A new server has a battery-backed RAID controller built onto the motherboard. Which of the following will occur if the RAID controller fails?

Array configuration is stored in battery-backed volatile memory on the controller, so the BBU prevents this information from being lost during a failure - it is not simply discarded.

The BBU on a battery-backed RAID controller supplies residual power specifically to preserve write-cache contents and array configuration stored in volatile memory, preventing data corruption or configuration loss during a controller failure. This is the defining purpose of the battery component - it ensures a safe flush of cached data to non-volatile storage before power is fully lost.

Data on the physical drives is not destroyed by a controller failure; the drives remain intact and can typically be recovered by replacing the failed controller with an identical unit.

A degraded state describes a redundant array operating with a failed drive, not a controller failure; a controller failure halts array operation entirely rather than causing graceful degradation.