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

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

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

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

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

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

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

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

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

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

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

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

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

13. Both Physical and Logical addresses are:

14. Converting digital signal to analogic called:

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

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

17. Signals used by computer are the:

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

19. Loss of signal energy is called:

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