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

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

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

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

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

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

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

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

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

11. Both Physical and Logical addresses are:

12. Communication system is made up of:

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

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

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

16. Wired Media is also called:

17. In optical fiber or fiber-optic cable data is transferred in the form of:

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

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

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