ECAT Computer Science Data Communications Test Online

ECAT Computer Science Data Communications Test

ECAT Computer Science Chapter 3 Data Communications Online Test

Total Questions: 55
Time Allowed: 25 Minutes
Total Marks: 55
How to Attempt Test: Please choose the right Option in MCQ-type question.
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ECAT Computer Science Data Communications Test Online MCQs

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1. What is data communication?

2. What is the purpose of the Session Layer in the OSI model?

3. Which type of multiplexing combines signals based on frequency?

4. Which term is used when multiple devices transmit over a single channel?

5. What is encapsulation in data communication?

6. Which device converts digital signals to analog and vice versa?

7. Which of the following ensures that data is sent at a rate the receiver can handle?

8. Which of these is a symmetric encryption algorithm?

9. What does CRC stand for in data communication?

10. What is jitter in data communication?

11. Which method is used to represent characters in binary?

12. Which of the following represents a digital signal?

13. Which device is used to prevent data packet loops in a network?

14. Which transmission media is immune to electromagnetic interference?

15. What is the purpose of the OSI model in data communications?

16. What does protocol mean in data communication?

17. What is handshaking in communication?

18. Which unit is used to measure frequency?

19. Which of the following is an example of a transmission medium?

20. In which layer of the OSI model are routers primarily used?

21. Which of the following uses synchronous transmission?

22. Which layer of the OSI model is responsible for end-to-end communication and error recovery?

23. Which of the following uses radio waves for communication?

24. Which device regenerates data to maintain signal strength?

25. What is the main advantage of digital communication over analog?


 

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