Getting started with AWS


I. AWS cloud overview - Regions & AZ

AWS Cloud Use Cases

  • AWS enables you to build sophisticated, scalable applications
  • Applicable to a diverse set of industries.
  • Use cases include 
    • interprise IT, backup & storage, big data analytics
    • website hosting, Mobile, social Apps.
    • Gaming
AWS global infrastructure
  • About AWS Regions:
    • AWS Regions
      • AWS has Regions all around the world.
      • Name can be us-east-1, eu-west-3, ...
      • A region is a cluster of data centers.
      • Most AWS services are region-scoped.
    • How to choose an AWS region?
      • Compliance with data governance and legal requirements: data never leave the region without your explicit permision.
      • Proximity to customers: reduce latency.
      • Available services within a region: new service or new features aren't available in every Region.
      • Pricing: varies region to region and is transparent in the service pricing page.
  • About Availability Zones:
    • Each Region has many availability zones ( usually 3, min 3, max 6). Example: 
      • ap-southeast-2a
      • ap-southeast-2b
      • ap-southeast-2c
    • Each AZ is one or more discrete data centers with redundant power, networking, and connectivity.
    • They are separate from each other, so that they are isolated from disasters
    • They are connected with hight bandwidth, ultra-low latency networking.
  • About AWS Edge Locations/ Points to Presence.
    • AWS has 400+ Points of Presence ( 400+ Edge Locations & 10+ Regional Caches) in 90+ cities across 40+ countries.
    • Content is delivered to end users with lower latency.
II. Tour of the AWS console & Services in AWS
  • AWS has a Global Services:
    • Identity and Acess Management (IAM)
    • Route 53 (DNS service)
    • CloudFront ( Content Delivery Network)
    • WAF (web application firewall)
  • Most AWS services are Region-scoped:
    • Amazon EC2 ( infrastructure as a Service)
    • Elastic Beanstalk (Platform at a service)
    • Lambda (function as a Service)
    • Rekognition (Software as a Service)
  • Region table: https://aws.amazon.com/about-aws/global-infrastructure/regional-product-services/


Reference: Content based on "Ultimate AWS Certified Developer Associate 2023 NEW DVA-C02."

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