Practice Computer networks - computer mcq Online Quiz (set-1) For All Competitive Exams

Q-1)   What is the minimum number of wires needed to send data over a serial communication link layer?

(a)

(b)

(c)

(d)

(e)


Q-2)   Usually, in MSDOS, the primary hard disk drives has the drive letter __

(a)

(b)

(c)

(d)

(e)


Q-3)   Number of bits per symbol used in Baudot code is .

(a)

(b)

(c)

(d)

(e)


Q-4)   Which of the following refers to a small, single site network?

(a)

(b)

(c)

(d)

(e)


Q-5)   While transmitting-odd-parity coded symbols, the number of zeros in each symbol is

(a)

(b)

(c)

(d)

(e)


Q-6)   DSL is an example of a(n) _____ connection.

(a)

(b)

(c)

(d)

(e)


Q-7)   __________ is the most important/powerful computer in a typical network.

(a)

(b)

(c)

(d)

(e)


Q-8)   A MODEM is connected in between a telephone line and a __________.

(a)

(b)

(c)

(d)


Q-9)   The most important or powerful computer in a typical network is

(a)

(b)

(c)

(d)

(e)


Q-10)   To connect networks of similar protocols ______ are used

(a)

(b)

(c)

(d)

(e)


Q-11)   A device that connects to a network without the use pf cables is said to be—

(a)

(b)

(c)

(d)

(e)


Q-12)   In a synchronous modem, the digital-to-analog converter transmits signal to the

(a)

(b)

(c)

(d)

(e)


Q-13)   The __ is a device that connects n inputstom outputs,

(a)

(b)

(c)

(d)

(e)


Q-14)   A distributed network configuration in which all data/information pass through a central computer is

(a)

(b)

(c)

(d)

(e)


Q-15)   Avalanche photodiode receivers can detect bits of transmitted data by receiving

(a)

(b)

(c)

(d)

(e)


Q-16)   A permanent virtual circuit involves

(a)

(b)

(c)

(d)

(e)


Q-17)   Which of the following types of channels moves data relatively slowly?

(a)

(b)

(c)

(d)

(e)


Q-18)   A modem is connected to

(a)

(b)

(c)

(d)

(e)


Q-19)   Which multiplexing technique transmits ariatog signals ?

(a)

(b)

(c)

(d)

(e)


Q-20)   Which is the first program run on a computer when the computer boots up?

(a)

(b)

(c)

(d)

(e)