Data Communication MCQs and Answers with FREE PDF

Looking for some practice questions and answers on data communication? You’ve come to the right place. In this blog post, we’ll be discussing some of the most commonly asked questions on the topic. So whether you’re a beginner or an experienced professional, you’re sure to find something useful here.

Data communication is a vital part of any organization’s operations. Without effective data communication, businesses would be unable to function properly. Thankfully, there are plenty of resources available to help people learn about data communication.

One of the best ways to learn about data communication is to practice with MCQs (multiple-choice questions). By answering questions on data communication, you can test your knowledge and see where you need to brush up.

Here are some of the most common data communication MCQs and their answers:

Data Communication MCQs and Answers

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

  • primary
  • multipoint
  • point-to-point
  • secondary

2. Which topology requires a multipoint connection?

  • Bus
  • Star
  • Mesh
  • Ring

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

  • protocol
  • forum
  • standard
  • none of the above

4. 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

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

  • Medium
  • Protocol
  • Message
  • Transmission

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

  • Syntax
  • Semantics
  • Timing
  • None of the above

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

  • Performance
  • Security
  • Reliability
  • Feasibility

8. A television broadcast is an example of _______ transmission.

  • half-duplex
  • simplex
  • full-duplex
  • automatic

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

  • simplex
  • half-duplex
  • full-duplex
  • all of the above

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

  • Semantics
  • Timing
  • Syntax
  • None of the above

11.  This was the first network.

  • CSNET
  • NSFNET
  • ARPANET
  • ANSNET

12. Devices may be arranged in a _____ topology.

  • mesh
  • ring
  • bus
  • all of the above

13.  _______ is the protocol suite for the current Internet.

  • UNIX
  • NCP
  • TCP/IP
  • ACM

14.  ________ is a collection of many separate networks.

  • A WAN
  • An internet
  • A LAN
  • None of the above

15.  In a ________ connection, three or more devices share a link.

  • point-to-point
  • multipoint
  • (a) and (b)
  • none of the above

16. The session, presentation, and application layers are the ____ support layers.

  • user
  • network
  • both (a) and (b)
  • neither (a) nor (b)

17. The physical, data link, and network layers are the ______ support layers.

  • network
  • user
  • both (a) and (b)
  • neither (a) nor (b)

18.  The ________ layer is responsible for the process-to-process delivery of the entire message.

  • transport
  • physical
  • network
  • data link

19.  The _______ layer lies between the network layer and the application layer.

  • Data link
  • Transport
  • Physical
  • None of the above

20.  The Internetworking Protocol (IP) is a ________ protocol.

  • connection-oriented
  • reliable
  • both a and b
  • none of the above

FAQs on Data Communication

1. What is data communication?

Data communication is the process of transmitting data from one location to another. This can be done via a variety of means, including physical cables, wireless signals, and satellites.

2. What are the three main components of data communication?

The three main components of data communication are data sources, data receivers, and data transmission mediums.

3. What are some of the most common data transmission mediums?

Some of the most common data transmission mediums include twisted pair cables, coaxial cables, and fiber optic cables.

4. What are some of the most common data communication protocols?

Some of the most common data communication protocols include Ethernet, Token Ring, and TCP/IP.

5. What is bandwidth?

Bandwidth is the amount of data that can be transferred between two points in a given amount of time.

6. What is latency?

Latency is the amount of time it takes for a data packet to travel from one point to another.

7. What is jitter?

Jitter is the variation in latency between data packets.