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MCQs

Total Questions : 885 | Page 11 of 89 pages
Question 101. X.21 protocol consists of
  1.    Only physical level
  2.    Frame and packet levels
  3.    Physical, frame and pack-et levels
  4.    Physical and frame levels
  5.    None of these
 Discuss Question
Answer: Option A. -> Only physical level
Question 102. Servers are computers that provide resources to the other computers connected to a _
  1.    Mainframe
  2.    Network
  3.    Super computer
  4.    Client
  5.    None of these
 Discuss Question
Answer: Option B. -> Network
Question 103. A band is always equivalent to
  1.    a byte
  2.    a bit
  3.    100 bits
  4.    none of the above .
  5.    all of above
 Discuss Question
Answer: Option D. -> none of the above .
Question 104. The slowest transmission speeds are those of
  1.    twisted-pair wire
  2.    coaxial cable
  3.    fiber-optic cable
  4.    microwaves
 Discuss Question
Answer: Option A. -> twisted-pair wire
Question 105. Which of the following might be used by a company to satisfy following communications needs?
  1.    front end processor
  2.    all of the above
  3.    controller
  4.    concentrator
  5.    multiplexer
 Discuss Question
Answer: Option B. -> all of the above
Question 106. An example of digital, rather than analog, communication is
  1.    DOS
  2.    DDD
  3.    WATS
  4.    DOT
  5.    none of the above
 Discuss Question
Answer: Option A. -> DOS
Question 107. Terminals are required for
  1.    real-time, batch processing & time-sharing
  2.    real time, timesharing & distributed message processing
  3.    real-time, time sharing & message switching
  4.    real time, distributed processing & manager inquiry
  5.    none of the above
 Discuss Question
Answer: Option C. -> real-time, time sharing & message switching
Question 108. Which is built directly on the hardware?
  1.    Computer Environment
  2.    Application Software
  3.    Data base System
  4.    Opera ting System
  5.    none of the above
 Discuss Question
Answer: Option D. -> Opera ting System
Question 109. Which of the following signal is not standard RS 232-C signal?
  1.    CIS
  2.    RTS
  3.    VDR
  4.    DSR
 Discuss Question
Answer: Option C. -> VDR
Question 110. How much power (roughly) a light emitting diode can couple into an optical fiber?
  1.    100 picowatts
  2.    440 microwatts
  3.    100 microwatts
  4.    10 milliwatts
 Discuss Question
Answer: Option C. -> 100 microwatts

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