Checksum field in TCP header is

1.	Checksum field in TCP header is
A.	one's complement of sum of header and data in bytes
B.	one's 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
Answer» D. better than md5 or sh1 methods

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Checksum field in TCP header is

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