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Alec Dutcher
Alec Dutcher

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Section 3.2 - AWS Certified Cloud Practitioner Study Guide

This series is intended to be a personal study guide. Information may not be comprehensive or accurate. I am sharing it in case others find it useful. Please feel free to comment if any information is inaccurate.

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3.2 Define the AWS global infrastructure

AWS global infrastructure

Describe the relationships among Regions, Availability Zones, and Edge Locations

  • Regions - physical locations in the world where data centers are clustered; contain multiple AZs
  • Availability Zones - one or more discrete data centers with redundant systems
  • Edge Locations - site that CloudFront uses to cache copies of content for faster delivery to end users

Describe how to achieve high availability through the use of multiple Availability Zones

  • Recall that high availability is achieved by using multiple AZs
    • Using multiple AZs means if one AZ goes offline the data is still available
  • Recognize that AZs do not share single points of failure
    • Different AZs do not use the same physical resources and will not fail together

Describe when to consider the use of multiple AWS Regions

  • Disaster recovery/business continuity - data and services withstand large-scale disaster events
  • Low latency for end-users - deploying in regions close to user bases
  • Data sovereignty - different regions may have different regulations regarding data

Describe at a high level the benefits of Edge Locations

  • Amazon CloudFront
    • Reduce latency by deploying through globally dispersed Points of Presence
  • AWS Global Accelerator
    • Improve network traffic performance using AWS global infrastructure
    • Get two global static public IPs to serve as fixed entry point to application

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