computer networks Practice Questions Answers Test with Solutions & More Shortcuts

Question : 16

Which of the following performs modulation and demodulation?

a) modem

b) satellite

c) coaxial cable

d) fiber optics

e) none of the above

Question : 17

A modem is connected to

a) a telephone line

b) a keyboard

c) a printer

d) a monitor

e) a scanner

Question : 18

When a computer is first turned on or restarted, a special type of absolute. Loader called _ is executed

a) Compile and Go loader

b) Bootstrap loader

c) Boot loader

d) Relating loader

e) none of the above

Question : 19

An example of an analog communication method is

a) laser beam

b) microwave

c) voice grade telephone line

d) none of the above

e) all of the above

Question : 20

__ is used in operating system to separate mechanism from policy

a) Two level implementation

b) Single level implementation

c) Multi level implementation

d) All of the above

e) none of the above