CompTIA Security+ Question F-10

Company employees are required to have workstation client certificates to access a bank website. These certificates were backed up as a precautionary step before the new computer upgrade. After the upgrade and restoration, users state they can access the bank’s website, but not login. Which is the following is MOST likely the issue?

A. The IP addresses of the clients have change
B. The client certificate passwords have expired on the server
C. The certificates have not been installed on the workstations
D. The certificates have been installed on the CA

Answer: C

The computer certificates must be installed on the upgraded client computers.