Question

Difficulty: MediumAWS Global Infrastructure

A company is launching a new online training platform to serve customers globally. The platform's architecture must support two key requirements: first, it must remain operational even if an entire physical data center facility experiences a failure; second, it must deliver cached video thumbnails and static assets to users worldwide with the lowest possible latency. Which of the following AWS global infrastructure components should be utilized to satisfy these requirements? (Select TWO.)

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

Answer

The correct components are Availability Zones and Edge Locations.
The system requirements are satisfied by combining Availability Zones for data center fault tolerance and Edge Locations for low-latency global content delivery. Availability Zones ensure that application workloads continue to run if a single physical data center fails, and Edge Locations cache static assets near global users to minimize latency.

Step-by-Step Solution

1
Analyze the requirement for resilience against a physical data center failure.
Identify that Availability Zones are designed to isolate outages, as each zone consists of one or more distinct data center facilities with independent infrastructure.
This guarantees that if one data center experiences an outage, instances running in a different Availability Zone in the same region can continue to function.
2
Analyze the requirement for delivering cached static assets globally with minimal latency.
Identify that Edge Locations are used by Amazon CloudFront to cache media and web assets closer to users worldwide.
This reduces the distance request data travels, thereby minimizing latency for the global user base.

Key Concept

AWS Global Infrastructure components are designed for specific purposes: AWS Regions provide geographic separation, Availability Zones provide high availability and fault tolerance within a Region, Edge Locations cache content close to global users, and Local Zones place compute resources close to metropolitan areas.
Estimated Time:1m 30s
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