HOTSPOT
Your network contains an Active Directory domain named contoso.com. The domain contains a
server named Server1 that runs Windows Server 2012 R2.
Server1 has the following BitLocker Drive Encryption (BitLocker) settings:
You need to ensure that drive D will unlock automatically when Server1 restarts. What command
should you run? To answer, select the appropriate options in the answer area.
Answer: 
Answer is correct.
Add-BitLockerKeyProtector = adds a key protector for a bitlockered volume
-Mountpoint D: = specifies drive D
-ADAccountOrGroup contoso\server1 = Specifies the account to use as the key protector for the volume encryption key
-Service = Indicates that the system account for the server UNLOCKS the encrypted volume.
More info: https://technet.microsoft.com/en-us/library/jj649835(v=wps.630).aspx
Correct indeed:
enable-bitlocker is just fore a volume that does not host a operating system.
here it is given that server 1 (runnen W2k12) host a bitlockervolume
I don’t understand your answers.
Que question is: “You need to ensure that drive D will unlock automatically when Server1 restarts.”
Add-BitLockerKeyProtector: “adds a protector for the volume key of the volume protected with BitLocker Drive Encryption”
https://technet.microsoft.com/es-es/library/jj649835(v=wps.630).aspx
Wouldn’t be better Enable-BitlockerAutoUnlock?: “enables automatic unlocking for a volume protected by BitLocker Disk Encryption” Is not that what the questions says?
https://technet.microsoft.com/en-us/library/jj649838%28v=wps.630%29.aspx?f=255&MSPPError=-2147217396
Anyone can tell me if i am wrong?
I look at the question and said the same thing, but look at both articles you posted again.
Enable-BitLockerAutoUnlock does not offer the parameters “-ADAccountOrGroup” nor -Service.
In the first article you posted, it says “When a user accesses a drive protected by BitLocker, such as when starting a computer, BitLocker requests the relevant key protector. For example, the user can enter a PIN or provide a USB drive that contains a key. BitLocker retrieves the encryption key and uses it to read data from the drive.”
Hope this clears it up.