computer networks set 1 Detailed Explanation And More Example

Question : 1

The synchronous modems are more costly than the asynchronous modems because

a) they produce large volume of data

b) they contain clock recovery circuits

c) they transmit the data with stop and start bits.

d) they operate with a larger bandwidth

e) None of these

Question : 2

Officer LANs that are spread geographically apart on a large scale can be connected using a corporate

a) CAN

b) LAN

c) DAN

d) WAN

e) TAN

Question : 3

The loss in signal power as light travels down the fiber is called

a) interruption

b) progragation

c) scattering

d) attenuation

e) none of the above

Question : 4

Smaller and less expensive PC-based servers are replacing ____ in many businesses.

a) supercomputers

b) mainframes

c) laptops

d) clients

e) None of these

Question : 5

Codec refers to

a) Coder-decoder

b) Co-declaration

c) Command declaration

d) Command decoding

e) None of these

Question : 6

A protocol is a set of rules governing a time sequence of events that must take place

a) between modems

b) between an interface

c) between peers

d) across an interface

e) none of the above