Question

Difficulty: EasyAWS Global Infrastructure

A cloud administrator is configuring a high-availability architecture and needs to distribute virtual servers across separate, isolated physical locations within the same geographic area to prevent concurrent failures. What are these isolated physical locations called?

  1. A
    AWS Regions
  2. B
    Edge Locations
  3. C
    Local Zones
  4. Availability ZonesAnswer

Answer

Availability Zones
Availability Zones are physical locations within an AWS Region, each consisting of one or more discrete data centers with redundant power, networking, and connectivity. Distributing resources across multiple Availability Zones protects applications from single data center failures, achieving high availability.

Step-by-Step Solution

1
Identify the requirement of distributing virtual servers across separate, isolated physical locations within the same geographic area to ensure high availability.
The administrator needs to locate the AWS physical infrastructure component designed to isolate failures within a single region.
Understanding the architecture requirement helps select the appropriate level of the AWS Global Infrastructure hierarchy.
2
Evaluate the options based on their function in the AWS Global Infrastructure.
Availability Zones consist of one or more discrete data centers with redundant power, networking, and connectivity within an AWS Region. AWS Regions are the larger geographic areas containing these zones. Edge Locations cache content, and Local Zones extend services to specific cities.
Comparing the options ensures the selected component matches the definition of isolated physical locations within a geographic area.

Key Concept

Availability Zones provide physical isolation and redundancy within a single AWS Region.
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