Microsoft Azure Fundamentals AZ-900
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Your company, with datacenters in Los Angeles and New York, has a Microsoft Azure subscription and is configuring these datacenters as geo-clustered sites for enhanced site resiliency. To meet specific data storage requirements, you need to recommend an appropriate Azure storage redundancy option. The requirements include: storing data on multiple nodes, ensuring data is stored in separate geographic locations, and allowing data to be read from both the primary and secondary locations. Which Azure storage redundancy option aligns best with these requirements?
Your company, with datacenters in Los Angeles and New York, has a Microsoft Azure subscription and is configuring these datacenters as geo-clustered sites for enhanced site resiliency. To meet specific data storage requirements, you need to recommend an appropriate Azure storage redundancy option. The requirements include: storing data on multiple nodes, ensuring data is stored in separate geographic locations, and allowing data to be read from both the primary and secondary locations. Which Azure storage redundancy option aligns best with these requirements?
Explanation:
The correct answer is B: Read-only geo-redundant storage (RA-GRS). This option, correctly termed as read-access geo-redundant storage (RA-GRS), replicates your data to another physical location in a secondary region to protect against regional outages. Unlike Geo-redundant storage (GRS), which only allows data to be read from the secondary location if a failover is initiated, RA-GRS provides read-only access to the data in the secondary region at all times, even when the primary region is still operational. This meets all the specified requirements: data is stored on multiple nodes, across separate geographic locations, and can be read from both primary and secondary locations simultaneously. Hence, RA-GRS is the best fit.