Checksum field in TCP header is
2020
Checksum field in TCP header is
- A.
ones complement of sum of header and data in bytes
- B.
ones complement of sum of header, data and pseudo header in 16 bit words
- C.
dropped from IPv6 header format
- D.
better than md5 or sh1 methods
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Correct answer: B
The TCP checksum is calculated by summing 16-bit words of the header, data payload, and a pseudo-header containing IP information. The final checksum value is the ones complement of this sum.
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