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

1. Loss of signal energy is called:

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

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

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

5. Wired Media is also called:

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

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

8. Converting digital signal to analogic called:

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

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

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

12. It is 48 bit MAC, permanent address.

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

14. Both Physical and Logical addresses are:

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

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

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

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

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

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