The question asks which storage account type should be created for storage5 and which existing storage account should be configured as the destination for replication — while supporting the planned changes.
Step 1: Planned Change Requirement
From the case study:
“Create a storage account named storage5 and configure storage replication for the Blob service.”
This indicates that storage5 will act as a secondary (destination) account to receive geo-replicated blobs (as part of RA-GRS or GRS replication configuration).
Therefore, the new storage5 must support Blob service replication features.
Step 2: Determining Correct Account Type
According to Microsoft Azure Administrator Documentation (Microsoft Learn: “Types of storage accounts”):
Account Type
Blob Support
File Share Support
Recommended Use
Storage (general purpose v1)
✅ Basic blob
Limited
Legacy use, lacks advanced features
StorageV2 (general purpose v2)
✅ Full blob, file, queue, table support
✅
Supports replication (GRS, RA-GRS, ZRS) and access tiers
BlobStorage
✅ Blob only
❌ No file shares
Used only for block and append blobs
BlockBlobStorage
✅ Blob only (premium tier)
❌ No file shares
High-performance workloads only
Therefore, the correct type for storage5 must be StorageV2, as it supports both:
Blob service replication (GRS, RA-GRS, ZRS, LRS)
All tiers (Hot, Cool, Archive)
This meets the planned change and ensures the account supports replication for Blob service.
Step 3: Determining the Correct Destination Storage Account
The question also requires identifying which existing storage account should act as the destination for replication configuration.
In Azure, Blob service replication (for example, geo-redundant replication or object replication) requires:
Both storage accounts to be StorageV2.
Both to be in the same region pair and have object replication enabled.
Looking at the table:
Storage Account
Kind
Location
File Share
Identity-based Access
storage1
Storage (general purpose v1)
West US
sharea
Azure AD DS
storage2
StorageV2 (general purpose v2)
East US
shareb, sharec
Disabled
storage3
BlobStorage
East US 2
N/A
N/A
storage4
FileStorage
Central US
shared
Azure AD DS
Only storage2 meets all of the following conditions:
✅ Type: StorageV2
✅ Region: East US (a valid replication pair for East US 2 or secondary region)
✅ Blob Service supported
Hence, storage2 is the correct destination storage account to configure for replication from storage5.
Step 4: Supporting Microsoft Azure Documentation Extracts
From Microsoft Learn – Azure Storage account overview:
“General-purpose v2 accounts support all Azure Storage features, including blob, file, queue, and table storage. They are recommended for most scenarios.”
“Object replication requires both source and destination accounts to be of the same type (StorageV2) and in regions that are geo-paired.”
“Blob and StorageV2 accounts support replication options such as LRS, ZRS, GRS, and RA-GRS.”
