Top 50 Data Communication and Networking Frequently Asked MCQs

1. ………………….is the lowest layer of the OSI conceptual network model.

2. …………………….is a seven-layer conceptual model based on networking technologies and services:

3. Choose the correct association between a technology and its network type:

4. In which layer of the OSI network model the router operates:

5. ……………………..is the physical arrangement of devices connected to a local area network via cables:

6. Choose the correct association of network type:

7. In which layer of the OSI network model the hub works:

8. Choose the correct example of half-duplex communication:

9. Choose the correct example of full-duplex communication:

10. In OSI model the dialogue control and token management is the responsibility of which layer:

11. A……………..is uniquely identified by an IP address and a port number:

12. Who is given the title of “father of the Internet”:

13. In which layer of the OSI model hub is present?

14. The IPV6 is represented by how many bits:

15. Choose the correct option related to VPN:

16. The first network who implemented the TCP/IP protocols was:

17. Which multiplexing technique is used by the optical fibers to mix different wavelengths into a single light for transmission?

18. Who developed the Open Systems Interconnection (OSI) model standard?

19. Which of the following expansion card is required to connect to a network?

20. Choose the correct example of simplex communication:

21. Choose the full form of TCP/IP:

22. Choose the correct example related to broadband communication channel:

23. Logical subdivision of IP address into two parts one part represent host address and the other network address is known as:

24. Choose the correct association between a device and its functionality:

25. Choose the correct option related to the default port of SMTP:

26. Which of the following system is used to determine the exact location of an object on the earth?

27. In which layer of the OSI network model the TCP and UDP operates:

28. The information is transmitted from one place to another through which of the following option:

29. The purpose of domain name server (DNS) is:

30. Which of the following is required to establish a successful connection between two computers?

31. Choose the correct full form of HTTP:

32. In which layer of the OSI network model the repeater operates:

33. A traditional TV transmitter which provides multiple channels through a single cable uses……………:

34. In which layer of the OSI network model the bridge operates:

35. Which kind of transmission is involved between mouse and personal computer?

36. Choose the correct association between a technology and its network type:

37. In ………………layer of the OSI model IP addresses are added during encapsulation:

38. There are how many parts involved in HTTP request?

39. Choose the correct option related to the default port of HTTP:

40. Choose the correct option related to default port of HTTPS:

41. In ………………layer of the TCP/IP model port addresses are defined:

42. ………………is a standard system of rules that enable a device to communicate over the network:

43. In the OSI conceptual model the routing is performed by the layer:

44. The first early packet switching network was:

45. The loss in signal strength as light travels long through the optical fiber is known as:

46. ………………is the process of converting information into digital form so that the computer can understand this format:

47. In networking a…………………….is a system designed to prevent unauthorized access to a network by filtering the packets:

48. Choose the correct equivalence between the TCP/IP layer and the OSI model layer:

49. The lower three layers of the OSI model closely correspond to which standard:

50. Which of the following transmission medium is more secure and fastest in term of data transfer?