Multiple Choice Questions for Data Communication and Networking
Selective Data Communication and Networking Questions and Answers:
Q.1 What is the minimum number of wires needed to send data over it serial communication link layer?
(A) 1
(B) 2
(C) 3
(D) 4
Ans . B
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Q.2 Which data communication method is used to send data over a serial communication link?
(A) simplex
(B) half duplex
(C) full duplex
(D) all of these
Ans . C
Q.3 Which of the following statements is incorrect?
(A) teleprocessing combing telecommunication and DP techniques in online activities.
(B) Multiplexers are designed to accept data from several I/O devices and transmit a unified stream of data on one communication line.
(C) a half-duplex line is a communication line in which data can move in two directions, but not the same time.
(D) batch processing is the preferred processing mode for telecommunication operations.
Ans . D
Q.4 The interactive transmission of data within a time sharing system may be best suited to…..
(A) simplex line
(B) half duplex lines
(C) full duplex line
(D) bi-flex lines
Ans . B
Q.5 Teleprinters….
(A) are used for printing at remote locations, not for input.
(B) offer both high-speed operation and a variety of formatting controls.
(C) have a printer for output and a keyboard for input
(D) are same as teletypes.
Ans . C
Q.6 Which of the following is an example of a bounded medium?
(A) coaxial cable
(B) wave guide
(C) fiber optic cable
(D) all of these
Ans . D
Q.7 Coaxial cable has conductors with….
(A) a common axis
(B) equal resistance
(C) the same diameter
(D) none of these
Ans . A
Q.8 The area of coverage of a satellite radio beam is called its….
(A) beam width
(B) circular polarization
(C) footprint
(D) identity
Ans . C
Q.9 The amount of uncertainty in a system of the symbol is called.
(A) bandwidth
(B) entropy
(C) loss
(D) quantum
Ans . B
Q.10 Buffering is….
(A) the process of temporarily storing the data to allow for small variation in device speeds.
(B) a method to reduce cross-talks
(C) storage of data within the transmitting medium until the receiver is ready to receive
(D) a method to reduce the routing overhead
Ans . A
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Rajesh Bhatia
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