A+ Certification : 2.0 Working With PC Components (Essentials)
0Test your knowledge with working with PC Components.
- 1.
Which of the following steps is not necessary when replacing a floppy drive?
- A.
Turn off the PC.
- B.
Disconnect the power supply from the drive.
- C.
Disconnect the ribbon cable from the drive.
- D.
Disconnect the audio cable from the drive.
Correct Answer
D. Disconnect the audio cable from the drive.Explanation
There is no audio cable associated with a floppy drive; that's only for CD drives. All the other listed actions are necessary when replacing a floppy drive.Rate this question:
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- 2.
When attaching a ribbon cable to a drive, if there is no marking for pin 1, which way should you orient the red stripe?
- A.
Closest to the power supply connector
- B.
Farthest away from the power supply connector.
- C.
Facing the top of the drive
- D.
Facing the bottom of the drive
Correct Answer
A. Closest to the power supply connectorExplanation
Closest to the power supply connector is a general rule for stripe orientation. Because the cable attaches horizontally to the drive, there is no "facing the top" or "facing the bottom" orientation.Rate this question:
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- 3.
To fix a bad power supply in a desktop PC, you should __________.
- A.
Remove and replace the entire power supply box.
- B.
Disassemble the power supply and replace the coils.
- C.
Disassemble the power supply and replace the capacitors.
- D.
Disassemble the power supply and replace the resistors.
Correct Answer
A. Remove and replace the entire power supply box.Explanation
You should never attempt to disassemble a power supply, because of the risk of electrocution and the relatively low cost of a new power supply.Rate this question:
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- 4.
How many bits of data does a high-speed serial cable carry simultaneously in a single direction?
- A.
1
- B.
8
- C.
32
- D.
Depends on the cable.
Correct Answer
A. 1Explanation
By definition, a serial cable carries only one bit of data at a time.Rate this question:
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- 5.
Which of the following could not be connected to an IDE interface on a typical motherboard?
- A.
ATA-2
- B.
EIDE
- C.
ATAPI
- D.
All of these could be connected.
Correct Answer
D. All of these could be connected.Explanation
All of these types of IDE. ATA-2 and EIDE are the same thing. ATAPI is a non-hard-disk type of the IDE device.Rate this question:
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- 6.
What do UltraDMA/66 and higher require?
- A.
Cable Select configuration
- B.
An 80-wire cable
- C.
Operating system support
- D.
All the above
Correct Answer
B. An 80-wire cableExplanation
UltraDMA/66 requires a special ribbon cable with extra wires to cut down on crosstalk.Rate this question:
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- 7.
On the primary IDE channel, if a single hard disk is attached, its jumper should be set to _________.
- A.
Slave
- B.
Single if available; otherwise Master
- C.
Master
- D.
Boot
Correct Answer
B. Single if available; otherwise MasterExplanation
If there is a Single setting, it should be used. Otherwise use Master. Slave is never appropriate for a single drive. There is no such jumper setting as Boot.Rate this question:
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- 8.
What type of SCSI termination uses voltage regulators inside the terminator?
- A.
Active
- B.
Passive
- C.
High-Byte
- D.
All of the above
Correct Answer
A. ActiveExplanation
Active termination uses voltage regulators. Passive termination uses resistors.Rate this question:
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- 9.
Which AT command resets the modem?
- A.
ATH0
- B.
ATM0
- C.
ATZ
- D.
ATDT
Correct Answer
C. ATZExplanation
ATZ is a reset command. ATH0 hangs up. ATM0 turns off the speaker. ATDT dials whatever number follows it.Rate this question:
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- 10.
While inspecting a motherboard, you notice a discolored area. What is usually a cause of this?
- A.
Spilled liquid
- B.
Improper manufacture
- C.
Power surge
- D.
Underclocking
Correct Answer
C. Power surgeExplanation
Discolored areas on the board are often caused by overheating. This can be the result of power surges or overclocking.Rate this question:
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- 11.
What does the red stripe on a ribbon cable indicate?
- A.
Pin 16
- B.
Pin 1
- C.
The manufacturer's trademark
- D.
Parity
Correct Answer
B. Pin 1Explanation
The red stripe on the cable indicated pin 1Rate this question:
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- 12.
Display devices can be connected to a PC using DB-15 connectors or _____________.
- A.
HDT
- B.
DVI
- C.
VBA
- D.
VBP
Correct Answer
B. DVIExplanation
Digital Visual Interface (DVI) connectors can be used to connect display devices to PC's.Rate this question:
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- 13.
What utility can be used with Windows XP to format drives?
- A.
Disk Design
- B.
Disk Plan
- C.
Disk Management
- D.
Disk Prep
Correct Answer
C. Disk ManagementExplanation
The Disk Management utility can be used in Windows XP to format drives.Rate this question:
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- 14.
What type of the female DB-style connector does SCSI-2 use? (Choose all that apply.)
- A.
25-pin
- B.
50-pin
- C.
68-pin
- D.
72-pin
Correct Answer(s)
A. 25-pin
B. 50-pin
C. 68-pinExplanation
SCSI-2 uses a 25-, 50-, or 68-pin female DB-style connector.Rate this question:
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- 15.
Internally, what type of wire ribbon cable does SCSI use?
- A.
25-pin
- B.
50-pin
- C.
68-pin
- D.
72-pin
Correct Answer
B. 50-pinExplanation
SCSI internal cabling uses a 50-wire ribbon cable with several keyed connectors.Rate this question:
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- 16.
When changing display devices or upgrading to a newer one, what is one of the most crucial components to have?
- A.
Manufacturer's resolution recommendations
- B.
Antistatic mat
- C.
Ribbon cable
- D.
Correct driver
Correct Answer
D. Correct driverExplanation
The correct driver is needed in order to assure the new display device works as it should.Rate this question:
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- 17.
Every computer has a diagnostic program built into its BIOS called the ____________.
- A.
CMOS
- B.
BIOS
- C.
POST
- D.
DNS
Correct Answer
C. POSTExplanation
Every computer has a diagnostic program built into its BIOS called the power-on self-test (POST).Rate this question:
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- 18.
What two devices are commonly used to cool components within a PC? (Choose two.)
- A.
Fans
- B.
Compressed air
- C.
Freon
- D.
Heat sinks
Correct Answer(s)
A. Fans
D. Heat sinksExplanation
Heat sinks and fans are commonly used to cool components within a PC.Rate this question:
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Current Version
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Jan 18, 2023Quiz Edited by
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Jan 23, 2009Quiz Created by
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