In TCP protocol header "Checksum" is of:
A16 bits
B32 bits
C8 bits
D64 bits
Answer:
A. 16 bits
Read Explanation:
The "checksum" field in a TCP protocol header is 16 bits long.
The "checksum" in the TCP (Transmission Control Protocol) protocol header is a mechanism for ensuring data integrity.
As data travels over a network, it can be altered for a variety of reasons (e.g., electronic interference, hardware failure). Checksums help detect these alterations.
TCP is a "reliable" protocol. That is, it ensures that the data sent is received in the same order and in the correct order. Checksums play a major role in ensuring this reliability.