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Question 17453 – ISRO CS-2023
February 15, 2024
Question 1134 – HTML
February 15, 2024
Question 17453 – ISRO CS-2023
February 15, 2024
Question 1134 – HTML
February 15, 2024

Question 58 – ISRO-2007

Bit stuffing refers to

Correct Answer: A

Question 23 Explanation: 
→ Bit stuffing is most easily described as insertion of a 0 bit after a long run of 1 bits.
→ In SDLC the transmitted bit sequence “01111110” containing six adjacent 1 bits is the Flag byte.
→ Bit stuffing ensures that this pattern can never occur in normal data, so it can be used as a marker for the beginning and end of frame without any possibility of being confused with normal data.
→ Bit stuffing is the insertion of non information bits into data. stuffed bits should not be confused with overhead bits. Overhead bits are non-data bits that are necessary for transmission (usually as part of headers, checksums etc).
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 nipple to the flag sequence
D
appending a nipple to the use data stream
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