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  • AWS and Cloud Computing
    • What is it (keywords)
      • on-demand
      • IT resources
      • Accesible on-line
      • pay as you go
    • Benefits
      • Low cost
      • Elastic
      • Flexible
      • Secure
    • AWS vs On-Premise
      • No capital expenses / initial purchases:
        • install and config
        • physical space, cooling, power
        • cabling, networking, racks, servers, storage
        • labor certification, …
      • Click to order resources
      • Immediate access - fast on-demand provisioning
      • Continually lower prices
      • Optimizing costs with pricing options
      • Can focus on app than on DevOps
      • Flexible resource capacity
      • Global reach on-demand
  • AWS Infrastructure
    • Regions - geographic area with two or more AZs, they are completely separated from each other and resources are not automatically replicated between them; communication between them is done over public Internet so additional costs can appear and need to apply some secured channel
    • Availibility Zones - is a collection of data centers within each region, isolated from other AZs; connected by low latency links
      • isolationg AZs protects each other from failures in other AZs
      • low latency links make it possible for another AZs to handle requests of another AZs
    • Edge Locations - Amazon CloudFront
      • Hosts CDN
        • web sites
        • dynamic / static
        • streaming
      • requests are routed to the nearest edge location