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Answer: Read-only geo-redundant storage offers read access from the secondary region but may not meet the requirement for primary and secondary read access.
The correct answer is B: Read-only geo-redundant storage. Read-access geo-redundant storage (RA-GRS) allows higher read availability by providing read-only access to the data replicated to the secondary location. This ensures data can be read from both the primary and secondary locations, meeting the requirement for site resiliency across separate geographic locations.
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With a Microsoft Azure subscription and datacenters in Los Angeles and New York configured for geo-clustered site resiliency, recommend an Azure storage redundancy option that meets these criteria: storage on multiple nodes, across separate geographic locations, and readable from both primary and secondary locations.
A
Geo-redundant storage (GRS) replicates data to a secondary region, providing read access from both primary and secondary locations.
B
Read-only geo-redundant storage offers read access from the secondary region but may not meet the requirement for primary and secondary read access.
C
Zone-redundant storage replicates data within a region across availability zones, lacking separate geographic location storage.
D
Locally redundant storage replicates data within the same region, not meeting the requirement for separate geographic locations.