Data Communication Multiple Choice Questions and Answers

Questions

1 ________ is a collection of many separate networks.

A A WAN

B An internet

C A LAN

D None of the above

View Answer

Answer: An internet

2 _______ is the protocol suite for the current Internet.

A UNIX

B NCP

C TCP/IP

D ACM

View Answer

Answer: TCP/IP

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3 Devices may be arranged in a _____ topology.

A mesh

B ring

C bus

D all of the above

View Answer

Answer: all of the above

4 This was the first network.

A CSNET

B NSFNET

C ARPANET

D ANSNET

View Answer

Answer: ARPANET

5 _______ refers to two characteristics: when data should be sent and how fast it can be sent.

A Semantics

B Timing

C Syntax

D none of the above

View Answer

Answer: Timing

6 A _______ is a data communication system within a building, plant, or campus, or between nearby buildings.

A LAN

B MAN

C WAN

D none of the above

View Answer

Answer: LAN

7 Which agency developed standards for physical connection interfaces and electronic signaling specifications?

A ISO

B ITU-T

C ANSI

D EIA

View Answer

Answer: EIA

8 _______ are special-interest groups that quickly test, evaluate, and standardize new technologies.

A Standards organizations

B Regulatory agencies

C Forums

D All of the above

View Answer

Answer: Regulatory agencies

9 Data flow between two devices can occur in a _______ way.

A simplex

B half-duplex

C full-duplex

D all of the above

View Answer

Answer: all of the above

10 A television broadcast is an example of _______ transmission.

A half-duplex

B simplex

C full-duplex

D automatic

View Answer

Answer: simplex

11 Frequency of failure and network recovery time after a failure are measures of the _______of a network.

A Performance

B Security

C Reliability

D Feasibility

View Answer

Answer: Reliability

12 ________ defines how a particular pattern to be interpreted, and what action is to be taken based on that interpretation.

A Syntax

B Semantics

C Timing

D None of the above

View Answer

Answer: Semantics

13 The information to be communicated in a data communications system is the _______.

A Medium

B Protocol

C Message

D Transmission

View Answer

Answer: Message

14 In a ______ connection, two and only two devices are connected by a dedicated link.

A multipoint

B point-to-point

C (a) and (b)

D none of the above

View Answer

Answer: point-to-point

15 A ________ is a set of rules that governs data communication.

A protocol

B forum

C standard

D none of the above

View Answer

Answer: protocol

16 Which topology requires a multipoint connection?

A Bus

B Star

C Mesh

D Ring

View Answer

Answer: Bus

17 A _______ connection provides a dedicated link between two devices.

A primary

B multipoint

C point-to-point

D secondary

View Answer

Answer: point-to-point

18 A ______ is a data communication system spanning states, countries, or the whole world.

A MAN

B WAN

C LAN

D None of the above

View Answer

Answer: WAN

19 ______ refers to the physical or logical arrangement of a network.

A Topology

B Mode of operation

C Data flow

D None of the above

View Answer

Answer: Topology

20 There are ______________ Internet service providers.

A regional

B local

C national and international

D all of the above

View Answer

Answer: all of the above

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