Q. In TCP protocol header “Checksum” is of:

A
16 bits
B
8 bits
C
32 bits
D
64 bits
Solution:

The IPv4 header checksum is a simple checksum used in version 4 of the Internet Protocol (IPv4) to protect the header of IPv4 data packets against data corruption. This checksum is calculated only for the header bytes (with the checksum bytes set to 0), is 16 bits long and is a part of the IP packet header.

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