Disaster recovery · Question 8 of 12
What does the 3-2-1 rule for backups say?
1 answer is correct. Easy
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Answer
- B Three copies, on two media types, one of them off-site
Explanation
The 3-2-1 rule recommends three copies of the data (the original and two backups), on at least two different media, with one copy at another location. This survives hardware defects as well as fire or theft. Against ransomware, an immutable or offline copy is often added.