Data Communications and Networks - MCQs

Q Which layer of OSI model performs Encryption/Decryption?

  • A Physical
  • B Application
  • C Presentation
  • D Session
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Computer Science Data Communications and Networks Uploaded By: Safdar Ali

Q Transmission mode used for data communication along telephone lines is:

  • A Serial
  • B Parallel
  • C Synchronous
  • D Asynchronous
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Computer Science Data Communications and Networks Uploaded By: Safdar Ali

Q In the OSI model, when data packet moves from upper layers to lower layers, headers get __________.

  • A added
  • B removed
  • C none of the above
  • D rearranged
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Computer Science Data Communications and Networks Uploaded By: Safdar Ali

Q A __________ contains information which is attached to the front of data.

  • A trailer
  • B folder
  • C header
  • D none of these
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Computer Science Data Communications and Networks Uploaded By: Safdar Ali

Q The technical name for WiFi is __________.

  • A 802.11
  • B 802.5
  • C 802.4
  • D 802.10
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Computer Science Data Communications and Networks Uploaded By: Safdar Ali

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