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Chapter 6 · SecurityPractice
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CONCEPT PRACTICE

DNS cache poisoning

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2025 Autumn · Subject A · Q29

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Q29. The IP address of server X that is owned by an attacker, is recorded on Company B’s DNS cache server as the IP address corresponding to the FQDN of Company A’s web server. As a result, which of the following are the users that unintentionally connect to server X? Here, the employees of Company A and Company B use their own company’s DNS cache server for name resolution.

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Source: 2025A_FE-A_Questions.pdf, PDF page 14. ID: 2025A-A-Q029. Explanation written for this textbook.

Original question · Q29
Q29. The IP address of server X that is owned by an attacker, is recorded on Company B’s DNS cache server as the IP address corresponding to the FQDN of Company A’s web server. As a result, which of the following are the users that unintentionally connect to server X? Here, the employees of Company A and Company B use their own company’s DNS cache server for name resolution.

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