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CompTIA Security+ 3.4 CompTIA A+ Core 2 4.3
TechKnowSurge Catalog Interactives Backup Type Selector
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Backup Type Selector

Classify backup strategy descriptions as Full, Differential, Incremental, or Snapshot.

⚑ Complete this interactive to capture a CTF flag worth 5 points.

About this interactive

What you're doing: sorting twelve descriptions of backup jobs into the four strategies they describe — Full, Differential, Incremental, or Snapshot. Why it matters: the four are not a ranking, they are a trade-off between how much space a backup takes and how long a restore takes, and that trade-off is the whole reason a real schedule mixes them. A full backup is one set to restore from and the most expensive to take; a differential is bigger every day but never needs more than two sets; an incremental is the smallest possible nightly job and the slowest possible recovery, because every night since the last full has to be replayed in order. A snapshot is the odd one out — it is a point-in-time copy of a volume or a VM's state, taken instantly at the storage layer for rollback, not a scheduled copy shipped somewhere else. How to use it: ignore the schedule and ask what a single run of that job actually captures, then check the answer against the restore. If a restore needs one set it is full; two, differential; the whole chain, incremental; and if the language is about freezing state and rolling back rather than about restoring files, it is a snapshot.

What you'll learn

Aligned to

CompTIA Security+
3.4 Explain the importance of resilience and recovery in security architecture.
CompTIA A+ Core 2
4.3 Given a scenario, implement workstation backup and recovery methods.

Key terms

Backup
A copy of data captured at a specific point in time and stored separately from the source system, used to restore information in the event of data loss, corruption, or a security incident such as ransomware.
Full Backup
A complete copy of all selected data, serving as the baseline backup type from which other backup strategies operate.
Differential Backup
A backup type that copies only the data that has changed since the last full backup.
Incremental Backup
A backup type that copies only the data that has changed since the last backup of any type, minimizing storage use but requiring multiple restore steps.
Snapshot
A point-in-time copy of a storage volume or virtual machine state that captures the original data and tracks subsequent changes as a delta, enabling rapid backup and recovery without interrupting running workloads.
Recovery Point Objective
RPO
The maximum acceptable amount of data loss measured in time, defining how far back data must be recoverable.
Recovery Time Objective
RTO
The maximum acceptable time to restore a system or service after a disruption.
Backup Window
The scheduled period of time during which a backup operation is performed, which must be managed to minimize disruption to systems and users.

Topics

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