Data Communication and Networking MCQs

1.

Which of the following statements is incorrect?

   A.) teleprocessing combing telecommunication and DP techniques in online activities.
   B.) Multiplexers are designed to accept data from several I/O devices and transmit a unified stream of data on one communication line.
   C.) a half-duplex line is a communication line in which data can move in two directions, but not the same time.
   D.) batch processing is the preferred processing mode for telecommunication operations.

Answer: Option 'D'

batch processing is the preferred processing mode for telecommunication operations.

2.

The economics of computing dictates _______.

   A.) sharing peripherals and data
   B.) giving processers to people who need processing time and instantaneous response
   C.) both (A) and (B)
   D.) all of these

Answer: Option 'C'

​both (A) and (B)

3.

In OSI network architecture, the dialogue control, and token management are responsibilities of _______.

   A.) data link layer
   B.) network layer
   C.) transport layer
   D.) session layer

Answer: Option 'D'

session layer

4.

In the current frequency assignments, how many frequency bands are there for the uplink frequencies?

   A.) 16
   B.) 8
   C.) 4
   D.) 2

Answer: Option 'C'

4

5.

A protocol is a rule governing a time sequence of events that must take place.

   A.) between peers
   B.) across an interface
   C.) between non-peers
   D.) none of these

Answer: Option 'A'

between peers

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