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

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

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

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

4. Wired Media is also called:

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

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

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

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

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

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

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

12. It is 48 bit MAC, permanent address.

13. Collection of raw facts and figures is called:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

31. Communication system is made up of:

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

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

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

35. Converting digital signal to analogic called:

36. Both Physical and Logical addresses are:

37. Loss of signal energy is called:

38. Signals used by computer are the:

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

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

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

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

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

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

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

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