Question

    What is the range of the header of a TCP segment in

    bytes?
    A 10-20 bytes Correct Answer Incorrect Answer
    B 20-60 bytes Correct Answer Incorrect Answer
    C 10-40 bytes Correct Answer Incorrect Answer
    D 40-80 bytes Correct Answer Incorrect Answer

    Solution

    • Why Correct: The minimum size of the TCP header is 20 bytes (without options) and maximum is 60 bytes (with options).
    • Why Others are Wrong:
      • 10–20 bytes: Too small, below the standard.
      • 10–40 bytes: Incorrect minimum.
    40–80 bytes: TCP never goes beyond 60 bytes.

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