Data Communication and Networking MCQs offer a valuable resource to test and enhance your understanding of the intricate world of data transmission, network protocols, and communication technologies. Whether you’re a student preparing for exams or a professional aiming to strengthen your knowledge, these multiple-choice questions with Answers cover a wide spectrum of topics, including network architecture, protocols, and security. These MCQs will help students in university exams,competitive exams and interviews preparation.

Section-1

PRACTICE IT NOW TO SHARPEN YOUR CONCEPT AND KNOWLEDGE

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1. Network of networks is known as _________

  • intranet
  • internet
  • Local Area Network
  • WAN

2. An interconnection of ________________________ computers is called an Internet

  • Distributed
  • Co-Ordinated
  • Autonomous
  • Integrated

3. When a packet with the code is transmitted, it is received and processed by every machine on the network. This mode of operation is called

  • broadcasting
  • multi casting
  • unicasting
  • point-to-point

4. point-to-point transmission with one sender and one receiver is sometimes called ________

  • multicasting
  • unicasting
  • personal area network
  • LAN

5. The entities comprising the corresponding layers on different machine are called ________

  • protocol
  • peers
  • interface
  • flow control

6. When the packets are small and all the same size, they are often called ________

  • packet switched
  • cells
  • circuit switched
  • virtual circuit

7. A collection of interconnected networks is called as __________

  • internet
  • intranet
  • topology
  • interface

8. Starting around 1988, the more advanced ______ twisted pairs were introduced.

  • category3
  • category5
  • category8.
  • category10

9. Each ray is said to have a different mode, so a fiber having this property is called ________

  • unimode
  • singlemode
  • multimode
  • triplemode

10. The number of oscillations per second of a wave is called its ______

  • wavelength
  • frequency
  • spectrum
  • sequence

Section-2

PRACTICE IT NOW TO SHARPEN YOUR CONCEPT AND KNOWLEDGE

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1. In virtual circuit network each packet contains

  • full source and destination address
  • a short VC number
  • both (a) and (b)
  • none of the above

2. Which of the following method is used for dedicated communications packet between two devices through one or more intermediate switching nodes?

  • Switch network.
  • Circuit switching
  • Packet switching
  • Message switching

3. Which of the following technique is used for allocating capacity on a satellite channel using fixedassignment FDM?

  • Amplitude modulation
  • Frequency division multiple access
  • Frequency shift keying
  • Frequency modulation

4. Which of the following device is used to connect two systems, especially if the systems use different protocols?

  • Hub
  • Bridge
  • Gateway
  • Repeater

5. A bridge functions in a _______ layer.

  • application, presentation
  • session, transport.
  • physical, data link
  • data link, network

6. Which of the following medium access control technique is used fro bus/tree?

  • Token ring
  • Token bus
  • CSMA
  • MAC

7. Which of the following network access standard is used for connecting stations to a packet- switched network?

  • X.3
  • X.21
  • X.25
  • X.75

8. A repeater takes a weakened or corrupted signal and _______ it.

  • amplifies
  • regenerates
  • reroutes
  • resamples

9. Routers functions in the _________ layers.

  • application, presentation and session
  • session, transport and network.
  • physical, data link and network.
  • data link, network and transport.

10. Identify the following IP address: 192.5.0.0 _______

  • host ip address
  • limited broadcast address
  • direct broadcast address
  • network address
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