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Difficulty: MediumAWS Global Infrastructure

An international e-learning platform is optimizing its deployment on AWS. The platform has two key requirements: first, it must store user profile data in a database designed to withstand the complete failure of an entire data center facility without data loss; second, it must minimize latency for students downloading course syllabus PDF documents from different continents. Which of the following AWS infrastructure solutions should the company utilize to meet these requirements? (Select TWO.)

  1. Replicating the database across multiple Availability Zones within the same AWS Region.Answer
  2. Storing and caching the syllabus documents in AWS Edge Locations globally.Answer
  3. C
    Setting up synchronous database replication between two distinct AWS Regions.
  4. D
    Caching the syllabus documents within multiple Availability Zones of a single AWS Region to reduce global download times.
  5. E
    Migrating the database to an AWS Outpost in each continent to handle automatic failover.

Answer

Replicating the database across multiple Availability Zones within the same AWS Region, and storing and caching the syllabus documents in AWS Edge Locations globally.
Replicating the database across multiple Availability Zones within a single AWS Region ensures high availability because Availability Zones are physically separated, isolated data centers connected by low-latency networks, allowing synchronous failover. Caching static documents at AWS Edge Locations utilizes the global Amazon CloudFront network to deliver content from locations physically closer to users, thereby minimizing latency.

Step-by-Step Solution

1
Analyze the database resilience requirement.
Identify that a database must survive the loss of an entire data center facility.
AWS Availability Zones consist of one or more discrete data centers with redundant power, networking, and connectivity, designed for high availability and synchronous replication within a Region.
2
Analyze the global document retrieval latency requirement.
Identify that files need to be retrieved with minimum latency by users distributed across different continents.
AWS Edge Locations cache content close to end users globally using Amazon CloudFront, reducing latency for static file downloads.

Key Concept

AWS Global Infrastructure components serve different design objectives: Availability Zones provide high availability and isolation within a single Region, while Edge Locations provide low-latency global content delivery.
Estimated Time:1m 30s
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AWS Global Infrastructure

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