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RAN-AZ900-00160
Ranvier · AZ900

Exam AZ900 Topics: architecture Difficulty: hard

A healthcare platform runs in an availability-zone-enabled region. The platform must tolerate the failure of an individual availability zone and also survive a full regional outage, keeping a durable copy in a second region. Which redundancy option was designed for exactly this combination?

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  1. A. Zone-redundant storage (ZRS), which survives zone failures but keeps all copies in the primary region
  2. B. Geo-redundant storage (GRS), which survives regional outages but keeps the primary copies in a single data center
  3. C. Read-access geo-redundant storage (RA-GRS), which combines zone replication with a readable secondary region
  4. D. Geo-zone-redundant storage (GZRS), which replicates across three availability zones in the primary region and to a secondary region
Reveal answer

Correct answer: Geo-zone-redundant storage (GZRS), which replicates across three availability zones in the primary region and to a secondary region

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

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Official Answer (D): Geo-zone-redundant storage (GZRS), which replicates across three availability zones in the primary region and to a secondary region

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