HOTSPOT
Your network contains an Active Directory domain named contoso.com. The domain contains the
two servers.
The servers are configured as shown in the following table.
You investigate a report about the potential compromise of a private key for a certificate issued to
Server2.
You need to revoke the certificate issued to Server2. The solution must ensure that the revocation
can be reverted.
Which reason code should you select?
To answer, select the appropriate reason code in the answer area.
Answer: 
Explanation:
If you specify “Certificate Hold” as the reason for revoking the certificate, it typically means that you
may want to unrevoke the certificate at a future time. Only certificates that have been revoked with
the reason of “Certificate Hold” can be unrevoked.Manage Certificate Revocation
http://technet.microsoft.com/en-us/library/cc753724(v=WS.10).aspx