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Difficulty: EasyAzure Regions, Availability Zones, and Region Pairs

An administrator plans to deploy a new web application in Azure and wants to protect it against localized datacenter failures by using Availability Zones.

Which of the following statements about Azure Availability Zones are correct? (Select TWO.)

  1. Availability zones are unique physical locations within an Azure region.Answer
  2. Each availability zone consists of one or more datacenters equipped with independent power, cooling, and networking.Answer
  3. C
    Availability zones span across multiple different geographical Azure regions to ensure high availability.
  4. D
    Availability zones are primarily designed to provide disaster recovery in the event of a complete regional outage.

Answer

Azure Availability Zones are unique physical locations within an Azure region, and each availability zone consists of one or more datacenters equipped with independent power, cooling, and networking.
Azure Availability Zones are unique physical locations within a single Azure region. Each zone is made up of one or more datacenters that are equipped with independent power, cooling, and networking to ensure isolation from failures in other zones.

Step-by-Step Solution

1
Analyze the definition and scope of Azure Availability Zones.
Identify that Availability Zones are physical boundaries located within a single Azure region, consisting of one or more datacenters with isolated power, cooling, and networking.
This helps determine which statements correctly describe the structure and regional boundaries of Availability Zones.
2
Differentiate between high availability within a region and regional disaster recovery.
Confirm that Availability Zones protect against datacenter-level outages (high availability) within a single region, whereas regional outages require replication to secondary regions (disaster recovery).
This eliminates the misconception that Availability Zones are used for region-wide disaster recovery or span across multiple regions.

Key Concept

Azure Availability Zones structure and regional boundaries
Estimated Time:45s
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Topics

Azure Regions, Availability Zones, and Region Pairs

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