Data Communication and Networking – Transmission of Digital Data – Parallel / Serial / Synchronous / Asynchronous Transmission MCQs

This set of Data communication and Networking Multiple Choice Questions and Answers (MCQs) focuses on “Transmission of Digital Data – parallel, serial, synchronous, asynchronous Transmission”.
 

1
. In _______ transmission of data, a group of n bits are sent simultaneously.
  • parallel
  • synchronous
  • asynchronous
  • serial
2
. In _______ transmission, if n bits are being sent simultaneously, n communication channels are needed
  • parallel
  • synchronous
  • asynchronous
  • serial
3
. Serial transmission can be _______
  • parallel
  • synchronous
  • asynchronous
  • b or c
4
. _______ transmission features start bits, stop bits, and gaps between data units
  • Parallel
  • Synchronous
  • Asynchronous
  • Virtual
5
. Asynchronous transmission features _______
  • start bits
  • stop bits
  • gaps between data units
  • all of the above
6
. Data transmission between the keyboard and the computer is usually _______
  • parallel
  • synchronous
  • asynchronous
  • virtual
7
. Serial transmission without stop bits, start bits, or gaps is called _______ transmission
  • parallel
  • synchronous
  • asynchronous
  • virtual
8
. In parallel transmission, if we are sending 80 Kbps (on each line), we send _______ characters per second
  • 80,000
  • 10,000
  • 40,000
  • none of above
9
. In synchronous serial transmission, if we are sending 80 Kbps, we send _______ characters per second.
  • 80,000
  • 10,000
  • 40,000
  • none of above
10
. In asynchronous serial transmission, if we are sending 100 Kbps, we send _______ characters per second.
  • 80,000
  • 10,000
  • 40,000
  • none of above

 
 
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