Crucial Exams

CompTIA Server+ SK0-005 Practice Question

A rack-mounted Windows Server 2019 host boots from a mirrored pair of 600 GB SAS drives on a hardware RAID controller. After the host is shut down so a second SAS tape drive can be attached to an unused internal HBA port, the system powers back on and POST completes with no errors. Instead of loading Windows, the console displays the message "Operating System not found". From the RAID BIOS utility the virtual disk that contains the OS is reported as Optimal, and both physical drives show healthy SMART data. No other configuration changes were made.

Which of the following is the MOST likely reason the server will not start the operating system?

  • The firmware boot order was automatically changed so the system now tries to boot from the newly attached tape drive controller.

  • The tape drive negotiates a different SAS link speed, preventing the RAID controller from initializing its disks.

  • The RAID controller disabled write-back caching because its battery module is depleted.

  • The master boot record on the mirrored system partition became corrupted and must be rebuilt.

CompTIA Server+ SK0-005
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