.

90
Q

Which component uses the greatest amount of power on most mobile devices?

A

LCD Screen

91
Q

What is the purpose of using the MIME email protocol on mobile devices?

A

to enable pictures and documents to be included in email messages

92
Q

What is an indication that the battery in a mobile device could become physically hazardous and should be immediately replaced?

A

if there are signs of swelling

93
Q

A technician is explaining the differences between inkjet printers and laser printers to a customer. Which two comparisons should the technician make? (Choose two.)

A

Inkjet printers are less expensive as an initial purchase than laser printers.
The laser printer output is dry after printing, but an inkjet printer may still have wet ink on the paper after printing.

94
Q

For cleaning a laser printer, what should be used to pick up excess particles of toner?

A

a HEPA capable vacuum

95
Q

Which two password control policies should an organization implement to ensure strong passwords? (Choose two.)

A

Passwords should be set to expire every 60 days

Passwords should contain letters and numbers

96
Q

A computer technician has been asked to secure all Windows 7 computers by encrypting all the data on each computer. Which Windows feature should be used to provide this level of encryption?

A

Bitlocker

97
Q

The activity of a previously unknown program triggers an alert by Windows firewall. What three options will the user have for dealing with this event? (Choose three.)

A

Keep blocking
Unblock
Ask me later

98
Q

A technician suspects that a security issue is causing problems with a computer. What two actions could be performed to test theories of probable cause when troubleshooting the PC? (Choose two.)

A

Log in as a different user.

Disconnect the computer from the network.

99
Q

A call center technician answers a call from a frequent customer who is known to be impatient and lacks experience with computers. The customer has an issue with an application that the call center supports. The customer informs the technician that the problem had been reported before but the original technician was rude, did not listen, and did not fix the problem. If the technician is confident that the problem can be resolved by increasing the amount of memory in the computer, what should the technician do?

A

Confirm the issues and give detailed instructions to solve the problem.

100
Q

What expectation is defined in the service level agreement between an organization and service vendor?

A

guaranteed service response time

101
Q

In which circumstance should a level one technician initiate an escalated work order?

A

when a problem requires expertise from another technician

102
Q

An application appears frozen and is not responding to a mouse or the keyboard. What Windows OS tool can be used to stop the application?

A

Task Manager

103
Q

Which two issues are likely to cause BSOD errors? (Choose two.)

A

RAM failing

Device driver errors

104
Q

A user has installed a new FTP client on a computer, but is unsuccessful in connecting to an FTP server. Which two key pieces of information should the user ensure are configured correctly on the FTP client? (Choose two.)

A

FTP server IP address

FTP server port number

105
Q

A technician who is working on an employee’s laptop finds that a number of files that were encrypted on a network server drive are present on the laptop drive in unencrypted form. What could cause this problem?

A

The new computer doesn’t have an NTFS partition.

106
Q

FTP(data) Port

A

FTP(data) is 20

107
Q

SMTP Port

A

SMTP is 25

108
Q

HTP Port

A

HTP is 80

109
Q

IMAP Port

A

IMAP is 143

110
Q

HTTPS Port

A

HTTPS is 443

111
Q

RDP Port

A

RDP is 3389

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