computer networks Practice Questions Answers Test with Solutions & More Shortcuts

Question : 16

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

a) half duplex

b) simplex

c) three-quarters duplex

d) all of the above

e) none of the above

Question : 17

Communication circuits that transmit data in both directions but not at the same time are operating in

a) a simplex mode

b) all the options

c) a full duplex mode

d) a half duplex mode

e) an asynchronous mode

Question : 18

What is the minimum number of wires needed to send data over a serial communication link layer?

a) 2

b) 1

c) 4

d) 6

e) none of above

Question : 19

Computer connected to a LAN {Local Area Network) can

a) share information and/or share peripheral equipment

b) go on line

c) run faster

d) E-mail

e) None of these

Question : 20

Which of the following is considered a broad band communication channel?

a) coaxial cable

b) fiber optics cable

c) all of above

d) microwave circuits