computer networks Practice Questions Answers Test with Solutions & More Shortcuts

Question : 21

Which of the following might be used by a company to satisfy following communications needs?

a) front end processor

b) all of the above

c) controller

d) concentrator

e) multiplexer

Question : 22

An example of digital, rather than analog, communication is

a) DOS

b) DDD

c) WATS

d) DOT

e) none of the above

Question : 23

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

Question : 24

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 : 25

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

a) CIS

b) RTS

c) VDR

d) DSR