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Computer Maintenance > Chapter 1 > Flashcards

Chapter 1 Flashcards

1
Q

What are two factors that must be considered when choosing a computer case? (Choose two.)
A. The size of the monitor
B. The speed of the memory
C. The number of internal drive locations
D. The size of the motherboard and the power supply
E. The number of LED indicators at the front of the case

A

C AND D

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2
Q 
A technician looks at a motherboard and sees a 24-pin connector. What component would connect to the motherboard through the use of this 24-pin connector?
A. Power supply
B. Video card
C. PATA optical drive
D. SATA drive
E. Floppy drive
A

A

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3
Q 
What electrical unit refers to the number of electrons moving through a circuit per second?
A. Current
B. Voltage
C. Resistance
D. Power
A

A

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4
Q

What characteristic of electricity is expressed in watts?
A. The amount of work required to move electrons through a circuit
B. The resistance to the flow of current in a circuit
C. The amount of electrons flowing through a circuit per second
D. The work required to move electrons through a circuit multiplied by the number of electrons flowing through a circuit per second

A

D

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5
Q 
Which type of memory is primarily used as cache memory?
A. DRAM
B. RAM
C. ROM
D. SRAM
A

D

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6
Q 
Which component controls the communications and interactions between the CPU and other components on the motherboard?
A. RAM
B. BIOS
C. CMOS
D. Chipset
A

D

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7
Q

Which two activities are normally controlled by the Northbridge part of the chipset? (Choose two.)
A. Communication between the CPU and the I/O ports
B. Access to the RAM
C. Communication between the CPU and the hard drive
D. Access to the video card
E. Communication between the CPU and the sound card

A

B AND D

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8
Q 
Which unit of measurement is used to indicate the hard drive speed?
A. Revolutions per minute
B. Gigabytes
C. Pages per minute
D. Clusters per minute
A

A

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9
Q 
Which type of interface was originally developed for high-definition televisions and is also popular to use with computers to connect audio and video devices?
A. Firewire
B. DVI
C. HDMI
D. USB
E. VGA
A

C

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10
Q 
Which two devices are considered input devices? (Choose two.)
A. Biometric authentication device
B. Printer
C. Digital camera
D. Projector
E. Speakers
A

A AND C

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11
Q

What is indicated by the contrast ratio of a monitor?
A. The difference in the intensity of light between the brightest white and darkest black that can be displayed
B. How often the picture image is refreshed
C. The total number of pixels that make up the picture
D. The ratio of the horizontal and vertical viewing areas of the monitor

A

A

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12
Q 
What type of connector can be used to connect an internal hard drive to the motherboard?
A. USB
B. SATA
C. Esata
D. Thunderbolt
A

B

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13
Q

Which two factors must be considered when replacing old RAM modules in a PC? (Choose two.)
A. The new RAM must be compatible with BIOS or UEFI.
B. The new RAM must be compatible with the motherboard.
C. The speed of the new RAM must be supported by the chipset.
D. The power supply must provide the voltage that is required by the new RAM.
E. The new RAM must match the old RAM in terms of capacity and speed.

A

B AND C

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14
Q 
Which term is used to define the wires on a motherboard that move data from one part of a computer to another?
A. Bus
B. I/O card
C. Bridge
D. Chipset
A

A

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15
Q 
When a new PC is being built, which component has the most influence when selecting the case and power supply?
A. Video card
B. Sound card
C. RAM module
D. Motherboard
E. Hard disk type
A

D

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16
Q

What is the function of the power supply?
A. To convert AC power into a lower voltage DC power
B. To convert AC power into a higher voltage DC power
C. To convert DC power into a lower voltage AC power
D. To convert DC power into a higher voltage AC power

A

A

17
Q 
Which two considerations would be of the greatest importance when building a workstation that will run multiple virtual machines? (Choose two.)
A. Amount of RAM
B. Number of CPU cores
C. Water cooling
D. Powerful video card
E. High-end sound card
A

A AND B

18
Q 
A user playing a game on a gaming PC with a standard EIDE 5400 RPM hard drive finds the performance unsatisfactory. Which hard drive upgrade would improve performance while providing more reliability and more energy efficiency?
A. A 7200 RPM EIDE hard drive
B. A 7200 RPM SATA hard drive
C. A 10,000 RPM SATA hard drive
D. An SSD
A

D

19
Q 
What three components should be included in a computer that is used to create TV commercials and music videos? (Choose three.)
A. Extra DIN-6 ports
B. Specialized video card
C. Extra PS/2 ports
D. Large and fast hard drives
E. VGA adaptors
F. Specialized audio card
A

B, D, AND F

20
Q 
What are two hardware requirements for computers that will be used to run multiple virtual machines? (Choose two.)
A. Large amounts of RAM
B. A multicore CPU
C. A high resolution video card
D. A high speed wireless adapter
E. Multiple monitors
A

A AND B

21
Q 
Which memory technology allows two memory modules to be accessed at the same time?
A. Dual channel
B. Double-sided
C. SRAM
D. ECC
A

A

22
Q 
Which security feature in modern cpus protects memory areas that contain part of the operating system from malware attacks?
A. Encryption
B. TPM
C. Execute disable bit
D. Lojack
A

C

23
Q

Data striping without redundancy

Highest performance

A

RAID 0

24
Q

Disk mirroring

High performance and high protection because all data is duplicated

A

RAID 1

25
Q

Combination of data striping and parity

Ability of data to be rebuilt with information from the other drives

A

RAID 5

26
Q

Connects a keyboard or a mouse to a computer

A

PS/2

27
Q

Multimedia interface initially developed for TV

A

HDMI

28
Q

Connector for analog video

A

VGA

29
Q

Connector for coaxial cables

A

BNC

30
Q

Connects to device using the Mini DisplayPort adapter

A

Thunderbolt

31
Q 
Which three devices are considered output devices? (Choose three.)
A. Headphones
B. Keyboard
C. Fingerprint scanner
D. Monitor
E. Mouse
F. Printer
A

A, D, AND F

32
Q 
Which hardware upgrade would allow the processor in a gaming PC to provide the optimal gaming performance?
A. A fast EIDE drive
B. Large amounts of fast RAM
C. Liquid cooling
D. A high capacity external hard drive
A

B

33
Q 
Which two storage devices use a magnetic medium for storing data? (Choose two.)
A. Tape drive
B. Solid state drive
C. Hard disk drive*
D. Compact disk drive
E. Blue-ray disk drive
A

A

34
Q

Which two pieces of information are needed before selecting a power supply? (Choose two.)
A. The total wattage of all components
B. The voltage requirements of peripheral devices
C. The form factor of the case*
D. The type of CPU
E. The installed operating system

A

A

35
Q 
Which memory module has a front side bus speed of 200 MHz?
A. DDR3-667
B. PC100 SDRAM
C. DDR-400
D. DDR-333
A

C

36
Q 
Refer to the exhibit. Which type of video card expansion slot is depicted?
A. PCIe
B. ISA
C. PCI
D. AGP
A

D

37
Q 
What type of connector can be used to connect an esata interface to an external SATA drive?
A. 7-pin connector
B. 9-pin connector
C. 15-pin connector
D. 5-pin connector
A

A

38
Q 
Where can the input voltage selection be changed from 110 volts to 220 volts on a computer system?
A. On the motherboard
B. In the BIOS
C. On the back of the power supply
D. In the operating system control panel
A

C

Computer Maintenance (1 decks)

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