Data Communication & Networking MCQs Set-14

This Portion of Data Communication and Networking contains more frequently asked MCQs (Multiple Choice Questions and Answers) / Objective Type Questions and Answers in the various Competitive Examinations.
 

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1
. In ______ routing, the destination address is a network address in the routing tables.
  • next-hop
  • host-specific
  • network-specific.
  • default
2
. The ________ flag indicates the availability of a router.
  • up
  • host specific
  • gateway
  • added by redirection.
3
. For a direct delivery, the ________ flag is on.
  • Up
  • host specific
  • Gateway
  • added by redirection.
4
. The process of converting analog signals into digital signals so they can be processed by a receiving computer is referred to as __________
  • synchronizing
  • demodulation
  • modulation
  • default
5
. User datagram protocol is called connectionless because
  • all UDP packets are treated independently by transport layer
  • it sends data as a stream of related packets
  • both (a) and (b)
  • none of the above
6
. Which of the following does not allow multiple users or devices to share one communication line?
  • Doubleplexer
  • Concentrator
  • Multiplexer
  • Controller
7
. After coding a document into a digital signal, it can be sent by telephone, telex or satellite to the receiver where the signal is decoded and an exact copy of the original document is made. What is it called?
  • Telex
  • Electronic mail.
  • Facsimile
  • Word processor
8
. Videotex is a combination of _______
  • computer technology.
  • television
  • computers
  • all of the above
9
. Usually it takes 10 bits to represent one character. How many characters can be transmitted at a speed of 1200 bps?
  • 10
  • 12
  •  20
  • 1200
10
. Who invented the modem?
  • Wang Laboratories.
  •  AT & T.
  • Apple computers.
  • Satyam conferencing.

 
 
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