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Palo Alto Next-Generation Firewall Engineer Exam Materials-Question 4 Discussion
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When deploying Palo Alto Networks NGFWs in a cloud service provider (CSP) environment, which method ensures high availability (HA) across multiple availability zones? (Choose one answer)

  • A. Deploying Ansible scripts for zone-specific scaling
  • B. Implementing Terraform templates for redundancy within one availability zone
  • C. Using load balancer and health probes
  • D. Configuring active/active HA
Correct Answer: C

Brave-Dump Clients Votes

D 50%
C 50%

Comments



Ansar Ahmad Bariz 2026-03-13 21:36:38

Selected Answers: D


ddd

Anonymous User 2026-09-04 15:36:28

Selected Answers: C


C. Using load balancer and health probes

In public cloud, traditional HA doesn't work across availability zones — HA pairs depend on Layer 2 adjacency, floating IPs / gratuitous ARP, and a shared subnet, none of which exist across AZs in AWS/Azure/GCP. The cloud-native pattern is a scale-out (sandwich) design: independent VM-Series firewalls deployed one-per-AZ behind a cloud load balancer, with health probes detecting a failed or unhealthy firewall and steering traffic to the remaining instances in the other zones.

Why the others are wrong:

- A. Ansible scripts — configuration automation/bootstrapping. It provisions firewalls; it does nothing to detect failure or redirect traffic at runtime.
- B. Terraform within one AZ — Terraform is IaC (again, provisioning, not failover), and "within one availability zone" fails the multi-AZ requirement outright.
- D. Active/active HA — a VM-Series HA pair is supported only within a single AZ (and in Azure/AWS relies on cloud API calls to move interfaces/routes). It's also the more complex, less-recommended mode generally. It does not give you cross-AZ resilience.