CompTIA Network+ (N10-007) — Question 59

An entire enterprise cannot access a specific website. The network technician knows the website was accessible last week. The technician can also ping the website. Which of the following is the technician MOST likely to find upon investigation?

Answer options

• A. The firewall is misconfigured.
• B. The network is being hit by a zero-day attack.
• C. The SSL certificate is untrusted.
• D. The SSL certificate has expired.

Correct answer: D

Explanation

The correct answer is D because if the SSL certificate has expired, users will be unable to access the website securely, even if the website is up and can be pinged. The other options, while possible, do not directly explain the inability to access the site when it was previously available.