Hotspot Question You plan to create an Azure Storage account in the Azure region of East US 2. You need to create a storage account that meets the following requirements: - Replicates synchronously…

Question

Exhibit

Answer Area

• Replication:
  Geo-redundant storage (GRS)Locally-redundant storage (LRS)Read-access geo-redundant storage (RA GRS)Zone-redundant storage (ZRS)
• Account type:
  Blob storageStorage (general purpose v1)StorageV2 (general purpose v2)

Explanation

To meet synchronous replication and single data center availability within a region, select Zone-redundant storage (ZRS) for replication and StorageV2 (general purpose v2) as the account type.

Approach. The user must select 'Zone-redundant storage (ZRS)' from the 'Replication' dropdown menu and 'StorageV2 (general purpose v2)' from the 'Account type' dropdown menu.

Common mistakes.

• common_mistake. 1. Selecting Locally-redundant storage (LRS) for replication: LRS replicates data synchronously within a single data center. It provides protection against individual disk or node failures but does not protect against a complete data center failure, which is a requirement.

1. Selecting Geo-redundant storage (GRS) or Read-access geo-redundant storage (RA GRS) for replication: GRS and RA-GRS replicate data asynchronously to a secondary Azure region. While they offer regional disaster recovery, they do not provide synchronous replication across data centers within the primary region to specifically address a single data center failure in that region while maintaining synchronous behavior. The replication to the secondary region is asynchronous.
2. Selecting 'Blob storage' for Account type: 'Blob storage' accounts are specialized for blobs only and are not general-purpose. They may not support all required features or be the most cost-effective for broader use cases.
3. Selecting 'Storage (general purpose v1)' for Account type: General-purpose v1 storage accounts are an older generation and do not support Zone-redundant storage (ZRS), making them incompatible with the replication requirement.

Concept tested. Azure Storage account types (General-purpose v1, v2, Blob storage), Azure Storage replication strategies (Locally-redundant storage - LRS, Zone-redundant storage - ZRS, Geo-redundant storage - GRS, Read-access geo-redundant storage - RA GRS), understanding the differences between synchronous and asynchronous replication, and high availability/redundancy concepts related to Azure regions and availability zones.

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