CompTIA CySA+ (CS0-003) — Question 441

A virtual web server in a server pool was infected with malware after an analyst used the internet to research a system issue. After the server was rebuilt and added back into the server pool, users reported issues with the website, indicating the site could not be trusted. Which of the following is the most likely cause of the server issue?

Answer options

• A. The server was configured to use SSL to securely transmit data.
• B. The server was supporting weak TLS protocols for client connections.
• C. The malware infected all the web servers in the pool.
• D. The digital certificate on the web server was self-signed.

Correct answer: D

Explanation

The correct answer is D because self-signed certificates are not trusted by clients, leading to warnings and trust issues. Option A is incorrect because using SSL is a security measure, not a cause of trust issues. B is wrong as weak TLS protocols would be a concern but do not directly cause trust problems like a self-signed certificate. Option C is also incorrect because the question specifies the server was rebuilt, implying it was isolated from the malware.