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Joel, a professional hacker, targeted a company and identified the types of websites frequently visited by its employees. Using this information, he searched for possible loopholes in these websites and injected a malicious script that can redirect users from the web page and download malware onto a victim's machine. Joel waits for the victim to access the infected web application so as to compromise the victim's machine. Which of the following techniques is used by Joel in the above scenario?

A.

DNS rebinding attack

B.

Clickjacking attack

C.

MarioNet attack

D.

Watering hole attack

Which of the following scanning method splits the TCP header into several packets and makes it difficult for packet filters to detect the purpose of the packet?

A.

ACK flag probe scanning

B.

ICMP Echo scanning

C.

SYN/FIN scanning using IP fragments

D.

IPID scanning