You have an Always On availability group deployed to Azure virtual machines. The availability group contains a
database named DB1 and has two nodes named SQL1 and SQL2. SQL1 is the primary replica.
You need to initiate a full backup of DB1 on SQL2.
Which statement should you run?
BACKUP DATABASE DB1 TO URL='https://mystorageaccount.blob.core.windows.net/
Correct Answer: B
Section: [none]
Explanation:
BACKUP DATABASE supports only copy-only full backups of databases, files, or filegroups when it's executed
on secondary replicas. Copy-only backups don't impact the log chain or clear the differential bitmap.
Incorrect Answers:
A: Differential backups are not supported on secondary replicas. The software displays this error because the
secondary replicas support copy-only database backups.
Reference:
https://docs.microsoft.com/en-us/sql/database-engine/availability-groups/windows/active-secondaries-backup-
on-secondary-replicas-always-on-availability-groups