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

1. Signals used by computer are the:

2. Converting digital signal to analogic called:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

20. Wired Media is also called: