156-315.81.20 ClusterXL and VRRP High Availability Practice Question
Exhibit
cphaprob -a if eth1: 192.168.1.1 UP eth2: 10.0.0.1 UP eth3: 172.16.1.1 UP (1) 192.168.1.1: 192.168.1.1 UP (2) 10.0.0.1: 10.0.0.1 UP (3) 172.16.1.1: 172.16.1.1 UP
Refer to the exhibit. Which critical devices are being monitored by the cluster according to the output provided?
⚠ Common exam trap
Candidates often mistake physical interfaces for the only monitored items. They ignore the critical devices list, which tracks kernel-level processes that are equally essential for maintaining cluster health.
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
✓
The physical interfaces and the critical devices registered to the cluster.
The output lists the physical interfaces followed by the critical device registrations. Critical devices are internal kernel processes that ClusterXL monitors to ensure the gateway is healthy. If any of these devices report an error or 'DOWN' status, the cluster will trigger a failover. Monitoring these devices is essential for detecting non-interface-related failures like software crashes or service hang-ups.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Only the physical interfaces eth1, eth2, and eth3.
Why it's wrong here
The output clearly shows items beyond the physical interfaces. The items listed after the interfaces represent critical kernel devices that are being actively monitored for health status. Ignoring these would mean missing potential software failures that do not necessarily involve a physical interface disconnection or link down event.
- ✓
The physical interfaces and the critical devices registered to the cluster.
Why this is correct
The command output lists both the physical interfaces and the registered critical devices. Each component must be UP for the cluster member to be considered fully healthy. If any of these components fail, the member's status will change, potentially triggering a failover to the other node.
- ✗
Only the critical devices that are currently DOWN.
Why it's wrong here
The output shows all devices are currently UP, not just those that are down. The command reports the health status of all registered components, and the information is critical for identifying which components are being monitored to maintain high availability across the cluster member and its services.
- ✗
The routing table entries for the local gateway.
Why it's wrong here
This output does not represent the routing table. It represents the interface statuses and critical device heartbeat registrations within the ClusterXL kernel module. Routing information is managed through different CLI commands, and this specific output is focused purely on cluster member health and interface connectivity status monitoring.
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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
This 156-315.81.20 practice question is part of Courseiva's free Check Point certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 156-315.81.20 exam.