Multiple Choice Questions for Data Communication and Networking

Selective Data Communication and Networking Questions and Answers:

Q.81 The forms of information that may be sent electronically are….

(A) voice

(B) data

(C) video

(D) all of these

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Q.82 The basic component necessary for communication is a ……

(A) computer terminal

(B) modem

(C) communications software

(D) all of these

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Q.83 The physical path that is used for sending information is called.

(A) channel

(B) line

(C) link

(D) all of these

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Q.84 A half-duplex communication channel permits information to travel…

(A) both ways at once

(B) both ways, but not at once

(C) one direction only

(D) at timed intervals

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Q.85 Carrier is….

(A) one or more conductors that serve as a common connection for a related group a device.

(B) a continuous frequency capable of being modulated or impressed with a second signal

(C) the condition when two or more sections attempt to use the same channel at the same time.

(D) a collection of interconnected functional units that provides a data communications service among stations attached to the network.

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Q.86 Which of the following methods provides dedicated communications channel between two stations?

(A) Switch network

(B) Circuit switching

(C) Packet switching

(D) None of these

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Q.87 Which of the following techniques is used for allocating capacity on a satellite channel using fixed assignment FDM?

(A) Amplitude modulation

(B) Frequency-division multiple access

(C) Frequency modulation

(D) Frequency shift keying

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Q.88 An error detecting code is the remainder resulting from dividing the bits to be checked by a predetermined binary number, is called.

(A) cyclic redundancy check

(B) checksum

(C) error detecting code

(D) error rate

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Q.89 Internet address can be used to refer to networks as well as individual hosts. By convention, the network address has hosted with all bits.

(A) 0

(B) 1

(C) combinations of 0 and 1

(D) none of these

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Q.90 The 32-bit internet address 10000000 000010100 0000010 00011110 will be written in dotted decimal notation as…….

(A) 148.20.2.30

(B) 164.100.9.61

(C) 210.20.2.64

(D) 128.10.2.30

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