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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

16. Both Physical and Logical addresses are:

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

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

19. Collection of raw facts and figures is called:

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