Exam CISM topic 1 question 387 discussion

Prevents IP spoofing attacks

D should be the answer

Reverse lookups are commonly used by email servers. Email servers check and see if an email message came from a valid server before bringing it onto their network.

D. Internet protocol (IP) spoofing. Reverse lookups, also known as reverse DNS (Domain Name System) lookups, can be used to verify the authenticity of the source IP address of a network connection. This helps prevent Internet protocol (IP) spoofing, where an attacker tries to impersonate a legitimate IP address to gain unauthorized access or carry out malicious activities. By performing a reverse lookup, you can check whether the hostname associated with an IP address matches the expected hostname, helping to detect and prevent IP spoofing attempts.

D. Internet protocol (IP) spoofing. Reverse lookups, also known as reverse DNS (Domain Name System) lookups, can be used to verify the authenticity of the source IP address of a network connection. This helps prevent Internet protocol (IP) spoofing, where an attacker tries to impersonate a legitimate IP address to gain unauthorized access or carry out malicious activities. By performing a reverse lookup, you can check whether the hostname associated with an IP address matches the expected hostname, helping to detect and prevent IP spoofing attempts.

IMHO is D, I don’t understand how a lookup could help securing sessions

D. Internet protocol (IP) spoofing.

reverse lookups can be a useful tool in preventing malicious activities (including hacking session) and enforcing access controls, making them an important part of many security strategies.

Reverse Lookups can prevent IP Spoofing. Answer is D.