Which error-checking code uses extra parity bits inserted at specific positions to detect and correct single-bit memory errors?
ACyclic Redundancy Check (CRC)
BChecksum
CHamming Code
DLRC (Longitudinal Redundancy Check)
Explanation
Hamming Code is an error-correcting code (ECC) that detects up to two-bit errors or corrects single-bit errors by placing parity bits at power-of-two bit positions (1, 2, 4, 8, etc.). CRC is widely used for error detection in networks.
Exam Relevance
- Topic: Computer Networks
- Subtopic: Data Link Layer & Error Control

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