Microsoft Certified Azure Fundamentals · Free Practice Question Easy
Question 47
_______________ copies your data synchronously across three Azure availability zones in the primary region. For applications requiring high availability.
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A
Zone Redundant Storage (ZRS)
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B
Geo-zone-redundant storage (GZRS)
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C
Planet-redundant storage (PRS)
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D
Locally redundant storage (LRS)
Reveal correct answer
Correct answer: A
Explanation
From the Official Azure Documentation:
Data in an Azure Storage account is always replicated three times in the primary region. Azure Storage offers two options for how your data is replicated in the primary region:
Locally redundant storage (LRS) copies your data synchronously three times within a single physical location in the primary region. LRS is the least expensive replication option, but isn't recommended for applications requiring high availability or durability.
Zone-redundant storage (ZRS) copies your data synchronously across three Azure availability zones in the primary region. For applications requiring high availability, Microsoft recommends using ZRS in the primary region, and also replicating to a secondary region.
Geo-zone-redundant storage (GZRS) combines the high availability provided by redundancy across availability zones with protection from regional outages provided by geo-replication. Data in a GZRS storage account is copied across three Azure availability zones in the primary region and is also replicated to a secondary geographic region for protection from regional disasters.
Reference: https://docs.microsoft.com/en-us/azure/storage/common/storage-redundancy#geo-redundant-storage
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