S3 Standard
- What it is
- The default Amazon S3 storage class — general-purpose storage for frequently accessed data.
- Numbers
- 11 nines durability, 99.99% availability, data stored across at least three Availability Zones.
- No retrieval fee, no minimum object size, no minimum storage duration.
- When to use it
- Websites and content distribution, mobile and gaming apps, big data analytics, anything read often or with unknown-but-hot access.
- The right answer whenever the question says “frequently accessed” and says nothing about cost pressure.
- The trade-off
- Highest per-GB storage price of the S3 classes; you pay for instant availability you may not need.
- Cool the data with lifecycle policies or hand the decision to S3 Intelligent-Tiering.
- Exam signal
- “Frequently accessed”, “millisecond access”, “no retrieval charges” → Standard.