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
Ans . D
Q.82 The basic component necessary for communication is a ……
(A) computer terminal
(B) modem
(C) communications software
(D) all of these
Ans . C
Q.83 The physical path that is used for sending information is called.
(A) channel
(B) line
(C) link
(D) all of these
Ans . D
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
Ans . B
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.
Ans . B
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
Ans . B
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
Ans . B
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
Ans . A
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
Ans . A
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
Ans . D
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