Computer Networks - Physical and Data Link Layer
Why does the sliding window protocol use sequence numbers that wrap around after a maximum value?
Why does the sliding window protocol use sequence numbers that wrap around after a maximum value?
hard📝 Conceptual Q10 of 15
Step-by-Step Solution
Solution:
Step 1: Understand sequence number role
Sequence numbers identify frames and help detect duplicates or lost frames.Step 2: Explain wrap-around necessity
Limited bits require numbers to wrap; this prevents confusion by reusing numbers carefully.Final Answer:
To uniquely identify frames within the window and avoid confusion after many frames -> Option AQuick Check:
Sequence numbers wrap to manage identification [OK]
Quick Trick: Sequence numbers wrap to avoid frame confusion [OK]
Common Mistakes:
MISTAKES- Thinking wrap-around increases window size
- Confusing wrap-around with compression
- Assuming wrap-around encrypts data
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