19. D IS INCORRECT 20. B IS INCORRECT need the right answers please

Question 19 (Mandatory) (1 point) which of the following is NOT true about the smurf attak? smurf attack is a ping flood attack it exploits the broadcasting feature it works by set destination address the target machine and the source address as the broadcast address the victim machine can on a remote machine Question 20 (Mandatory) (1 point) Saved which of the following is not true about SYN flooding attack? it works by sending a large amount of the SYN packets without sending SYN/ACK packet it works because the server site has to keep as many half-open sessions in the memory as possible. SYN cookies can be used to stop SYN Flooding since SYN cookie mechanims has not been implemented in windows, then windwos cannot prevent SYN Flooding