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

1. Loss of signal energy is called:

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

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

4. Communication system is made up of:

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

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

7. It is 48 bit MAC, permanent address.

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

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

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

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

12. Collection of raw facts and figures is called:

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

14. Signals used by computer are the:

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

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

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

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

19. Converting digital signal to analogic called:

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