Question

Difficulty: MediumAWS Global Infrastructure

An online gaming company wants to design its architecture on AWS. The company has two key requirements:

1. It must deploy its database across multiple isolated locations within a single geographic area to ensure high availability and automatic failover.
2. It must replicate its critical data to a separate geographic location hundreds of miles away to comply with its disaster recovery policy.

Which of the following AWS Global Infrastructure components should the company use to meet these requirements? (Select TWO.)

  1. Availability ZonesAnswer
  2. AWS RegionsAnswer
  3. C
    AWS Edge Locations
  4. D
    AWS Local Zones
  5. E
    AWS Outposts

Answer

The correct options are Availability Zones and AWS Regions. Availability Zones provide isolated locations within a single geographic region for high availability and failover, whereas AWS Regions represent separate geographic areas hundreds of miles apart, suitable for disaster recovery requirements.
Availability Zones provide high availability and automatic failover by offering isolated datacenters within a single region, while AWS Regions are geographically separated by hundreds of miles, providing the distance needed to satisfy the disaster recovery requirement.

Step-by-Step Solution

1
Analyze the first requirement: deploying a database across multiple isolated locations within a single geographic area for high availability.
Identify that Availability Zones are designed precisely for this purpose, providing isolated datacenters with low-latency connections within a single AWS Region.
Deploying across multiple Availability Zones protects against localized failures while maintaining sub-millisecond network latency.
2
Analyze the second requirement: replicating data to a separate geographic location hundreds of miles away for disaster recovery.
Identify that AWS Regions are geographically isolated areas separated by large distances, making them ideal for meeting strict disaster recovery and data residency policies.
Replicating data to another AWS Region protects against large-scale natural disasters that could impact an entire region.

Key Concept

AWS Global Infrastructure components, specifically the distinction and use cases for AWS Regions and Availability Zones.
Estimated Time:1m 30s
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