A+ full, incremental and differential backups
A full backup copies the selected dataset. An incremental backup captures changes since the preceding backup, while a differential backup captures changes since the most recent full backup. Think about the restore sequence as well as the backup duration. A short backup job can create a longer recovery chain. Keep a separate recovery copy and test that representative files and services can actually be restored.
How to read the scenario
A success message proves the backup job reported completion. It does not by itself prove that a complete business recovery will work.
Identify the required outcome, the evidence already provided, and the limits on the technician’s action. Compare every option against those details before deciding. Record why the closest alternative does not meet the stated need.
Original practice example
A support team wants evidence that a backup protects against a local disk failure. Which TWO actions strengthen the recovery plan? Select TWO.
- Keep the only copy on the original disk.
- Test restoring representative files.
- Store a recovery copy on separate media.
- Assume a successful job proves every file can be restored.
Show the answer and explanation
Test restoring representative files.; Store a recovery copy on separate media.
Separate media reduces shared failure risk, and restore testing verifies that the recovery copy is usable.
Study questions
Which objective does this guide support?
220-1202, objective 4.3. This independent guide supports original practice and does not replace the full official objectives.
What should I watch for in a scenario?
A success message proves the backup job reported completion. It does not by itself prove that a complete business recovery will work.
Source and version
CompTIA official 220-1202 objectives, objective 4.3. Verified November 5, 2026. Use the exam code when choosing study materials; similarly named certifications can have different objectives.