Data Communication & Networking MCQs Set-8

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
. Which of the following divides the high speed signal into frequency bands?
  • T switch
  • Time division multiplexer
  • Frequency Division Multiplexer
  • Code Division Multiplexer
2
. Sending a file from users personal computers, primary memory or disk to another computer is called
  • uploading
  • hang on.
  • logging on
  • downloading
3
. In OSI network architecture the dialogue control and token management are responsibilities of ________
  • session layer
  • network layer
  • transport layer
  • data link layer
4
. Which one of the following is not a function of network layer?
  • routing
  • inter-networking
  • congestion control
  • none of the above
5
. The interactive transmission of data within a time sharing system may be best suited to __________
  • half duplex
  • simplex lines
  • biflex lines
  • full duplex lines
6
. How many OSI layers are covered in the X.25 standard?
  • 3
  • 2
  • 7
  • 6
7
. The third layer of OSI model is _____
  • physical layer.
  • data link layer
  • network layer
  • transport layer.
8
. The X.25 standard specifies a _________
  •  technique for start stop data
  • technique for dial access
  • DTE/DCE interface
  • data bit rate
9
. Which of the following signals is not standard RS-232-C signal?
  • VDR
  • CTS
  • RTS
  • DSR
10
. What is the minimum number of wires needed to send data over a serial communication link layer?
  • 1
  • 2
  • 4
  • 6

 
 
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