Which is NOT typically a Field Replaceable Unit?
Answer: C
Correct answer: System chassis
A field replaceable unit is a part that can be swapped out to effect a repair - a board, a supply, a drive. The chassis is the frame everything else is fitted into and is not replaced in service.
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What is the recommended way to fix the registry description for the printer driver
Answer: D
Correct answer: Remove the printer driver and re-install it
Removing the driver through the operating system's own interface clears its registry entries in the proper order and the reinstallation writes them afresh. Editing the registry by hand risks leaving inconsistent entries behind.
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After you service a laser printer, you notice dirty print. Which of the following would correct the problem.
Answer: C
Correct answer: Run several blank pages
Loose toner left inside after servicing is carried out onto the first pages printed. Running a few blank sheets clears it, and costs nothing to try before anything is dismantled again.
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Modems use transmission.
Answer: B
Correct answer: asynchronous
A modem sends each character framed by start and stop bits, with no clock shared between the two ends - that is asynchronous transmission. Synchronous transmission requires a common clock.
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Which common bus specification provides the fastest data transfer rate?
Answer: C
Correct answer: PCI
PCI runs at 33 MHz and 32 bits, giving about 133 MB/s, against the VL bus's dependence on the processor bus and ISA's 8 MHz. It is also processor-independent, which is why it outlasted VL.
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All Operating Systems get their total memory initialized from?
Answer: B
Correct answer: BIOS
The BIOS counts and tests the memory during the power-on self test and records the total, which the operating system then reads rather than working it out again.
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During boot-up, the memory test:
Answer: B
Correct answer: Checks and verifies that contiguous memory is installed
The power-on self test writes and reads back each memory location, confirming that the memory is present, working and addressable in one unbroken range. It is a test, not a display.
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You have a PC with no video. Which of the following is LEAST likely to be causing the problem?
Answer: C
Correct answer: crashed hard drive
No video at all means the machine has failed before it could display anything, which points to memory, the processor or the video card. A dead hard drive would still give a display - with an error message on it.
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When your hard drive crashes because of any of the causes listed above, or from being dropped, it is known as head-to-disk interference, or HDI.
Answer: A
Correct answer: True
A head crash is contact between the read-write head and the platter surface, whatever the cause, and it is called head-to-disk interference. The heads normally fly a fraction of a micron above the surface, which is why a knock while running is enough.
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What specification covers PC hard cards?
Answer: C
Correct answer: PCMCIA
PCMCIA defines the credit-card sized expansion cards used in laptops, later renamed PC Card. SCSI and ISA are buses of a different kind and MFM an old disk encoding.
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