CompTIA Network+ N10-006 Q474

A technician is installing new PCs on the network. After installing the latest patches and OS updates, a user is receiving an “unsupported version” error message when accessing a web-based application.
Which of the following should the technician perform to fix this issue?

A. Upgrade SNMP to SNMPv3
B. Switch from HTTP to HTTPS
C. Roll back the web browser to a previous version
D. Roll back the OS to a previous version

Correct Answer: D