This Unit provides a large part of
the technical knowledge for the candidate. The questions are
designed to test the knowledge by asking theoretical questions
and including practical examples.
1) Which of these is not a binary
number:
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1001 |
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10 |
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1000 0002 |
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10001 1001 |
2) Which of these is a binary code
used to represent characters in a computer:
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OSI |
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ASCII |
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CPU |
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ALU |
3) Eight bits form a:
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Bit |
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Byte |
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Word |
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Kilobyte |
4) A single byte can hold a single
character in binary code
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true |
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false |
5) Which of the ports below is the
serial port on a typical PC?
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LPT 1 |
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COM1 |
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USB |
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SCSI |
6) Each make of processor has its own
instruction set
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true |
|
|
false |
7) ZIF sockets describe:
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Connectors that require little or no insertion pressure |
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Sockets that are inserted using a lever acting as a location device |
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Connectors that are inserted using a special tool to provide the high torque |
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A robust connector noted for the high level of force required for insertion |
8) RISC chips work fast by repeating
simple instructions very quickly rather than single more
complicated instructions
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true |
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false |
9)
Main memory must be much faster
than Cache memory
|
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true |
|
|
false |
10) Dynamic RAM (DRAM) requires
refresh:
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to initialize the memory when first used |
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to ensure that the data is maintained when the computer is switched off |
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to clear the memory before using a new application |
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to maintain the charge while holding information |