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Difficulty: MediumAzure Regions, Availability Zones, and Region Pairs

A financial institution is planning to deploy an audit application in Azure. The application has the following architectural and regulatory requirements:

- It must protect virtual machines against localized datacenter failures (such as power, cooling, or networking issues) within the primary region.
- It must replicate backup data to a secondary region located at least 300300 miles away to prepare for regional disaster recovery.
- It must ensure all customer data remains strictly within the same country to comply with sovereignty regulations.

Which two choices represent correct Azure design strategies or characteristics to meet these requirements?

  1. Deploy the application virtual machines across multiple Availability Zones within the primary region.Answer
  2. Replicate the data to the primary region's designated region pair, ensuring it resides within the same geopolitical boundary.Answer
  3. C
    Deploy the application components across Availability Zones that span multiple Azure regions to ensure regional failover.
  4. D
    Deploy the virtual machines in separate Resource Groups to automatically inherit regional disaster recovery settings.
  5. E
    Rely on a single Availability Zone for both primary hosting and disaster recovery backups to recover from a complete regional outage.

Answer

To satisfy the requirements, the financial institution should deploy the virtual machines across multiple Availability Zones in the primary region, and replicate the data to the primary region's designated region pair, ensuring it resides within the same geopolitical boundary.
Deploying the application virtual machines across multiple Availability Zones ensures protection against localized datacenter failures (power, cooling, network) within the primary region. Utilizing region pairs ensures disaster recovery replication at a distance of at least 300300 miles while maintaining data residency because Azure region pairs generally reside within the same geopolitical boundaries.

Step-by-Step Solution

1
Address the local high availability requirement.
Deploying the VMs across multiple Availability Zones provides redundancy against power, cooling, or network outages because each zone is an isolated datacenter within the region.
Availability Zones are specifically designed to provide high availability within a single region.
2
Address the disaster recovery and data residency requirements.
Using the designated Azure region pair provides replication over a distance of at least 300300 miles. Since region pairs are kept within the same national/geopolitical boundary (with the exception of Brazil South), this also keeps data within the host country.
Region pairs are paired by Microsoft to offer disaster recovery capabilities while respecting data sovereignty constraints.

Key Concept

Azure Regions, Availability Zones, and Region Pairs
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Topics

Azure Regions, Availability Zones, and Region Pairs

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