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CompTia A+ - 220-801 > Hardware 3 > Flashcards

Hardware 3 Flashcards

1
Q

What are the form factors for computer cases?

A

Desktop and tower

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2
Q

A molex keyed connector connects to _______

A

Optical drives, hard drives and other devices that uses older technology.

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3
Q

A berg keyed connector connects to a _________.

A

Floppy drive. A berg is smaller than a molex connector.

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4
Q

What does a SATA connector connect to?

A

A SATA keyed connector connects to an optical drive or hard drive. SATA connector is wider and thinner than a molex connector.

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5
Q

Older standard power supplies used 2 connectors called _____ and _____ to connect to the motherboard.

A

P8 P9

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6
Q

What factors should be considered when choosing a case?

A

Size of the motherboard, number of external/ internal drives and available space.

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7
Q

What memory module has a front side bus speed of 200 MHZ?

A

DDR-400

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8
Q

What type of memory is primarily used as cache memory?

A

SRAM

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9
Q

Which two considerations would be of the greatest importance when building a workstation that will run multiple virtual machines? (Choose two.)

high-end sound card

number of CPU cores

water cooling

powerful video card

amount of RAM

A

Number of Cpu cores and amount of RAM

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10
Q

Where can the input voltage selection be changed from 110 volts to 220 volts on a computer system?

A

On the back of the power supply.

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11
Q

What two activities are normally controlled by the Northbridge part of the chipset?

A

Access to the RAM and Access to the video card

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12
Q

Which technology would be best to use for drive redundancy and data protection?

A

RAID

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13
Q

A network administrator currently has three servers and needs to add a fourth, but does not have enough room for an additional monitor and keyboard. Which device allows the administrator to connect all the servers to a single monitor and keyboard?

A

KVM switch

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14
Q

What is a possible use for virtual computing?

A

to allow users to browse the Internet without the risk of malware infecting the host software installation

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15
Q

What is the function of the power supply?

A

to convert AC power into a LOWER voltage DC power

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16
Q

What is EMI

A

Electromagnetic interference (EMI) is the intrusion of outside electromagnetic signals in a transmission media, such as copper cabling. In a network environment, EMI distorts the signals so that the receiving devices have difficulty interpreting them.

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17
Q

The performance of a computer is reduced after using the Internet. Which three tools could be run to try to improve the performance of the computer?

A

Defrag, Spyware remover and disk cleanup

18
Q

Which Windows XP command-line utility scans the critical files of the operating system and replaces any files that have been corrupted?

A

SFC - System File Checker

19
Q

Which tool would be used to create a partition on a hard drive?

A

Disk Management

20
Q

Which piece of software is designed to protect against unauthorized communications to and from a computer?

A

Firewire

21
Q

What are two examples of settings that can be changed in the CMOS settings? (Choose two.)

  1. boot order
  2. device drivers
  3. drive partition size
  4. swap file size
  5. enabling and disabling devices
A

Boot order

Enabling and disabling devices

22
Q

What is a function of the BIOS?

A

Performs a check on all internal components

23
Q

Where is the saved BIOS configuration data stored?

A

CMOS

24
Q

What is an advantage of using signed drivers?

A

They are verified to be compatible with the operating system.

25
Q

You are monitoring a new technician who is installing a device driver on a Windows-based PC. The technician asks why the company requires the use of signed drivers. What would be the best response to give?

A

A signed driver has passed the lab test of Microsoft for quality and helps prevent a system from being compromised.

26
Q

Which definition describes the term “overclocking”?
changing the bus speed of the motherboard to increase the speed of attached adaptors

  • increasing the speed of the CPU beyond the recommendations of the manufacturer
  • modifying the motherboard clocking crystal to increase the timing signals
  • replacing slower SDRAM with faster memory
A

Increasing the speed of the CPU beyond the recommendations of the manufacturer.

27
Q

Which website should a technician consult to find instructions for updating the BIOS on a computer?

A

Motherboard Manfacturer

28
Q

What are two features of the Lojack system? (Choose two.)

  • The Lojack system uses an Application Agent that is installed by the user.
  • It uses geotechnology to locate a lost computer.
  • It allows the user to deactivate the Persistence Module.
  • It prevents data from being retrieved from a hard drive if the hard drive is removed and installed into a different computer.
  • It emulates the characteristics of an entire computer system, including hardware, BIOS, operating system, and programs.
A
  • The lojack system uses an aplication agent that is installed by the user.
  • It uses geotechnology to locate a host computer
29
Q

Which two connectors are used to connect external peripherals? (Choose two.)

A

USB, PS/2

30
Q

Which procedure is performed last when installing a new motherboard?

A

Connect the peripheral devices

31
Q

What type of disk drives need to be configured with either a master/slave or auto-detect setting in order to work correctly?

A

PATA

32
Q

After a new PCIe video card is added, the computer seems to boot successfully but it will not display any video. The computer was working properly before the new video card was installed. What is the most likely cause of the problem?

A

The saved CMOS settings are set to use the built-in video adapter.

33
Q

Which two common computer problems could cause a motherboard to short-circuit? (Choose two.)

  1. a dusty CPU fan
  2. loose case screws
  3. a loose PATA cable
  4. bent drive cable pins
  5. unseated adapter cards
A

Loose case screws and unseated adapter cards.

34
Q

What device is most likely to be affected by an incorrect setting saved in CMOS or an incorrect jumper setting?

A

Hard drive

35
Q

Which task should be part of a software maintenance routine?

A

Defragment the hard drive

36
Q

After a workstation is upgraded from a single core to a new dual core CPU, a user complains that the workstation seems to be performing slower. The workstation is running Windows XP Professional as its operating system. A support technician opens the Task Manager - Resource Monitor and notices that only one CPU core is displayed. What is the possible cause of the problem?

A

The BIOS does not support a dual core CPU.

37
Q

What are two common problems that are encountered with PATA hard drives? (Choose two.)

  1. loose cable connections
  2. incorrect jumper settings
  3. incorrect drivers
  4. overheating
  5. .dirty read and write heads
A

Incorrect cable connections and incorrect jumper settings

38
Q

What is a symptom of a failing power supply?

A

The computer sometimes does not turn on.

39
Q

A user has noticed that the hard drive LED on the front of the computer has stopped working. However, the computer seems to be functioning normally. What is the most likely cause of the problem?

A

The hard drive LED cable has come loose from the motherboard.

40
Q

Fill in the bit( byte) speed
SATA I = _______
SATA II = _______
SATA III = _______

A

SATA I = 1.5 Gbps
SATA II = 3.0 Gbps
SATA III = 6.0 Gbps

41
Q

What is an EEPROM?

A

A read only memory whose contents can be erased and reprogrammed using pulsed voltage

42
Q

What is a CNR? (Communications and Networking Riser)

A

CNR is a riser card for ATX motherboards

CompTia A+ - 220-801 (8 decks)

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