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CompTIA+901 > CompTIA+901_Mock_1 > Flashcards

CompTIA+901_Mock_1 Flashcards

1
Q

Match the correct RAID type to the correct characteristic(s)

A

RAID 5
Lower cost-per-gigabyte than RAID 1. Uses striping with distributed parity. Highest fault tolerance.
RAID 0
A loss of a single disk in the stripe set destroys the data on the entire volume. Uses striping.
RAID 1
Uses mirroring

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2
Q

What should you do first to repair a drive that is acting sluggish?

A

Run Disk Defragmenter

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3
Q

What voltage does an orange, red, yellow, black pin indicate?

A

3.3 V, 5V, 12V, 0V

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4
Q

What represents the speed of the CPU?

A

Internal clock speed

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5
Q

How should you hold RAM when installing it?

A

By the edges

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6
Q

What is not held in the CMOS memory while the system power is off?

A

Operating system passwords

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7
Q

You’re selecting RAM for a new PC. You are very concerned about making sure errors are handled. Which types of RAM should you select?

A

ECC RAM

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8
Q

What should you do when upgrading a CPU in a laptop?

A
  1. Check documentation to see if the CPU is supported.

2. Employ antistatic measures.

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9
Q

What is the transfer rate of DDR2-800?

A

6,400 MB/s

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10
Q

Which is the fastest cache memory?

A

L1

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11
Q

You suspect that incorrect voltage is provided to a power supply. What tool should you use to test this?

A

Multimeter

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12
Q

What is the total data rate of an audio CD?

A

1411 kb/s

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13
Q

Which sockets could be used by a Core i5 CPU?

A

1155 - 1156

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14
Q

Which of the following are the differences between DDR3 SDRAM and DDR2 SDRAM?

A
  1. DDR3 is an improvement over DDR2.This answer is correct.
  2. DDR3 has the ability to transfer at twice the data rate of DDR2.
  3. DDR3 enables higher bus rates and higher peak rates than DDR2.
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15
Q

You are troubleshooting a computer that won’t power on. You have already checked the AC outlet and the power cord, which appear to be functioning properly. What should you do next?

A

Test the computer with a PSU tester.

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16
Q

Which of the following represent valid Intel socket types?

A

775, 1155, 1156, 1366, 1150, 2011

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17
Q

You are installing Windows to a PC with a RAID card. All cables are connected properly, but the install DVD does not detect any hard drives. Which of the following tasks should be performed next?

A

Select load driver.

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18
Q

What does the x refer to in Compact Disc technology

A

X= 150 KB/s

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19
Q

You’re consulting with a small budget conscious accounting firm. Each accountant keeps individual records on their PC and checks them in and out of a server. They are concerned about losing data if the server hard drive crash. Which of the following RAID levels would you recommend?

A

RAID 1

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20
Q

Which of the following optical media has the largest storage space?

A

Blu-ray

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21
Q

Which of the following devices on the motherboard is used for microprocessor mounting?

A

Socket

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22
Q

Which of the following is an error-checking scheme that is not capable of error correction and sometimes implemented in main memory?

A

Parity checking

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23
Q

Which component supplies power to the CMOS when the computer is off?

A

Lithium battery

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24
Q

You find out that a disgruntled ex-employee’s computer has a boot password that must be entered before the operating system is ever loaded. There is also a password preventing your access to the BIOS utility. Which of the following motherboard components can most likely be used to return the computer to a state that will allow you to boot the system without knowing the password?

A

Jumper

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25
Q

What is the last step of the six-step troubleshooting process?

A

Document findings

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26
Q

Where can you view how much RAM you have in the computer? (Select all that apply.

A
  1. BIOS
  2. System Windows
  3. Task Manager
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27
Q

Which of the following voltages are normally supplied by a PSU’s rails?

A

3.3V

5V

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28
Q

Which of the following technologies was developed specifically to allow SATA drives to be connected to a computer system externally without forfeiting any of the benefits of SATA?

A

eSATA

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29
Q

Which of the following is the delay it takes for the hard drive to access a particular sector on the disk?

A

Latency

30
Q

Which of the following statements best describes a quad-core processor?

A

A quad-core processor is a single CPU package with four CPU cores.

31
Q

In which of the following devices is the PCMCIA commonly used?

A

Laptop computer

32
Q

Which of the following would you find internal to the CPU?

A

SRAM

33
Q

You have been tasked with configuring two drives for maximum performance. Which of the following RAID types should you select?

