Question

Multiple choice. Please give a brief explanation for your answer.

An attacker sent multiple broadcast messages to the network routers, spoofing an IP address of one of the network servers. This caused the network to send a flood of packets to that server and it is no longer responding. What best describes this attack?
A) DDoS attack
B) TCP SYN flood attack
C) Smurf Attack
D) TCP hijacking attack

Answer 1

TCP SYN flood attack

In a TCP SYN flood attack, the attacker sends repeated SYN packets to every port on the targeted router.
The router, unaware of the attack, receives multiple legitimate requests to establish communication.
It responds to each attempt with a SYN-ACK packet from each open port.