Computer Networks - Physical and Data Link Layer
Which error detection method uses polynomial division to detect errors?
Which error detection method uses polynomial division to detect errors?
easy📝 Conceptual Q2 of 15
Step-by-Step Solution
Solution:
Step 1: Recall CRC method
CRC uses polynomial division on data bits to generate a remainder for error checking.Step 2: Match method to description
Only CRC among options uses polynomial division; checksum sums data, parity adds bit, Hamming corrects errors.Final Answer:
Cyclic Redundancy Check (CRC) -> Option CQuick Check:
Polynomial division = CRC [OK]
Quick Trick: CRC uses polynomial math for error detection [OK]
Common Mistakes:
MISTAKES- Confusing checksum with polynomial division
- Thinking parity uses polynomial division
- Mixing CRC with error correction codes
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