Data Communication and Computer Networks – Online MCQs Test – Computer Science 9th

1. It is a 32 bit IP address. It is temporary.

2. The topology in which all computers are connected to a central device called hub is:

3. This model divides a communication system into seven abstraction layers.

4. It is the rate at which data is transferred and normally measured in bits per second.

5. Loss of signal energy is called:

6. Router determines data path to transfer data packets which is the:

7. This computer network can spread across an entire city, college campus, or a small region.

8. Wired Media is also called:

9. This organization is concerned with the development of internet architecture and smooth operation of the internet.

10. It means change in the shape of the signal.

11. The physical layout in which computers are connected is called:

12. For transmission, FM, AM radios, television and cordless phones use:

13. Both Physical and Logical addresses are:

14. Twisted-pair cable, coaxial cable, radio waves are examples of:

15. Change in the shape of signal between sender and receiver is called:

16. If computers and other devices are connected with a single cable, it is called:

17. An electrical signal that is converted into a pattern of bits to represent a sequence of discrete values, at any given time is called:

18. The loss of energy in transmission signal refers to:

19. Sometimes, signals traveling through transmission media lose their quality This phenomenon is called:

20. It is a networking device that connects computers and other devices.

21. Collection of raw facts and figures is called:

22. It has the ability of sending and receiving signals that allows computers to share information with each other.

23. It is a device that connects two or more networks.

24. In optical fiber or fiber-optic cable data is transferred in the form of:

25. If you are an electrical or electronic engineer, you should join:

26. It is used for long distance transmission of data and covers a larger geographical area like cities, provinces or even countries.

27. The number of bits used in an IPV 4 address are:

28. Signal-to-noise ratio is often expressed in:

29. It is the channel or path through which the message is carried from sender to the receiver.

30. The human voice is example of an/a:

31. It is a wireless or physical path between the sender and receiver through which data is sent and received from one place In another.

32. Communication system is made up of:

33. This organization is responsible for endorsing and coordinating the functions of the other standards organizations.

34. In this signals are transmitted in a narrow pathway using physical links.

35. The rules and procedures on which computers exchange data on network are called:

36. Signals used by computer are the:

37. Unwanted signal that mixes lip with the original signal during the transmission of data is called:

38. It is also called Wired or Bounded transmission media.

39. Radio-waves, microwaves and infrared are examples of:

40. It is the aunt her of signals transmitted per second.

41. It is 48 bit MAC, permanent address.

42. It is an agreement between two parties or venders, using communication devices.

43. The text, numbers, symbols, images, voice and video which are processed by computers and digital devices are called:

44. It is a group of computer and peripheral devices which are connected in a limited area such as school, laboratory, home and office building.

45. Converting digital signal to analogic called:

46. Continuously varying signals or waves that change with time period are called: