Computer Hardware Questions

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271.

After displaying the directory of a floppy disk, a different floppy is inserted into the drive. The contents of the original floppy continue to display regardless of the director requests on the other floppies placed in the drive. You remove the drive in question and install it into your test system, and it does not exhibit the problem. You should next replace the:

A

System's floppy drive device driver

B

Original IDE controller

C

Floppy drive ribbon cable

D

System's power supply

E

None of the above

Correct Answer: C

None.

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272.

What is the best ground for a conductive work bench?

A

AC outlet

B

Ground to bench

C

To the motherboard

D

To the PC's Chassis

E

None of the above

Correct Answer: A

None.

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273.

When you are testing a fuse, you should set the Volt-OHM meter to what scale?

A

AC

B

DC

C

AMPS

D

OHMS

E

None of the above

Correct Answer: D

None.

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274.

During boot-up, the memory test:

A

Is a superfluous step that should be ignored

B

Checks and verifies that contiguous memory is installed

C

Is an operational error

D

Displays what memory is installed, but nothing else

E

None of the above

Correct Answer: A

None.

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275.

A customer has just installed a new cd-rw. the system was working fine before the installation, but now the cdrom does not work, what should you suggest that the customer do?

A

flash or upgrade the BIOS

B

check the CONFIG.SYS

C

add cdrw in the device manager

D

check the jumper setting on the cd-rw

E

None of the above

Correct Answer: D

None.

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276.

Which is the most difficult environmentally to dispose of?

A

floppy drives

B

hard drives

C

power supplies

D

CRTs

E

system boards

Correct Answer: D

None.

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277.

Resistance is measured:

A

in parallel

B

in series

C

after breaking the circuit

D

after checking voltage

E

after checking current

Correct Answer: C

None.

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278.

Which is LEAST likely to interfere with upgrading to a newer DOS Version?

A

ROM BIOS

B

Video controller

C

Compressed drives

D

Existing backup files

E

None of the above

Correct Answer: B

None.

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279.

How may standard levels of interrupts are provided on the 8-bit ISA bus (XT-class computer)?

A

4

B

8

C

12

D

16

E

None of the above

Correct Answer: B

None.

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280.

"Parity" errors usually indicate bad memory

A

True

B

FALSE

C

LPT2

D

The modem

E

None of the above

Correct Answer: A

None.

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