computer networks Practice Questions Answers Test with Solutions & More Shortcuts

Question : 16

A collection of computers and devices connected together via communication devices and transmission media is called a __________.

a) workgroup

b) server

c) mainframe

d) network

e) computer lab

Question : 17

X.21 protocol consists of

a) Only physical level

b) Frame and packet levels

c) Physical, frame and pack-et levels

d) Physical and frame levels

e) None of these

Question : 18

Servers are computers that provide resources to the other computers connected to a _

a) Mainframe

b) Network

c) Super computer

d) Client

e) None of these

Question : 19

A band is always equivalent to

a) a byte

b) a bit

c) 100 bits

d) none of the above .

e) all of above

Question : 20

The slowest transmission speeds are those of

a) twisted-pair wire

b) coaxial cable

c) fiber-optic cable

d) microwaves