You administer all the deployments of Microsoft SQL Server 2012 in your company.
You need to ensure that an OLTP database that uses a storage area network (SAN) remains available
if any of the servers fail.
You also need to minimize the amount of storage used by the database.
Which configuration should you use?
A.
• Two servers configured in different data centers
• SQL Server Availability Group configured in Synchronous-Commit Availability Mode
• One server configured as an Active Secondary
B.
• SQL Server that includes an application database configured to perform transactional replication
C.
• Two servers configured in the same data center
• SQL Server Availability Group configured in Asynchronous-Commit Availability Mode
• One server configured as an Active Secondary
D.
• Two servers configured in different data centers
• SQL Server Availability Group configured in Asynchronous-Commit Availability Mode
E.
• Two servers configured in the same data center
• A primary server configured to perform log-shipping every 10 minutes
• A backup server configured as a warm standby
F.
• Two servers configured on the same subnet
• SQL Server Availability Group configured in Synchronous-Commit Availability Mode
G.
• SQL Server that includes an application database configured to perform snapshot replication
H.
• Two servers configured in a Windows Failover Cluster in the same data center
• SQL Server configured as a clustered instance
Only (F) and (H) would allow two servers in the same data centre (which is assumed if they are connected to the same SAN) to have automatic failover between them. Of those, (H) satisfies the requirement to minimise storage used for the database.
H
http://www.aiotestking.com/microsoft/which-configuration-should-you-use-20/