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

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

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

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

4. This computer network can spread across an entire city, college campus, or a small region.

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

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

7. Collection of raw facts and figures is called:

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

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

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

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

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

13. The topology in which all computers are connected to a central device called hub is:

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

15. Communication system is made up of:

16. Signals used by computer are the:

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

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

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

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