CompTIA Server+ (SK0-005) — Question 225

A server administrator recently installed a kernel update to test functionality. Upon reboot, the administrator determined the new kernel was not compatible with certain server hardware and was unable to uninstall the update. Which of the following should the administrator do to mitigate further issues with the newly installed kernel version?

Answer options

• A. Edit the bootloader configuration file and change the first kernel stanza to reflect the file location for the last known-good kernel files.
• B. Perform a complete OS reinstall on the server using the same media that was used during the initial install.
• C. Edit the bootloader configuration file and move the newest kernel update stanza to the end of the file.
• D. Set a BIOS password to prevent server technicians from making any changes to the system.

Correct answer: A

Explanation

The correct answer is A because editing the bootloader configuration to use the last known-good kernel allows the server to boot successfully without the compatibility issues of the new kernel. Option B is excessive as a complete OS reinstall is unnecessary when a simpler solution exists. Option C would not resolve the issue, as the system would still attempt to boot the incompatible kernel first. Option D does not address the problem of the kernel and merely restricts access.