John works as a professional Ethical Hacker. He has been assigned a project to test the security of of DoS attack and he makes the following suggestions to the security authority to protect the…

John works as a professional Ethical Hacker. He has been assigned a project to test the security of of DoS attack and he makes the following suggestions to the security authority to protect the server from this DoS attack. The countermeasures against this type of DoS attack are as follows:

Disabling IP-directed broadcasts at the We-are-secure router Configuring local computers so as not to respond to such ICMP packets that are configured to be sent to IP broadcast addresses Which of the following DoS attacks has John discovered as a vulnerability for the We-are-secure security network?