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CompTIA Security+ study material · question 402 of 611

What does the three-two-one backup guidance require?

  1. Three retention tiers over two years with one restore test
  2. Three snapshots, two replicas and one archive
  3. Three copies on two media types with one held offsite
  4. Three full backups taken two days apart at one site
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Answer: C. Three copies on two media types with one held offsite

The shape survives both a device failure and the loss of a whole site.

Source: CISA #StopRansomware Guide (CISA) — CISA #StopRansomware Guide › Preparing for Ransomware

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