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Question 62 - DP-203 discussion

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You have an Azure Data Lake Storage Gen2 container that contains 100 TB of data. You need to ensure that the data in the container is available for read workloads in a secondary region if an outage occurs in the primary region. The solution must minimize costs. Which type of data redundancy should you use?

A.
geo-redundant storage (GRS)
Answers
A.
geo-redundant storage (GRS)
B.
read-access geo-redundant storage (RA-GRS)
Answers
B.
read-access geo-redundant storage (RA-GRS)
C.
zone-redundant storage (ZRS)
Answers
C.
zone-redundant storage (ZRS)
D.
locally-redundant storage (LRS)
Answers
D.
locally-redundant storage (LRS)
Suggested answer: B

Explanation:

Geo-redundant storage (with GRS or GZRS) replicates your data to another physical location in the secondary region to protect against regional outages. However, that data is available to be read only if the customer or Microsoft initiates a failover from the primary to secondary region. When you enable read access to the secondary region, your data is available to be read at all times, including in a situation where the primary region becomes unavailable. Incorrect Answers:

A: While Geo-redundant storage (GRS) is cheaper than Read-Access Geo-Redundant Storage (RA-GRS), GRS does NOT initiate automatic failover. C, D: Locally redundant storage (LRS) and Zone-redundant storage (ZRS) provides redundancy within a single region.

Reference: https://docs.microsoft.com/en-us/azure/storage/common/storage-redundancy

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asked 02/10/2024
Natalia Novikova
40 questions
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