220-1201 Practice Question: During a BIOS update on a workstation, the power…

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

• ✗

  Replace the motherboard

  Why it's wrong here

  Replacing the entire motherboard is an extreme and costly measure that should only be considered as a last resort when all other BIOS recovery options have demonstrably failed. If the motherboard features a dual BIOS system, as implied by the correct solution, a simple firmware corruption does not necessitate a complete hardware replacement. This approach is inefficient and unnecessary when more direct and less expensive recovery methods are available.

• ✗

  Use a USB flash drive with the correct BIOS file and press a recovery key combination

  Why it's wrong here

  While some motherboards support BIOS recovery from a USB drive using specific key combinations or dedicated ports (e.g., Q-Flash Plus, BIOS Flashback), this method often relies on the primary, potentially corrupted, BIOS still being able to initiate a recovery routine. If the primary BIOS is severely corrupted and cannot even begin this process, or if the board lacks this specific feature, this approach would be ineffective compared to directly switching to a known-good backup chip.

• ✗

  Remove the CMOS battery for 30 minutes

  Why it's wrong here

  Removing the CMOS battery for an extended period only clears the stored BIOS/UEFI settings, such as boot order, date/time, and overclocking profiles, by draining the volatile memory. It does not, however, restore or repair the underlying BIOS firmware itself if it has become corrupted during an update. Firmware corruption requires reflashing the chip with a valid image or switching to a functional backup, not merely resetting configuration parameters.

• ✓

  Switch the motherboard's dual BIOS jumper to the backup position

  Why this is correct

  Many modern motherboards incorporate a dual BIOS feature, which includes a primary BIOS chip and a secondary, identical backup chip containing a stable firmware version. Switching the motherboard's dual BIOS jumper physically activates the backup chip, allowing the system to boot successfully even if the primary BIOS is corrupted. Once booted from the functional backup, the system can then be used to reflash and restore the corrupted primary BIOS chip, resolving the issue without hardware replacement.

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