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Computer MCQs for Competitive Exams

A self replicating program, similar to a virus which was taken from a 1970s science fiction novel by John Bruner entitled the Shockwave Rider is                      ?

Computer MCQs for Competitive Exams

The device used to carry digital data on analogue lines is called as                    ?

A. Modem
B. Multiplexer
C. Modulator
D. Demodulator
$s), while traditional infrastructure (like telephone lines) transmits continuous analog wave audio signals.

  • Step 2 (Signal Transition): The modem resolves this discrepancy by converting outgoing digital data into analog waves (modulation) and translating incoming analog signals back into binary code (demodulation).
  • Incorrect Options:
    • Multiplexer is incorrect because a multiplexer merges multiple independent data streams into a single high-speed transmission channel, rather than executing analog-to-digital transformations.
    • Modulator is incorrect on its own because it only covers half of the bidirectional communication cycle, representing the digital-to-analog outbound phase.
    • Demodulator is incorrect on its own because it only accounts for the incoming analog-to-digital processing phase.
  • “]$s), while traditional infrastructure (like telephone lines) transmits continuous analog wave audio signals.

  • Step 2 (Signal Transition): The modem resolves this discrepancy by converting outgoing digital data into analog waves (modulation) and translating incoming analog signals back into binary code (demodulation).
  • Incorrect Options:
    • Multiplexer is incorrect because a multiplexer merges multiple independent data streams into a single high-speed transmission channel, rather than executing analog-to-digital transformations.
    • Modulator is incorrect on its own because it only covers half of the bidirectional communication cycle, representing the digital-to-analog outbound phase.
    • Demodulator is incorrect on its own because it only accounts for the incoming analog-to-digital processing phase.
  • “]

    Computer MCQs for Competitive Exams

    After moving a clip art image to a particular location on the slide, you can immediately reverse the action using the                        ?

    Computer MCQs for Competitive Exams
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