FC0-U71 Security Practice Question

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

• ✗

  Two backups on tape drives, both stored in the server room

  Why it's wrong here

  Keeping both tape backups in the server room provides two copies on one medium at one location, failing the off-site requirement and leaving both vulnerable to the same fire, theft, or flood. The 3-2-1 rule requires three copies, two media types, and one off-site; tape rotation to an external facility would satisfy it.

• ✓

  Original data on a server, a backup on a NAS in the same building, and a backup in the cloud

  Why this is correct

  Keeping the original on a server, one copy on a same-building NAS, and another in the cloud satisfies 3-2-1: three total copies, two distinct storage media or systems, and one held off-site. The cloud copy provides the geographic separation that the NAS alone cannot, protecting against localised loss.

• ✗

  Original data on a laptop, a backup on a USB drive, and a backup on a second USB drive stored in a safe

  Why it's wrong here

  Two USB drives are the same media type, so the two-media requirement fails even though one copy sits in a safe. The 3-2-1 rule demands three copies across two distinct media types with one off-site; a safe in the same building is not off-site. Adding cloud or tape storage would correct this.

• ✗

  One backup on an external drive stored in the same room as the server

  Why it's wrong here

  Storing the sole backup in the server's room leaves it vulnerable to the same fire, theft or flood that destroys the source, and one copy fails the rule's two-media and one-offsite requirements. It is tempting because external drives are cheap and local restores are fast, which suits short-term operational recovery rather than disaster resilience.

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