This Portion of Data Communication and Networking contains Data Communication and Networking Basics MCQs (Multiple Choice Questions Answers).

All the Multiple Choice Question and Answer (MCQs) have been compiled from the books of Data Communication and Networking by The well known author behrouz forouzan.

This Section covers below lists of topics.

  1. Data communications system MCQs.
  2. Simplex, half-duplex, or full-duplex MCQs.
  3. Topology MCQs.
  4. Local area network (LAN), Metropolitan-area network (MAN), Wide area network (WAN) MCQs.
  5. Internet service providers (ISPs) MCQs.

Practice it now to sharpen your concept.

1.In _______ transmission, the channel capacity is shared by both communicating devices at all times
  • simplex
  • half-duplex
  • full-duplex
  • half-simplex
2.In the original ARPANET, _______ were directly connected together
  • IMPs
  • host computers
  • networks
  • routers
3.This was the first network.
  • CSNET
  • NSFNET
  • ANSNET
  • ARPANET
4.Which organization has authority over interstate and international commerce in the communications field?
  • ITU-T
  • IEEE
  • FCC
  • ISOC
5._______ are special-interest groups that quickly test, evaluate, and standardize new technologies.
  • Forums
  • Regulatory agencies
  • Standards organizations
  • All of the above
6.Which agency developed standards for physical connection interfaces and electronic signaling specifications?
  • EIA
  • ITU-T
  • ANSI
  • ISO
7.______ is the protocol suite for the current Internet.
  • TCP/IP
  • NCP
  • UNIX
  • ACM
8.______ refers to the structure or format of the data, meaning the order in which they are presented.
  • Semantics
  • Syntax
  • Timing
  • All of the above
9.________ defines how a particular pattern to be interpreted, and what action is to be taken based on that interpretation.
  • Semantics
  • Syntax
  • Timing
  • None of the above
10._______ refers to two characteristics: when data should be sent and how fast it can be sent.
  • Semantics
  • Syntax
  • Timing
  • none of the above
11.Data flow between two devices can occur in a _______ way.
  • simplex
  • half-duplex
  • full-duplex
  • all of the above
12.In a ______ connection, two and only two devices are connected by a dedicated link.
  • multipoint
  • point-to-point
  • (a) and (b)
  • none of the above
13.In a ________ connection, three or more devices share a link.
  • multipoint
  • point-to-point
  • (a) and (b)
  • none of the above
14.______ refers to the physical or logical arrangement of a network.
  • Data flow
  • Mode of operation
  • Topology
  • None of the above
15.Devices may be arranged in a _____ topology
  • mesh
  • ring
  • bus
  • all of the above
16.A _______ is a data communication system within a building, plant, or campus, or between nearby buildings.
  • MAN
  • LAN
  • WAN
  • none of the above
17.A ______ is a data communication system spanning states, countries, or the whole world.
  • MAN
  • LAN
  • WAN
  • none of the above
18.________ is a collection of many separate networks.
  • A WAN
  • An internet
  • a LAN
  • None of the above
19.There are ______________ Internet service providers.
  • local
  • regional
  • national and international
  • all of the above
20.A ________ is a set of rules that governs data communication.
  • forum
  • protocol
  • standard
  • none of the above
21.The _______ is the physical path over which a message travels.
  • Protocol
  • Medium
  • Signal
  • All the above
22.The information to be communicated in a data communications system is the _______.
  • Medium
  • Protocol
  • Message
  • Transmission
23.Frequency of failure and network recovery time after a failure are measures of the _______ of a network.
  • Performance
  • Reliability
  • Security
  • Feasibility
24.An unauthorized user is a network _______ issue.
  • Performance
  • Reliability
  • Security
  • All the above
25.Which topology requires a central controller or hub?
  • Mesh
  • Star
  • Bus
  • Ring
26.Which topology requires a multipoint connection?
  • Mesh
  • Bus
  • Ring
  • Star
27.Communication between a computer and a keyboard involves ______________ transmission.
  • simplex
  • half-duplex
  • full-duplex
  • automatic
28.A television broadcast is an example of _______ transmission.
  • simplex
  • half-duplex
  • full-duplex
  • automatic
29._______ connection provides a dedicated link between two devices.
  • point-to-point
  • multipoint
  • primary
  • secondary
30.In a _______ connection, more than two devices can share a single link.
  • point-to-point
  • multipoint
  • primary
  • secondary

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