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

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

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

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

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

6. Converting digital signal to analogic called:

7. This organization is concerned with the development of internet architecture and smooth operation of the internet.

8. Communication system is made up of:

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

10. The number of bits used in an IPV 4 address are:

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

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

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

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

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

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

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

18. Both Physical and Logical addresses are:

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

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