Here are some multiple-choice questions for computer networking in Computer Science class 12.

The answers are colored red. Enjoy it.

1. A network that needs human beings to manually route signals is called….

A) Fiber Optic Network         B) Bus Network

C) T-switched network           D) Ring network

2. TCP/IP …………….. layer corresponds to the OSI models to three layers.

A) Application           B) Presentation

C) Session                 D) Transport

3. Which of the transport layer protocols is connection-less?

A) UDP                      B) TCP

C) FTP                       D) Nvt

4. Which of the following applications allows a user to access and change remote files without an actual transfer?

A) DNS                     B) FTP

C) NFS                     D) Telnet

5. The data unit in the TCP/IP data link layer is called a …..

A) Message             B) Segment

C) Datagram           D) Frame

6. DNS can obtain the …………….. of host if its domain name is known and vice versa.

A) Station address       B) IP address

C) Port address            D) Checksum

7. Which of the following OSI layers correspond to TCP/IP’s application layer?

A) Application           B) Presentation

C) Session                 D) All of the above

8. Devices on one network can communicate with devices on another network via a …….

A) File Server            B) Utility Server

C) Printer Server        D) Gateway

9. A communication device that combines transmissions from several I/O devices into one line is a

A) Concentration         B) Modifier

C) Multiplexer           D) Full duplex file

10. Which layers of the OSI determines the interface often a system with the user?

A) Network              B) Application

C) Data link             D) Session

11. Which of the following of the TCP/IP protocols is used for transferring files from one machine to another?

A) FTP                C) SNMP

B) SMTP             D) Rpe

12. In which OSI layers does the FDDI protocol operate?

A) Physical        B) Datalink

C) Network       D) A and B

13. In FDDI, data normally travel on ………………

A) The primary ring            B) The Secondary ring

C) Both rings                     D) Neither ring

14. The …………layer of the OSI model can use the trailer of the frame for error detection.

A) Physical                 B) Datalink

C) Transport               D) Presentation

15. In a …………….topology, if there are n devices in a network, each device has n-1 ports for cables.

A) Mesh                  B) Star

C) Bus                     D) Ring

16. Another name for Usenet is

A) Gopher            B) Newsgroups

C) Browser           D) CERN

17. The standard suite of protocols used by the Internet, Intranets, extra-nets, and some other networks.

A) TCP/IP               B) Protocol

C) Open system      D) Internetwork processor

18. State whether the following is True or False.

i) In a bus topology, heavy Network traffic slows down the bus speed.

ii) It is a multi-point configuration.

A) True, True           B) True, False

C) False, True         D) False, False

19. Which of the following is the logical topology?

A) Bus                    B) Tree

C) Star                   D) Both A and B

20. Which of the following are the drawbacks of Ring Topology?

A) Failure of one computer, can affect the whole network

B) Adding or removing the computers disturbs the network activity.

C) If the central hub fails, the whole network fails to operate.

D) Both of A and B

21. In a mesh topology, the relationship between one device and another is …………..

A) Primary to peer
B) Peer to primary
C) Primary to secondary
D) Peer to Peer

22. The performance of the data communications network depends on …………..

A) Number of users
B) The hardware and software
C) The transmission
D) All of the above

23. Find out the OSI layer, which performs token management.

A) Network Layer
B) Transport Layer
C) Session Layer
D) Presentation Layer

24. The name of the protocol which provides virtual terminal in TCP/IP model is.

A) Telnet

25. layer one of the OSI model is

A) Physical layer
B) Link layer
C) Router layer
D) Broadcast layer

26. What is the name of the network topology in which there are bi-directional links between each possible node?

A) Ring
B) Star
C) Tree
D) Mesh

27. What is the commonly used unit for measuring the speed of data transmission?

A) Bytes per second
B) Baud
C) Bits per second
D) Both B and C

28. Which of the communication modes support two-way traffic but in only once the direction of a time?

A) Simplex
B) Half-duplex
C) Three – quarter’s duplex
D) Full duplex

29. The loss in signal power as light travels down the fiber is called ………….

A) Attenuation
B) Propagation
C) Scattering
D) Interruption

30. ……………………. is an interconnection of networks that provide universal communication services over heterogeneous physical networks.

A) Internet
B) Intranet
C) Network

31. Commercial networks provide access to the ………………. to subscribers, and networks owned by commercial organizations for internal use that also have connections to the internet.

A) backbones
B) Network access points(NAPs)
C) Internet Exchange Points(IXPs)
D) All of the above

32. The …………………… layer is provided by the program that uses TCP/IP for communication.

A) Transport
B) Application
C) Internetwork
D) Network interface

33) The ………………….. layer Provides the end-to-end data transfer by delivering data from an application to its remote peer.

A) Transport
B) Application
C) Internetwork
D) Network interface

34) …………….. provides connection-oriented reliable data delivery, duplicate data suppression, congestion control, and flow control.


35) ………………. is used by applications that need a fast transport mechanism and can tolerate the loss of some data.


36) ……………… is a connection-less protocol that does not assume reliability from lower layers, which does not provide reliability, flow control, or error recovery.

A) Transmission control protocol
B) Internet protocol
C) User Datagram Protocol
D) Simple Mail Transfer Protocol

Also, read

 Class 12 Physics: Important Questions and Topics for the NEB exam.

Class 12 Chemistry: Important Questions and Topics for the NEB exam.


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