To install a second IDE drive into a computer, you must:
Answer: A
Correct answer: Set the master-slave jumper to slave on the second drive
Two drives on one IDE cable must be distinguished, and that is done by the jumper on each drive. The BIOS discovers them once the jumpers are right; there is nothing to configure in software first.
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Why does a successfully mapped network drive disappear every time you boot the computer?
Answer: C
Correct answer: The map statement is not in the autoexec.bat file
A mapping made at the command line lasts only for that session. To survive a restart it must be re-established at boot - from AUTOEXEC.BAT, or by ticking reconnect at logon.
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What do you need to check serial and parallel port?
Answer: C
Correct answer: Loopback plug
A loopback plug joins a port's output pins to its input pins, so software can send data and check that the same data returns. That tests the port itself with nothing attached to it.
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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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To test for AC ripple on a PC power supply, you would set the volt/ohm meter for:
Answer: B
Correct answer: AC voltage
Ripple is the alternating component left on a direct current supply, so it is measured on the AC voltage range; the DC range would report only the average and hide it.
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You get a CMOS checksum error during bootup. What is most likely the cause?
Answer: C
Correct answer: CMOS battery is nearing end of life
The checksum is stored with the CMOS settings and fails when they are corrupted, which happens as the battery loses the charge that maintains them. A new battery and re-entered settings cure it.
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On the 16-bit ISA bus, IRQ2 is elevated to which higher level interrupt?
Answer: A
Correct answer: 9
On the 16-bit ISA bus the second interrupt controller is cascaded through IRQ2, so a device requesting IRQ2 is actually serviced as IRQ9. The two are the same line seen from either side.
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When measuring AC (Alternating Current) with a multimeter, it is important to maintain the proper polarity.
Answer: B
Correct answer: False
Alternating current reverses direction many times a second, so it has no fixed polarity to observe. Polarity matters when measuring direct current, where reversing the leads reverses the sign of the reading.
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After trying to unload a TSR, you get an error message saying that other TSRs were loaded after the one you tried to remove. Which of the following commands could you use to see the current load order?
Answer: D
Correct answer: MEM /C
MEM /C classifies memory by program, listing what is loaded and how much each occupies - which shows the order in which the resident programs went in. MEM /P pages the output rather than classifying it.
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What is a common language that computers use to talk with one another on a network
Answer: C
Correct answer: protocol
A protocol is the agreed set of rules by which two machines exchange data, which is what makes it the common language of a network. The adapter is the hardware and the client the software using it.
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