ExpertHard1 markMultiple Choice
AZ-305 · Question 33 · Domain 3.1: Backup and Disaster Recovery
You are designing a backup architecture for Azure Virtual Machines located in the 'West Europe' region.
The business requires that backups are stored in a geographically distant region to protect against a complete regional disaster. Furthermore, the IT team must be able to restore the VMs in the secondary region at any time for disaster recovery testing, without waiting for Microsoft to declare a regional outage.
Which feature should you enable on the Recovery Services vault?
You are designing a backup architecture for Azure Virtual Machines located in the 'West Europe' region.
The business requires that backups are stored in a geographically distant region to protect against a complete regional disaster. Furthermore, the IT team must be able to restore the VMs in the secondary region at any time for disaster recovery testing, without waiting for Microsoft to declare a regional outage.
Which feature should you enable on the Recovery Services vault?
Answer options:
A.
Geo-redundant storage (GRS)
B.
Cross Region Restore (CRR)
C.
Zone-redundant storage (ZRS)
D.
Azure Site Recovery (ASR)
How to approach this question
Look for the backup feature that allows on-demand restores from a secondary region.
Full Answer
B.Cross Region Restore (CRR)✓ Correct
By default, a Recovery Services vault configured with Geo-redundant storage (GRS) replicates backup data to a paired region. However, the secondary region data is locked; you can only restore from it if Microsoft declares a primary region outage. To meet the requirement of restoring in the secondary region at any time (for DR testing or self-declared disasters), you must enable the Cross Region Restore (CRR) feature on the vault.
Common mistakes
Choosing GRS. GRS is the underlying storage mechanism, but CRR is the specific feature that must be enabled to allow on-demand restores.
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