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PT EN
RAN-AZ900-00157
Ranvier · AZ900

Exam AZ900 Topics: architecture Difficulty: easy

A small design studio is creating its first storage account and wants the lowest-cost redundancy option. The founders accept that a disaster affecting an entire data center could cause data loss, as long as the data is still replicated three times against routine hardware failures. Which option should they choose?

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  1. A. Locally redundant storage (LRS), which replicates data three times within a single data center
  2. B. Zone-redundant storage (ZRS), which replicates data synchronously across three availability zones in the primary region
  3. C. Geo-redundant storage (GRS), which replicates data three times and also copies it asynchronously to a secondary region
  4. D. Geo-zone-redundant storage (GZRS), which combines availability zone replication with a secondary region
Reveal answer

Correct answer: Locally redundant storage (LRS), which replicates data three times within a single data center

Reference: https://learn.microsoft.com/en-us/training/modules/describe-azure-storage-services/3-redundancy/

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Official Answer (A): Locally redundant storage (LRS), which replicates data three times within a single data center

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