156-315.81.20 ClusterXL and VRRP High Availability Practice Question
An administrator manages a three-member ClusterXL High Availability cluster on R81.10. During a maintenance window, the administrator needs to upgrade the standby member without causing a failover of the active member. The administrator plans to use the ClusterXL command-line tools. Which sequence of actions will allow the upgrade while preserving the active member's role?
⚠ Common exam trap
Many candidates confuse clusterXL_admin down on the active member with the correct procedure, which is to take the standby member down first.
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
✓
On the standby member, run clusterXL_admin down, upgrade the member, then run clusterXL_admin up and verify synchronization before proceeding.
The correct approach is to gracefully remove the standby member from the cluster using clusterXL_admin down, perform the upgrade, then bring it back with clusterXL_admin up and confirm synchronization. This avoids any impact on the active member and maintains cluster availability. The active member should not be stopped or forced down during a standby upgrade, and SmartConsole is not the tool for this operation.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Run clusterXL_admin down on the active member, upgrade the standby member, then run clusterXL_admin up on the active member.
Why it's wrong here
Running clusterXL_admin down on the active member forces it to give up the active role immediately, causing a failover to another member. That contradicts the goal of preserving the active member's role. This command is used when you intentionally want to take a member out of the cluster, not when you want to upgrade a standby member without affecting the active one.
- ✗
On the active member, run cpstop, upgrade the standby member, then run cpstart on the active member.
Why it's wrong here
Running cpstop on the active member stops all Check Point services and forces a failover to another member, which is exactly what the administrator wants to avoid. cpstop is a disruptive operation that affects the entire gateway, not just the standby member. This sequence would cause an unplanned outage and is not appropriate for a maintenance upgrade of a standby node.
- ✓
On the standby member, run clusterXL_admin down, upgrade the member, then run clusterXL_admin up and verify synchronization before proceeding.
Why this is correct
Taking the standby member down with clusterXL_admin down removes it from the cluster cleanly without triggering a failover of the active member. After the upgrade, clusterXL_admin up rejoins the member, and verifying synchronization ensures it is ready before any further maintenance. This is the standard procedure for upgrading a standby member in a ClusterXL HA cluster while keeping the active member in place.
- ✗
Use SmartConsole to change the cluster member's state to 'Down' for the standby member, then upgrade it and set it back to 'Active'.
Why it's wrong here
SmartConsole does not provide a direct per-member state toggle to 'Down' or 'Active' for ClusterXL members in the way described. Cluster member state is controlled by ClusterXL mechanisms and CLI tools such as clusterXL_admin. While SmartConsole can show cluster status, it is not the correct tool for gracefully taking a standby member out of the cluster for an upgrade.
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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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