Bit stuffing refers to
- A. inserting a '0' in user stream to differentiate it with a flag
- B. inserting a '0' in flag stream to avoid ambiguity
- C. appending a nibble to the flag sequence
- D. appending a nibble to the use data stream
Answer: A. inserting a '0' in user stream to differentiate it with a flag
Explanation: Bit stuffing inserts a 0 after five consecutive 1s in the data to prevent it from mimicking the flag pattern (01111110).