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AWS Certified Solutions Architect study material · question 205 of 500

How does AWS Backup keep frequent backups affordable for supported resource types?

  1. It compresses every backup before storing it
  2. It deletes the oldest backup whenever a new one is taken
  3. It stores every backup in S3 Glacier Deep Archive by default
  4. It takes a full copy once and stores only changes on later runs
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Answer: D. It takes a full copy once and stores only changes on later runs

Incremental backups mean each successive run stores only what changed, so frequent protection does not cost a full copy each time.

Source: What is AWS Backup? (Amazon Web Services) — Incremental backups

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