You create an availability group named HaContoso that has replicas named Server01/HA,
Server02/HA, and Server03/HA,
Currently, Server01l/HA is the primary replicA
You need to ensure that the following requirements are met:
• Backup operations occur on Server02/HA
• If Server02/HA is unavailable, backup operations occur on Server03/HA
• Backup operations do not occur on Server01/HA
How should you configure HaContoso?
A.
• Set the backup preference of HaContoso to Prefer Secondary.
• Set the backup priority of Server02/HA to 20.
• Set the backup priority of Server03/HA to 10.
B.
• Set the backup preference of HaContoso to Secondary only.
• Set the backup priority of Server02/HA to 20.
• Set the backup priority of Server03/HA to 10.
C.
• Set the backup preference of HaContoso to Secondary only.
• Set the backup priority of Server02/HA to 10.
• Set the backup priority of Server03/HA to 20.
D.
• Set the exclude replica of Server01/HA to true.
• Set the backup priority of Server02/HA to 10.
• Set the backup priority of Server03/HA to 20.
Explanation:
http://msdn.microsoft.com/en-us/library/ff877884.aspx
The questions specifies never to back up the primary, so the backup preference needs to be ‘Secondary Only’ – then the higher the priority number, the more preferred that server is for backups (see https://msdn.microsoft.com/en-us/library/hh710053.aspx#SSMSProcedure for explanation of priority). So answer is (B).