computer networks set 3 Detailed Explanation And More Example

Question : 1

What is required when more than one person uses a central computer at the same time?

a) Light pen

b) Mouse

c) Terminal

d) Digitizer

e) None of these

Question : 2

A data terminal serves as an

a) Effector

b) sensor

c) neither a nor b

d) both a and b

e) none of the above

Question : 3

A(n) __________ is composed of several computers connected together to share resources and data.

a) Internet

b) network

c) backbone

d) hyperlink

e) protocol

Question : 4

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 : 5

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 : 6

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