Real-world scenario
A media company stores 50 TB of video. Recent uploads are hot; footage older than 90 days is rarely touched. A lifecycle policy quietly moves cold objects to Glacier and cuts the storage bill ~70% — with zero code changes.
By the end you can:
Follow the request/data flow through the architecture.
Work through each concept and mark it understood. This unlocks the knowledge check.
Object storage with 11 nines of durability and effectively unlimited capacity.
Why it matters
The backbone of data lakes, static sites, backups and pipelines.
When to use it
Use for objects/blobs. Use EBS for block (a disk for one instance) and EFS for shared file systems.
Example
aws s3 cp ./report.pdf s3://my-bucket/reports/ \ --storage-class INTELLIGENT_TIERING --sse aws:kms
Gotcha (exam trap)
S3 is private by default — public exposure is almost always a misconfigured policy or disabled Block Public Access, not an S3 flaw.
Finish the walkthrough above to unlock the check.
Bleepx skills build on each other. Continue your learning path across Query, Lab, and Cloud.