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Zorluk: OrtaAzure Regions, Availability Zones, and Region Pairs

An organization is deploying a business-critical database to Azure. To meet their Service Level Agreement (SLA), the database infrastructure must be resilient against localized disasters, such as a physical datacenter power outage or cooling failure. However, due to strict regulatory compliance, all data and associated compute resources must remain within the primary geographical region. Which Azure feature should the organization implement to meet these requirements?

  1. Availability Zones within the primary regionCevap
  2. B
    Azure Region Pairs
  3. C
    Availability Zones that span across the primary region and a secondary region
  4. D
    Multiple Resource Groups located in different regions

Cevap

Availability Zones within the primary region
The correct option is the one specifying Availability Zones within the primary region. Availability Zones are physically separate datacenters within a single Azure region. Each zone has independent power, cooling, and networking. This design protects the application from a localized datacenter outage while ensuring all data and compute resources remain strictly within the geographical boundaries of the primary region to meet compliance rules.

Adım Adım Çözüm

1
Analyze the resiliency requirements.
The infrastructure must withstand a localized physical datacenter failure (power/cooling outage).
This determines that we need physical redundancy of datacenters (either Availability Zones or replication to another region).
2
Analyze the residency constraint.
All resources and data must reside entirely within the primary geographical region.
This rules out cross-region replication solutions (such as Region Pairs) and mandates a single-region high availability solution.
3
Evaluate the architectural options that satisfy both conditions.
Availability Zones provide independent power, cooling, and networking within a single region. Resource Groups are logical containers and do not provide physical redundancy. Availability Zones cannot span regions.
Only Availability Zones within the primary region satisfy both the single-region data residency constraint and the datacenter-level fault isolation requirement.

Anahtar Kavram

Azure Availability Zones support high availability and residency by providing physically isolated datacenters within a single region.
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Konular

Azure Regions, Availability Zones, and Region Pairs

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