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Infrastructure

  • Terminologies:
    • Region: a cluster of data centers, contains many (2-6) AZ
    • Availability zone: one or more discrete data center, isolated from disasters, connected with high bandwidth + ultra low latency networking
    • Local zone: run a few specific AWS services closer to user populations where no AWS regions exist
    • Data center
    • Edge Location: reduce latency of content delivery
    • Regional Edge Cache:
      • Between the main servers and the edge location
      • App first seek content from edge location -> if not found seek for Regional Edge Cache -> if not found seek for main server

Security and Compliance

  • AWS: responsible for the security OF the cloud
  • Customer: responsible for the security IN the cloud