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MCQs

Total Questions : 885 | Page 49 of 89 pages
Question 481. Error detecting code is
  1.    None of these
  2.    the ratio of the data units in error to the total number of data units
  3.    an error-detecting code based on a summation operation performed on the bits to be checked
  4.    a check bit appended to an array of binary digits to make the sum of all the binary digits.
  5.    a code in which each expression conforms to specify rules of construction, so that if certain errors occur in an expression, the resulting expression will not conform to the rules of construction and
 Discuss Question
Answer: Option E. -> a code in which each expression conforms to specify rules of construction, so that if certain errors occur in an expression, the resulting expression will not conform to the rules of construction and
Question 482. A modulator converts a _____ signal to a(n) _____ signal.
  1.    digital; analog
  2.    FSK; PSK
  3.    None of these
  4.    PSK; FSK
  5.    analog; digital
 Discuss Question
Answer: Option A. -> digital; analog
Question 483. The birthplace of the World Wide Web is considered to be
  1.    the Department of Defense
  2.    None of these
  3.    CERN
  4.    Netscape
  5.    ARPA
 Discuss Question
Answer: Option C. -> CERN
Question 484. You have purchased a MAU (Multistation Access Unit) from your computer supplier and now must decide what type of network card you should install in the workstations. Which of the following would be the most appropriate?
  1.    Fast SCSI Wide
  2.    None of these
  3.    Ethernet
  4.    Token-Ring
  5.    ArcServe
 Discuss Question
Answer: Option D. -> Token-Ring
Question 485. The systematic access of small computers in a distributed data processing system is referred to as:
  1.    multiplexing
  2.    polling
  3.    conversational mode
  4.    None of these
  5.    dialed service
 Discuss Question
Answer: Option B. -> polling
Question 486. What is the loopback address?
  1.    None of these
  2.    127.0.0.1
  3.    255.0.0.0
  4.    255.255.255.255.0
  5.    255.255.0.0
 Discuss Question
Answer: Option B. -> 127.0.0.1
Question 487. The process of converting analog signals into digital signals so they can be processed by a receiving computer is referred to as:
  1.    modulation
  2.    demodulation
  3.    None of these
  4.    synchronizing
  5.    synchronizing
 Discuss Question
Answer: Option B. -> demodulation
Question 488. Who originally designed TCP/IP?
  1.    The Department of Defense
  2.    Xerox
  3.    Novell
  4.    IBM
  5.    None of these
 Discuss Question
Answer: Option A. -> The Department of Defense
Question 489. An ROP would be attached to a
  1.    full duplex channel
  2.    None of these
  3.    duplex channel
  4.    simplex channel
  5.    half duplex channel
 Discuss Question
Answer: Option D. -> simplex channel
Question 490. The most flexibility in how devices are wired together is provided by
  1.    T-switched networks
  2.    None of these
  3.    ring networks
  4.    star networks
  5.    bus networks
 Discuss Question
Answer: Option E. -> bus networks

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