156-315.81.20 Gateway Deployment and Upgrades Practice Question
A Security Gateway is being upgraded from R80.40 to R81.20 using CPUSE. The administrator wants to ensure that the upgrade can be rolled back if it fails. Which statement about CPUSE rollback is correct?
⚠ Common exam trap
The trap here is assuming that CPUSE automatically creates a rollback snapshot, but it must be explicitly configured or initiated.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
CPUSE rollback requires a previously created system snapshot, which can be taken manually or automatically if configured, and the rollback process reverts the entire system to that snapshot.
CPUSE rollback is snapshot-based. A system snapshot must be created before the upgrade, either manually or through automation. The rollback process restores the entire system to that snapshot, including the previous software version and configuration. Without a snapshot, rollback is not possible via CPUSE, so administrators should always ensure a snapshot is taken before upgrading.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
CPUSE rollback is only possible if the upgrade was performed using the 'Clean Install' method, not In-Place Upgrade.
Why it's wrong here
CPUSE rollback is available for In-Place Upgrade as well, provided a snapshot was taken. The Clean Install method does not support rollback because it wipes the system. In-Place Upgrade preserves data and allows rollback via snapshot. The statement incorrectly limits rollback to Clean Install, which is not true.
- ✗
CPUSE automatically creates a snapshot before the upgrade, and rollback is always possible using the 'revert' option in the CPUSE menu.
Why it's wrong here
CPUSE does not automatically create a snapshot before every upgrade. While it can create a snapshot if configured, it is not automatic. Rollback via CPUSE's 'revert' option is only available if a snapshot was taken. Administrators must manually initiate a snapshot or ensure the upgrade method includes one. Relying on automatic snapshots can lead to no rollback capability.
- ✗
CPUSE rollback can be performed without a snapshot by using the 'undo' command, which reverses the package installation.
Why it's wrong here
CPUSE does not have an 'undo' command that reverses package installation without a snapshot. Rollback is snapshot-based; without a snapshot, reverting to the previous version requires a full reinstall or restore from backup. The 'undo' command does not exist in CPUSE for this purpose. This option misrepresents CPUSE capabilities.
- ✓
CPUSE rollback requires a previously created system snapshot, which can be taken manually or automatically if configured, and the rollback process reverts the entire system to that snapshot.
Why this is correct
CPUSE rollback relies on a system snapshot created before the upgrade. Snapshots can be taken manually via CPUSE or Gaia Portal, or automatically if the administrator configures it. The rollback reverts the entire system state, including the operating system and Check Point configuration, to the snapshot. This provides a safe fallback if the upgrade fails.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official Check Point exam blueprint
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