Microsoft Certified Azure Administrator Associate · Free Practice Question Easy
Question 11
When creating an Azure Storage account, you have a requirement to ensure that the data remains available if there's a failure at the primary region and must be most cost-restrictive.
Which redundancy option should you choose?
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A
Locally redundant storage (LRS)
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B
Zone-redundant storage (ZRS)
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C
Geo-redundant storage (GRS)
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D
Read-access geo-zone-redundant storage (RA-GZRS)
Reveal correct answer
Correct answer: C
A. Locally redundant storage (LRS) replicates your data within the same data center to protect against local hardware failures. However, it does not provide protection against a regional outage, so it does not meet the requirement of ensuring data availability in case of a failure at the primary region.
B. Zone-redundant storage (ZRS) replicates your data across multiple availability zones within the same region to protect against zone failures. While it provides higher availability than LRS, it does not offer protection against a regional outage, so it does not meet the requirement of ensuring data availability in case of a failure at the primary region.
C. Geo-redundant storage (GRS) replicates your data to a secondary region, which is typically hundreds of miles away from the primary region. In case of a failure at the primary region, data can be accessed from the secondary region, ensuring high availability. This option meets the requirement of ensuring data availability in case of a failure at the primary region while being cost-effective.
D.
Read-access geo-zone-redundant storage (RA-GZRS) replicates your data across multiple availability zones within the primary region and also replicates it to a secondary region. While it provides high availability and read access to data in the secondary region, it's not be the most cost-restrictive option compared to GRS.
Discussion
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