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Difficulty: MediumAzure Regions, Availability Zones, and Region Pairs

A company is planning to deploy its customer portal on Azure. The architecture must ensure high availability against local datacenter failures within a region, while also establishing a disaster recovery plan to protect against regional disasters. Which TWO statements accurately describe Azure regions, Availability Zones, or region pairs to support this architecture?

  1. Availability Zones are physically separate datacenters within an Azure region, each equipped with independent power, cooling, and networking.Answer
  2. Azure region pairs are located within the same geography and are typically separated by at least 300 miles to minimize the impact of regional disasters.Answer
  3. C
    An Availability Zone can span across two adjacent Azure regions to provide cross-region data replication.
  4. D
    Deploying virtual machines across different Availability Zones guarantees protection against a catastrophic failure of the entire Azure region.
  5. E
    Resources within a resource group must be deployed in the same region or Availability Zone as the resource group itself.

Answer

Availability Zones are physically separate datacenters within an Azure region, each equipped with independent power, cooling, and networking; and Azure region pairs are located within the same geography and are typically separated by at least 300 miles to minimize the impact of regional disasters.
The correct options are the statements describing Availability Zones as physically separate datacenters within a single region with independent infrastructure, and Azure region pairs as geographically isolated regions within the same geography separated by at least 300 miles.

Step-by-Step Solution

1
Evaluate the role of Availability Zones in high availability.
Confirm that Availability Zones are physically separate locations within a single Azure region, providing redundancy for localized power or cooling issues.
This verifies that the statement about Availability Zones having independent infrastructure within a region is correct, and that they do not span multiple regions.
2
Evaluate the characteristics of Azure region pairs for disaster recovery.
Confirm that Azure region pairs are positioned within the same geography, typically separated by at least 300 miles, to allow for geographic replication and failover during regional outages.
This verifies the correct definition of region pairs and their purpose in protecting against regional disasters.
3
Identify the incorrect statements by referencing Azure architecture constraints.
Determine that zones do not cross region boundaries, zones do not protect against complete regional failures, and resource groups do not force resources to inherit their location.
This eliminates the distractors and confirms the two correct selections.

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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