2000 Paper 5 Question 3

2000 Paper 5 Question 3
2000 Paper 5 Question 3
Digital Communication I
What is meant by the term flow control ?
[3 marks]
What is meant by the term credit-based flow control?
[4 marks]
What is meant by start–stop (or XON–XOFF) flow control?
[4 marks]
A start–stop system is used on a 10 kbps link with a constant delay of 5 ms. How
much buffer must a receiver keep in reserve for “stopping time” in order to prevent
information loss?
[3 marks]
Which system is more appropriate to use across the Internet and why? [6 marks]
1
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