Which practice helps maintain system stability and security by using approved firmware versions?

• A. Firmware baseline compliance.
• B. Cable labeling.
• C. uname -a.
• D. KVM access.

Answer: (A)

Using approved firmware versions as part of a firmware baseline keeps systems stable and secure. When devices run firmware that has been tested and authorized for the environment, you get predictable behavior, known compatibility with hardware and software, and vendor support. This makes upgrades and patches safer because changes are controlled, auditable, and easier to rollback if issues arise. Sticking to the baseline minimizes the risk of introducing bugs or security gaps from untested firmware and simplifies ongoing maintenance and compliance.

Cable labeling helps organize physical cabling but doesn’t affect software stability or security. The command that reveals current system information shows details about the running kernel, not whether firmware is approved or up to date. Remote console access through KVM is about access methods, not enforcing firmware versions. So, the practice that best maintains stability and security is firmware baseline compliance.