CertNexus Certified Cyber Secure Coder (CSC) — Question 51

Which of the following is susceptible to a cache poisoning attack?

Answer options

• A. Domain Name System (DNS)
• B. Secure Shell (SSH)
• C. Hypertext Transfer Protocol Secure (HTTPS)
• D. Hypertext Transfer Protocol (HTTP)

Correct answer: A

Explanation

The Domain Name System (DNS) is vulnerable to cache poisoning attacks because it relies on caching to improve performance, making it possible for an attacker to insert false information into the cache. Secure Shell (SSH), HTTPS, and HTTP do not use the same caching mechanisms and are not typically affected by this type of attack.