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Microsoft Azure Fundamentals AZ-900 Practice Question

Your company requires that your Azure storage data remains accessible even if an entire Azure region becomes unavailable.

Which Azure storage redundancy option should you choose to meet this requirement?

Read-access Geo-Redundant Storage (RA-GRS)
Zone-Redundant Storage (ZRS)
Locally Redundant Storage (LRS)
Geo-Redundant Storage (GRS)

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Answer Description

Read-access Geo-Redundant Storage (RA-GRS) replicates your data to a secondary region and allows you to read from the secondary location if the primary region becomes unavailable. This ensures your data remains accessible during a regional outage.

Geo-Redundant Storage (GRS) also replicates data to a secondary region but does not provide read access to the secondary unless Microsoft initiates a failover, so your data would not be accessible during an outage.

Zone-Redundant Storage (ZRS) replicates data across availability zones within the same region and does not protect against regional outages.

Locally Redundant Storage (LRS) keeps multiple copies of your data within a single data center, offering no protection against data center or regional failures.

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What is the difference between Read-access Geo-Redundant Storage (RA-GRS) and Geo-Redundant Storage (GRS)?

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How does Zone-Redundant Storage (ZRS) ensure data availability?

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What are the limitations of Locally Redundant Storage (LRS)?

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Microsoft Azure Fundamentals AZ-900

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