CompTIA Network+ (N10-007) — Question 276

Joe, a user, is having issues when trying to access certain web pages. Upon navigating to a web page, it seems like it connects, but then presents the following message:
The security certificate presented by this website was not trusted by a trusted certificate authority.
Joe has cleared his cache and cookies, rebooted his machine, and attempted to browse to the website from a coworker's desktop, but it still presented with this error.
Which of the following is the MOST likely cause of this error?

Answer options

Correct answer: A

Explanation

The correct answer is A because if the web server is missing an intermediate certificate, it can lead to trust issues with the certificate chain, causing the browser to display a warning. Option B is incorrect as the website would not load at all if it lacked an HTTPS certificate. Option C is not the cause since TLS being disabled would not result in a connection attempt. Option D is also incorrect because if the SSL certificate had expired, users would likely receive a different error message indicating the expiration.