You work as a database administrator at ABC.com.ABC.com makes use of SQL Server 2008 R2.
ABC.com has three database servers, named ABC-SR13, ABC-SR14, and ABC-SR15, which are
each running a different instance of SQL Server 2008. You have configured a database mirroring
session in high-safety mode between ABC-SR13 and ABC-SR14 for an important ABC.com
database. ABC-SR13 is presently configured as the principal server, while ABC-SR14 is
configured as the mirror server. ABC-SR15 is configured as the witness server.
You have been instructed to implement a patch on ABC-SR13 and ABC-SR14 that necessitates
the rebooting of the servers. You are informed that the implementation of the patch should be
done as quickly as possible, and prevent failover for the duration of the process. Furthermore, the
implementation should allow for the database to be active on the server on which the patch has
not been implemented as yet.
You start by stopping the mirroring session.
Which of the following actions should you take NEXT?

A.
You should consider implementing the patch on ABC-SR13.

B.
You should consider implementing the patch on ABC-SR14.

C.
You should consider implementing the patch on ABC-SR15.

D.
You should consider implementing the patch on a domain controller.

Explanation: