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Zorluk: OrtaAzure Regions, Availability Zones, and Region Pairs

A financial institution is migrating its core transaction logging system to Azure. The system must be resilient to a power or cooling failure affecting an entire physical datacenter building within the selected Azure region. Additionally, data residency regulations strictly prohibit the replication of data to any other Azure region. Which Azure feature should the institution use to meet these resiliency and compliance requirements?

  1. A
    Region Pairs utilizing cross-region replication
  2. B
    A Resource Group configured with regional replication
  3. Availability Zones within the selected regionCevap
  4. D
    Availability Zones spanning across multiple geographical regions

Cevap

Availability Zones within the selected region
Availability Zones are unique physical locations within a single Azure region. Each zone is made up of one or more datacenters equipped with independent power, cooling, and networking. This design protects applications from datacenter-level failures (such as power or cooling issues) while ensuring that all resources and data remain strictly within the boundaries of the primary region to comply with data residency rules.

Adım Adım Çözüm

1
Analyze the resiliency requirement.
The application must withstand a power or cooling failure affecting an entire physical datacenter building.
Since a single datacenter is impacted, the solution must provide isolation at the datacenter/facility level within the region.
2
Analyze the compliance requirement.
Replicating data to any other Azure region is strictly prohibited.
This rules out disaster recovery solutions that rely on cross-region replication, such as Region Pairs.
3
Evaluate the capabilities of Availability Zones.
Availability Zones provide independent power, cooling, and networking for datacenters within a single region.
This meets both the need for datacenter-level fault isolation and the requirement to keep all data within the primary region.

Anahtar Kavram

Azure Availability Zones provide physical datacenter redundancy within a single region.
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