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

1. Loss of signal energy is called:

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

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

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

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

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

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

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

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

10. Wired Media is also called:

11. Signals used by computer are the:

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

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

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

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

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

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

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

19. Communication system is made up of:

20. Both Physical and Logical addresses are: