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

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1. Which of the following divides the high speed signal into frequency bands?

  • T switch
  • Time division multiplexer
  • Frequency Division Multiplexer
  • Code Division Multiplexer

2. Sending a file from users personal computers, primary memory or disk to another computer is called

  • uploading
  • hang on.
  • logging on
  • downloading

3. In OSI network architecture the dialogue control and token management are responsibilities of ________

  • session layer
  • network layer
  • transport layer
  • data link layer

4. Which one of the following is not a function of network layer?

  • routing
  • inter-networking
  • congestion control
  • none of the above

5. The interactive transmission of data within a time sharing system may be best suited to __________

  • half duplex
  • simplex lines
  • biflex lines
  • full duplex lines

6. How many OSI layers are covered in the X.25 standard?

  • 3
  • 2
  • 7
  • 6

7. The third layer of OSI model is _____

  • physical layer.
  • data link layer
  • network layer
  • transport layer.

8. The X.25 standard specifies a _________

  •  technique for start stop data
  • technique for dial access
  • DTE/DCE interface
  • data bit rate

9. Which of the following signals is not standard RS-232-C signal?

  • VDR
  • CTS
  • RTS
  • DSR
  • 1
  • 2
  • 4
  • 6

Section-2

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1. In ______ resolution the client is in direct contact more than one server.

  • a recursive
  • a cache
  • an interactive
  • default

2. Hypertext documents are linked through _______

  • DNS
  • TELNET
  • pointers
  • hyperlinks

3. Socket-style API for windows is called

  • wsock
  • winsock
  • wins
  • none of the above

4. Which of the following is not a retrieval method?

  • Gopher
  • Archie
  • HTML
  • HTTP

5. Which of the following types of channels moves data relatively slowly?

  • Voiceband channel
  • Wideband channel
  • Narrowband channel
  • Broadband channel

6. Which one of the following is a version of UDP with congestion control?

  • datagram congestion control protocol
  • stream control transmission protocol
  • structured stream transport
  • none of the mentioned

7. A distributed data processing configuration in which all activities must pass through a centrally located computer is called a _________

  • hierarchical network
  • spider network.
  • ring network
  • data control network

8. Network cable lies on ______ layer.

  • physical
  • data link
  • network
  • transport

9. Printer server uses a _____ which is a buffer that holds data before it is send to the printer.

  • queue
  • spool
  • terminal
  • buffer

10. Which one of the following is a transport layer protocol?

  • stream control transmission protocol
  • internet control message protocol
  • neighbor discovery protocol
  • dynamic host configuration protocol
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