Question

Tcp is a connection-oriented protocol that uses a three-way handshake to establish a connection to a system port. computer 1 sends a syn packet to computer 2. which packet does computer 2 send back?

Answer 1

TCP as an connection-oriented protocol ]uses a three-way handshake to establish a connection to a system port and the packet that does the above i and 2 are: SYN/ACK

What is SYN and ACK?

Client requests connection is one that is often done by sending SYN kind of (synchronize) message to the server.

Note that the Server is one that acknowledges by transmitting SYN-ACK (synchronize-acknowledge) message back to its client.

Hence, the  Client often responds using an ACK ( which is an acknowledge) message, and the connection is  said to be set up or established.

Hence, TCP as an connection-oriented protocol ]uses a three-way handshake to establish a connection to a system port and the packet that does the above i and 2 are: SYN/ACK

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