John works as a professional Ethical Hacker. He has been assigned a project to test the security
of www.we-are-secure.com. He observes that the We-are-secure server is vulnerable to a special
type 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:
l Disabling IP-directed broadcasts at the We-are-secure router
l 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?

A.
Smurf attack

B.
Jolt attack

C.
Fraggle attack

D.
Teardrop attack

Explanation: