CompTIA Server+ SK0-005 Practice Question
An administrator will apply a vendor-supplied BIOS hotfix to a 2U virtualization host during a maintenance window. The server already has redundant power supplies on separate UPS-backed circuits, and all guest VMs will be live-migrated off the node before the flash begins. According to vendor best practices, which additional pre-upgrade task will provide the greatest protection against an extended outage if the firmware update fails?
Set the CPUs to the lowest performance state to reduce thermal load during the update.
Capture and export the current firmware image and hardware configuration to removable media.
Remove one power supply so only a single PSU is active during the flash.
Schedule the upgrade outside business hours and shut down all guest VMs on the host.