A

RAID 0

34
Q

You just rebooted a PC and it displays a black screen with a white blinking underscore on the top left. What is the most likely problem?

A

Incorrect boot order

35
Q

Which of the following disks allows you to save and erase data on it multiple times?

A

CD-RW

36
Q

What is the transfer rate of DDR3-1600?

A

12,800 MB/s

37
Q

How much data can a SATA revision 3.0 drive transfer per second?

A

6.0 Gb/s

38
Q

You need to replace the CMOS battery in a laptop. Which of the following is a common location for the battery?

A

Under the keyboard

39
Q

Mark has a laptop that has a PATA controller. He wants to add a SATA hard drive for storage. Which of the following actions will he take to accomplish the task?

A

Use an external USB enclosure.

40
Q

Which of the following computer components are located on the northbridge? (Select the two best answers.)

A

CPU + RAM

41
Q

Which device should be used to protect against power outages?

A

UPS

42
Q

Which of the following types of storage devices cannot be used in RAID?

A

Dual-layer DVD

Blu-ray disk

43
Q

Which of the following disperses heat but requires no moving parts?

A

Heat sink

44
Q

You just installed new, compatible RAM into a motherboard, but when you boot the computer, it does not recognize the memory. What should you do?

A

Flash the BIOS

45
Q

A customer’s liquid-cooled system is intermittently overheating. What are the possible reasons for this? (Select the two best answers.

A

Air is trapped in the lines.

Water pump is becoming faulty.

46
Q

Which of the following is not a consideration when upgrading power supplies?

A

You might find that your case has a non-removable power supply.

47
Q

Which of the following are serial technologies?

A

CPIe

USB

IEEE1394

48
Q

Which of the following is not an expansion slot?

A

DDR

49
Q

What is the maximum capacity of a standard size, dual-layer Blu-ray disc?

A

50 GB

50
Q

Which of the following is not a consideration when installing an internal storage device?

A

Due to the high revolutions at which modern hard drives spin, you must secure an external power source because the internal power supplies do not have the capacity.

51
Q

What does Hyper-Threading do?

A

It enables two simultaneous threads to be processed by one CPU core.

52
Q

In comparison to traditional hard disk drives (HDDs), which of the following are not available in a solid-state drive (SSD)?

A

a. Movable read/write heads

b. Spinning disk

53
Q

Which of the following are possible reasons for motherboard failure? (Select best 2 answers.)

A

a. Power surges

b. Manufacturer defects

54
Q

How much data can a single layer of a standard DVD hold?

A

4.7 GB

55
Q

Which of the following does a PCIe x16 slot connect to?

A

a. Northbridge

b. Processor

56
Q

If a CPU is overheating, which of the following might be the cause?

A

The heat sink is clogged with dust.

57
Q

Which optical disc format supports data capacity of 25GB?

A

Single-sided, single-layer Blu-ray disc

58
Q

You have installed the CPU and heat sink/fan assembly. What should you do next?

A

Plug in the fan

59
Q

Which device tests multiple wires of a power supply at the same time?

A

Power supply tester

60
Q

How many pins are on a DDR3 memory module?

A

240

61
Q

Which of the following motherboard designs is most commonly used?

A

ATX

62
Q

You’re responsible for technical support at a High School. You’re concerned about students with some technical knowledge reconfiguring machines, either maliciously or not. You have already made sure Windows is secure and the students’ login has the minimum necessary privileges. What else should you do to prevent students from re-configuring the school lab computers?

A

Put a password on BIOS

63
Q

Which of the following are the advantages of solid-state drives?

A

b. Faster startup timeThis answer is correct.
c. Faster transfer speedsThis answer is correct.
d. Lower power consumption

64
Q

Which of the following uses a shorter wavelength and allows for almost six times more data storage than on a DVD?

A

Blu-ray Disc

65
Q

Which chip designates where data will be stored in RAM?

A

Northbridge

66
Q

Which of the following is part of Step 5 in the six-step troubleshooting process?

A

Implement preventative measures.

67
Q

Which of the following memory technologies enables protection against random inconsistencies when storing data?

A

ECC

68
Q

Which of the following sockets work with a Core i7 processor?

A

1366

69
Q

What is the physical component where data is stored in a HDD?

A

Platter

70
Q

What does BIOS stand for?

A

Basic Input/Output System

CompTIA+901 (17 decks)

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