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

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

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

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

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

5. Communication system is made up of:

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

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

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

9. It is 48 bit MAC, permanent address.

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

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

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

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

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

15. Wired Media is also called:

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

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

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

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

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