computer networks set 3 Detailed Explanation And More Example

Question : 1

The sharing of a medium and its path by 2 or more devices is called _.

a) Multiplexing

b) Encoxing

c) Line discipline

d) Modulation

e) None of these

Question : 2

Which of the following communications modes support two-way traffic but in only one direction of a time?

a) simplex

b) half-duplex

c) three-quarters duplex

d) All of the above

e) None of these

Question : 3

Which of the following statement is incorrect?

a) Batch processing is the preferred processing mode for telecommunication operation.

b) Half duplex line is a communication line in which data can move in two directions, but not at the same time.

c) Teleprocessing combines telecommunications and DP techniques in online activities

d) The difference between synchronous and asynchronous trans mission is the clocking derived from the data in synchronous transmission.

Question : 4

Which of the following signal is not standard RS 232-C signal?

a) CIS

b) RTS

c) VDR

d) DSR

Question : 5

Which is built directly on the hardware?

a) Computer Environment

b) Application Software

c) Data base System

d) Opera ting System

e) none of the above

Question : 6

Terminals are required for

a) real-time, batch processing & time-sharing

b) real time, timesharing & distributed message processing

c) real-time, time sharing & message switching

d) real time, distributed processing & manager inquiry

e) none of the above