What happens during a SYN flood attack?

A.
TCP connection requests floods a target machine is flooded with randomized source address & ports for the TCP ports.

B.
A TCP SYN packet, which is a connection initiation, is sent to a target machine, giving the target host’s address as both source and destination, and is using the same port on the target host as both source and destination.

C.
A TCP packet is received with the FIN bit set but with no ACK bit set in the flags field.

D.
A TCP packet is received with both the SYN and the FIN bits set in the flags field.