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Intro

AWS services to avoid​

  1. Cognito
  2. CloudFormation
  3. ElastiCache
  4. Kinesis
  5. Lambda

5 AWS Services You Should Avoid!. Get ready for some personal and… | by David Lin | TeamZeroLabs | Medium

14 Essential AWS Interview Questions and Answers [2024] | Toptal

AWS Solutions Library

Regions, Availability Zones, and Local Zones​

Each Region is a separate geographic area. Each Region has multiple, isolated locations known as Availability Zones. Local Zones provide you the ability to place resources, such as compute and storage, in multiple locations closer to your end users. Resources aren't replicated across Regions unless you specifically choose to do so.

Each Region is completely independent. Each Availability Zone is isolated, but the Availability Zones in a Region are connected through low-latency links. A Local Zone is an AWS infrastructure deployment that places select services closer to your end users. A Local Zone is an extension of a Region that is in a different location from your Region. It provides a high-bandwidth backbone to the AWS infrastructure and is ideal for latency-sensitive applications, for example machine learning.

All AWS Availability Zones (AZs) have more than one data center, as an AZ is defined as one or more discrete data centers with their own independent power, networking, and connectivity. AWS customers can leverage this infrastructure for high-availability by designing applications to run in multiple AZs within the same region for fault tolerance.

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https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/using-regions-availability-zones.html

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Resources​

https://dev.to/helenanders26/aws-series-aws-from-a-to-z-45b1

https://www.toptal.com/aws/interview-questions

https://www.youtube.com/watch?v=3hLmDS179YE

Whitepapers​

AWS ReInvent 2024 Highlights​

Others​