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Amazon Web Services (AWS) · Module 4 of 10

S3 storage

Store files and objects in S3.

📖 Key ideas

  1. S3 stores objects (files) in buckets.
  2. Bucket names are globally unique.
  3. Storage classes: Standard, Intelligent-Tiering, Glacier for archives.
  4. Block public access by default; use pre-signed URLs to share.
  5. Durability is 99.999999999% (11 nines).
💡 Real-life example: S3 is an endless locker room where every file gets its own locker and key.
BucketContainer for S3 objects
ObjectA file plus metadata
GlacierLow-cost archive storage
Pre-signed URLTemporary link to a private object