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CITX 1110 > Ch 1-8 Checkpoint > Flashcards

Ch 1-8 Checkpoint Flashcards

1
Q

What three voltages are commonly provided by the power supply to the various components inside the computer?

A

3.3 volts, 5 volts, 12 volts

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2
Q

Hard drives in a grocery warehouse keep failing because of the adverse warehouse environment. What would be a possible solution for this high failure rate?

A

Install a SSD drive in each computer.

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3
Q

A server administrator needs to set up a new server with disk fault tolerance technology. The administrator decides to deploy RAID 0+1 technology. What is the minimum number of disks needed to deploy the disk array setting?

A

4

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4
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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5
Q

A desktop user has requested the ability to easily transfer photos from a camera SD card to a computer. Which device can be installed on the desktop computer to fulfill this request?

A

media reader

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6
Q

Which is the correct procedure to put out a fire with a fire extinguisher after the pin is pulled?

A

Aim at the base of the flame, squeeze the lever, and sweep from side to side.

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7
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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8
Q

What can be tested with a digital multimeter?

A

quality of electricity in computer componenets

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9
Q

Which disk management tool scans the critical files of an operating system and replaces the corrupt files?

A

System File Checker

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10
Q

Which action can reduce the risk of ESD damage when computer equipment is being worked on?

A

working on a grounded antistatic mat

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11
Q

When a used CPU is being installed, what two items should be used to clean the top of the CPU and the base of the heat sink before applying thermal compound?

A

isopropyl alcohol, lint-free cloth

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12
Q

A technician is troubleshooting a problem where many websites return a “certificate not valid” error. The technician notices that the date and time are not current and resets these to the correct settings. The previously inaccessible websites are now accessible. However, when the computer is restarted the same problem reoccurs. What can the technician do to prevent the date and time from resetting?

A

Replace the CMOS battery

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13
Q

Which two hardware features would a technician monitor within the BIOS if a computer was suspected of overheating?

A

CPU clock speed, CPU fan speed

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14
Q

What component can be replaced and upgraded on a PC to increase the data processing speed?

A

CPU

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15
Q

What are two effects of not having a preventive maintenance plan for users and organizations?

A

increased repair costs, increased downtime

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16
Q

Which three actions should be part of a regular computer preventive maintenance plan?

A
  • removing dust from fan intakes, the power supply, and peripherals
  • installing appropriate security updates
  • removing unused or unwanted programs
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17
Q

If a technician is unable to create a backup of data on a customer computer, what three pieces of information should the technician include on the liability release form signed by the customer before beginning work?

A
  • permission to work on the computer without a current backup available
  • a release from liability if data or corrupted
  • a description of the work to be performed
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18
Q

What is the first step in the troubleshooting process?

A

Ask the user direct questions about the issue.

19
Q

After performing a preventive maintenance on a PC, the technician powers on the PC only to find that nothing happens. What is the most likely problem?

A

It runs multiuser applications.

20
Q

What technology was created to replace the BIOS program on modern personal computer motherboards?

A

UEFI

21
Q

On which two occasions is it most likely that a technician will have to perform a clean operating system installation if a backup has not been performed?

A
  • the existing operating system is corrupted

- a new replacement hard drive is installed in a computer

22
Q

Which key or key sequence pressed during the boot process will allow a user to start a Windows PC using the last known good configuration?

A

F8

23
Q

In which folder are application files for 32-bit programs typically located on a computer that is running a 64-bit edition of Windows 7?

A

C:Program Files (x86)

24
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

25
Q

What does virtual memory provide to an operating system?

A

a temporary storage of data until enough RAM is available to process it

26
Q

A PC technician is having trouble with a Windows-based system and wants to perform a system restore from the command prompt. What command would start this process?

A

rstrui

27
Q

A technician is attempting to create virtual machines on a PC but wants to ensure that the physical system resources used by the virtual machines are directly managed by them and not by the host operating system. How can the technician accomplish this?

A

Set up the virtual machines using a native hypervisor.

28
Q

A company has a preventive maintenance policy that requires every computer have a new restore point created every six months. For computers using the Windows 7 operating system, how can a technician create the restore point?

A

Choose Start > All Programs > Accessories > System Tools > System Restore > Next.

29
Q

A user notices that some of the programs that are installed before upgrading to Windows 7 no longer function properly. What can the user do to fix this problem?

A

Reinstall the programs in Compatibility Mode.

30
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?

A
  • data is more secure in the event of hardware failures

- data resources and access are centrally controlled

31
Q

At which TCP/IP model layer would a MAC address be found?

A

network access

32
Q

A technician needs to add a new wireless device to a small WLAN. The WLAN is a mixture of old and newer 802.11b and 802.11g devices. What choice for the new device would provide the most interoperability for present and future growth?

A

Add a new 802.11n device.

33
Q

A customer who wants to enhance home network security is shopping for devices. The sales representative recommends a device that has a hardware firewall. Which device can provide this service?

A

integrated router

34
Q

Copper network cables consist of pairs of wires that are twisted together. Which type of signal interference is reduced or prevented by this?

A

crosstalk

35
Q

A computer is assigned an IP address of 169.254.33.16. What can be said about the computer, based on the assigned address?

A

It cannot communicate outside its own network

36
Q

A user is configuring a wireless access point and wants to prevent any neighbors from discovering the network. What action does the user need to take?

A

Disable SSID broadcast

37
Q

A home user was successfully browsing the Internet earlier in the day but is now unable to connect. A ping command from a wireless laptop to a wired PC in the LAN is successful, but the nslookup command fails to resolve a website address. The user decides to analyze the LEDs on the Linksys router to verify connectivity. Which LED should be of main concern in this situation?

A

Internet LED

38
Q

Why would an administrator use Windows Remote Desktop and Windows Remote Assistant?

A

to connect to a remote computer over the network to control its applications and data

39
Q

A corporation has expanded to include multiple remote offices around the globe. Which technology should be used to allow the remote offices to communicate and share network resources privately?

A

VPN

40
Q

What physical layer medium is used by DSL to provide high-speed data communications?

A

telephone lines

41
Q

The current IP configuration of a small company 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 would simplify the workstation IP configuration task?

A

DHCP

42
Q

What is the function of the DNS server?

A

it maps a hostname to a corresponding IP address

43
Q

A computer can access devices on the same network but cannot access devices on other networks. What is the probable cause of this problem?

A

The computer has an invalid default gateway address

CITX 1110 (5 decks)

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