CompTIA CASP+ (CAS-004) — Question 349

A help desk analyst suddenly begins receiving numerous calls from remote employees who state they are unable to connect to the VPN. The employees indicate the VPN client software is warning about an expired certificate. The help desk analyst determines the VPN certificate is valid. Which of the following is the most likely cause of the issue?

Answer options

• A. The certificate has been compromised and needs to be replaced.
• B. The VPN concentrator is running an old version of code and needs to be upgraded.
• C. The NTP settings on the VPN concentrator are incorrectly configured.
• D. The end users are using outdated VPN client software.

Correct answer: C

Explanation

The most likely cause of the issue is that the NTP settings on the VPN concentrator are incorrectly configured, which can lead to time discrepancies causing valid certificates to appear expired. The other options do not align with the confirmed validity of the VPN certificate or the nature of the issue reported by the users.