TCP Flags

Question 1

This type of termination of the connection is used when the sender feels that something has gone wrong with the TCP connection or that the conversation should not have existed in the first place. For example, if a system receives information that is outside of an established session, it will send this in response.

Answer 1

RST - Reset flag

Question 2

This flag is used to request that the connection be terminated. This usually occurs at the end of a session and allows for the system to release the reserved resources that were set aside for this connection.

Answer 2

FIN - Finish flag

Question 3

This flag is set in the first packet sent from the sender to a receiver as a means of establishing a TCP connection and initiating a three-way handshake.

Answer 3

SYN - Syncronization flag

Question 4

Once a connection is initiated, the receiver sends back ___ and ___ flag set in a packet which is then sent back to the initiator to confirm they are ready to initiate the connection. Finally, the initial sender replies with ___ flag set in a packet so that the three-way handshake can be completed and data transmission can begin.

Answer 4

SYN and ACK
ACK