Question

Which of the following is the first rule according to 3-2-1 Backup Rule by Peter Krogh?

(a) Retain three copies of any file—an original and two backups

(b) Files must be on two different media types

(c) One copy must be stored offsite

(d) All of the mentioned

This question was addressed to me during an interview.

The doubt is from Cloud Backup Features topic in section Cloud-Based Storage of Cloud Computing

Answer 1

Correct option is (c) One copy must be stored offsite

The best I can explain: Files must be on two different media types such as hard drives and optical media to protect against different types of hazards.