Multiple Choice Questions for Data Communication and Networking

Selective Data Communication and Networking Questions and Answers:

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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

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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.

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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

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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.

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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

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Q.7 Coaxial cable has conductors with….

(A) a common axis

(B) equal resistance

(C) the same diameter

(D) none of these

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Q.8 The area of coverage of a satellite radio beam is called its….

(A) beam width

(B) circular polarization

(C) footprint

(D) identity

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Q.9 The amount of uncertainty in a system of the symbol is called.

(A) bandwidth

(B) entropy

(C) loss

(D) quantum

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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

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