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MCQ

Q.

Which standard govern parallel communications?

A

RS232

B

RS-232a

C

CAT 5

D

IEEE 1284

E

None of the above

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How many DMA channels are there in an AT class PC?

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A COM port is a _____ port.

A

parallel

B

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D

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E

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A

Is a superfluous step that should be ignored

B

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