AWS Certified Cloud Practitioner Notes

• 40 Services out of 200+ AWS services
• Cloud Computing
  • CPU : Computing
  • RAM : Memory
  • Storage : Data
  • Database : Structured Data
  • Network : Routers, Switch, DNS server
  • Traditional IT approach
    • Problems
      • Rent of Data Centre
      • Power Supply, cooling , maintenance
      • Hardware replacement
      • Scaling
      • Monitoring team
      • Disasters like earthquake, fire, power shutdown
    • Solution (Cloud)
      • On-demand delivery of computing resources
      • Pay as you go
      • provisioning of computing resources in type, size and count
      • almost instant access
      • easily accessible components using interface for DB, VMs, etc
  • Deployment Modes
    • Private Cloud
      • Rackspace
    • Public Cloud
      • Azure
      • GCP
      • AWS
    • Hybrid Cloud
  • Characteristics of Cloud Computing
    • On-demand self service
    • Broad network access
    • Multi tenancy and resourse pooling
    • Rapid elasticity and scalability
    • Measured service (Pay as you go)
  • Advantages
    • Trade Capital Expense (CAPEX) for Operational Expense (OPEX)
    • Benefit from massive economies of scale
    • Stop guessing capacity
    • Increased speed and agility
    • Stop spending money running and maintaining data centres
    • Go global in minutes
  • Problems solved