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Which of the two flag sequences , 10101010 and 11001100, is better for sending binary data 101010101010101010101010

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flag sequences are used with data to know from where data starts and ends. if flag sequence match with the data then we add escape characters... so if we include 10101010 as flag sequence. we have to add escape character after the sequence which apperas like the flag sequence.. so in given sequence we have to add escape character after every 10101010 which would make length of binary data longer... so 11001100 would be preferred for flag..
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