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Exam 70-412 topic 2 question 7 discussion

Actual exam question from Microsoft's 70-412
Question #: 7
Topic #: 2
[All 70-412 Questions]

You have a server named Server1 that runs Windows Server 2012 R2. Server1 has a single volume that is encrypted by using BitLocker Drive Encryption
(BitLocker).
BitLocker is configured to save encryption keys to a Trusted Platform Module (TPM). Server1 is configured to perform a daily system image backup.
The motherboard on Server1 is upgraded.
After the upgrade, Windows Server 2012 R2 on Server1 fails to start.
You need to start the operating system on Server1 as soon as possible.
What should you do?

  • A. Start Server1 from the installation media. Run startrec.exe.
  • B. Move the disk to a server that has a model of the old motherboard. Start the server from the installation media. Run bcdboot.exe.
  • C. Move the disk to a server that has a model of the old motherboard. Start the server. Run tpm.msc.
  • D. Start Server1 from the installation media. Perform a system image recovery.
Show Suggested Answer Hide Answer
Suggested Answer: C 🗳️
By moving the hard drive to server with that has a model of the old motherboard the system would be able to start. As BitLocker was configured to save encryption keys to a Trusted Platform Module (TPM), we can use tpm.msc to access the TPM settings.
Note: After you replaced the motherboard, you need to repopulate the TPM with new information regarding the encryption of the hard disk.
We use these commands to repopulate the information in the TPM (without PIN): manage-bde delete -protectors C: -type TPM manage-bde protectors add C: -tpm
Incorrect:
Not D. After the system image recovery you would still have the new motherboard installed. The problem would return.
Reference: BitLocker - New motherboard replacement
by wazmac at May 9, 2020, 6:10 a.m.

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Ben14
4 years, 8 months ago
I'll go with D, assuming they have the recovery key
upvoted 1 times
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DanStafford
4 years, 11 months ago
*Hardware HASH*
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DanStafford
4 years, 11 months ago
Disagree here Wazmac. Sys Img will have drivers for the chipset & hardware of the old motherboard, plush the hardware has would invalidate the product key of the OS due to significant changes. Sys Img is actually a .VHD file, so if you don't have a machine with a copy of the old motherboard, you could mount the .VHD as a volume in Disk Management & cherry-pick files, as it IS unencrypted. Tech should have turned off Bitlocker pre-upgrade. I believe "C" is correct.
upvoted 1 times
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wazmac
5 years, 1 month ago
Answer should be D - "When drives, folders, and files are backed up by the server, an unencrypted version is saved to the server. During full system restore, this unencrypted version is copied to the computer. After a successful full system restore, you have to reactivate BitLocker on the server." https://docs.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-storage-solutions/hh211414(v=ws.11)?redirectedfrom=MSDN
upvoted 4 times
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