AWS, CloudPrep notes – AWS Certified Associate Architect

Prep notes – AWS Certified Associate Architect

S3 service

  • S3 – Simple Storage Service
  • S3 Durability – 11 9s
  • Object size 0 – 5TB. Use multipart for over 100mb object
  • Availability – standard(99.99%), IA(99.9%), S3 One Zone-IA(99.5%)
  • S3 One Zone-IA for easily reproducible data
  • Glacier, Glacier deep storage. Retrieval time mins to hours
  • Setup MFA to protect against accidental delete
  • Read/Write consistency for new objects, eventual consistency for overwrites puts and deletes
  • Life cycle rules to move from one storage type to another. Understand which one to use for a given use case
  • Versioning – can be active or suspended not deleted
  • Delete marker – Deleted object has delete marker, to permanently delete the object, delete the marker
  • Cross Region Replication – enable versioning on in both regions
  • CRR – Existing objects are not replicated
  • CRR – Delete and delete marker are not replicated.
  • CRR – Good for backup
  • CRR – Similarly we can do SRR (Same Region Replication)
  • Accelerated Transfer — Write to edge location and then use Amazon network to write to S3
  • Encryption
    • In transit using https
    • At rest SSE, SSE-KMS, SSE-Custom or client side
  • Snowball – to transfer 50-80 TB
  • Snowball edge – to transfer 100TB, can also run compute (e.g. lambda)
  • Snowmobile – to transfer petabyte of data
  • S3 query in place – Query S3 objects using Athena
  • S3 SELECT – Query part of object
  • S3 Security – Setup bucket policy and access list
  • S3 can send event notification to SQS, SNS and Lambda

Home | IAM | S3 | CloudFront | SQS | EC2 | RDS | Route53

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