Data Communication and Networking – Data Link Layer – Data Link Control – Flow Control MCQs

1. In the sliding window method of flow control, the receiver window _______ size when frames are received

2. In the sliding window method of flow control, the receiver window _______ size when an ACK is sent

3. A sender has a sliding window of size 15. The first 15 frames are sent. The first ACK received is ACK 15. What frame(s) has the receiver accepted?

4. A sender has a sliding window of size 15. The first 15 frames are sent. The first ACK received is ACK 15. What frame is the receiver expecting?

5. A sender has a sliding window of size 15. The first 15 frames are sent. How many frames are in the window now?

6. A sender has a sliding window of size 15. The first 10 frames are sent. How many frames are in the window now?

7. A sender has a sliding window of size 15. The first 15 frames are sent. The receiver receives 10 frames. How many frames can the receiver still receive?

8. A sender has a sliding window of size 15. The first 15 frames are sent. The receiver sends an ACK 10. How many spaces does the receiver window expand?

9. A sender has a sliding window of size 15. The first 15 frames are sent. The receiver sends an ACK 10 and expands its window. What is the size of the receiver window now?

10. The receiver's window in a sliding window protocol expands when _______.

11. The sender's window in a sliding window protocol expands when _______.

12. The stop-and-wait flow control method is the same as the sliding window method with a window size of _______.

13. Flow control is mainly a function of the _______ layer

14. _______ is the regulation of the amount of data that can be sent.

15. Which data link layer function answers the question: How much data may be sent?

16. Stop-and-wait is a _______ technique

17. Sliding window is a _______ technique

18. In the stop-and-wait method of flow control, the sender sends _______ at a time

19. In the sliding window method of flow control, the sender may send _______ at a time.

20. In the stop-and-wait method of flow control, after the receiver receives a data frame, _______ frame can be sent

21. What is the main disadvantage of stop-and-wait flow control?

22. In the stop-and-wait method of flow control, if 100 good data frames are sent and received, how many ACK frames have been sent by the receiver?

23. In the sliding window method of flow control, if 100 good data frames are sent and received, how many ACK frames have been sent by the receiver?

24. In the sliding window method of flow control, if the frame numbers range from 0 to 31, the size of the window is _______ frames.

25. In the sliding window method of flow control, if the frame numbers range from 0 to 63, the size of the window is _______ frames.

26. In the sliding window method of flow control, the sender window _______ size when frames are sent.

27. In the sliding window method of flow control, the sender window _______ size when an ACK is received.