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You are determining which type of Azure storage replication is appropriate for your storage account.

You must consider the features of each replication option and choose the most appropriate one: locally-redundant storage (LRS), zone-redundant storage (ZRS), geo-redundant storage (GRS), or read-access geo-redundant storage (RA-GRS).

Which replication options should you use to provide the features listed in the answer area? Choose all that apply:

• Projects against hardware failures, but not region-wide unavailability: LRS

• Projects against hardware failures, but not region-wide unavailability: GRS

• Projects against hardware failures, but not region-wide unavailability: RA-GRS

• Projects against hardware failures, but not region-wide unavailability: ZRS

• Can be used with premium performance storage accounts: LRS

• Can be used with premium performance storage accounts: GRS

• Can be used with premium performance storage accounts: RA-GRS

• Can be used with premium performance storage accounts: ZRS

• Provides default replication for Azure storage accounts: LRS

• Provides default replication for Azure storage accounts: GRS

• Provides default replication for Azure storage accounts: RA-GRS

• Provides default replication for Azure storage accounts: ZRS

LRS maintains three copies of your data within a single datacenter in a single region. This type of replication does not protect your data from failure of a single data center or region, but it protects you from hardware failures.

Premium storage supports only locally redundant storage (LRS).

RA-GRS replicates your data to another datacenter in a secondary region and provides read-only access to the data in the secondary location. This replication option is the default option for new storage accounts.

Azure Storage redundancy

Locally redundant storage (LRS): Low-cost data redundancy for Azure Storage