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17 votes

Bit stuffing refers to inserting a 0 in user stream to differentiate it with a flag.

Each frame begins and ends with a special bit pattern called a flag byte ex. 01111110.

Whenever sender data link layer encounters five consecutive ones in the data stream, it
automatically stuffs a 0 bit into the outgoing stream.

When the receiver sees five consecutive incoming ones followed by a 0 bit, it automatically
destuffs the 0 bit before sending the data to the network layer.

Option A is correct.

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Bit Stuffing refers to the insertion of non information bits into data.

Application:-

1.To Differentite the Frame delimator (Used for Synchronization purpose)From the original data.

2.For bringing bit streams that do not necessarily have the same or rationally related bit rates up to a common rate.

3.To fill buffers or frames.

https://en.m.wikipedia.org/wiki/Bit_stuffing
Answer:

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