NetSec-Architect Practice Question: Multi Cloud And Hybrid Network Security Architecture
You are configuring high availability for VM-Series firewalls deployed in AWS across multiple Availability Zones using AWS Lambda for HA failover. What event triggers the AWS Lambda function to initiate the failover sequence?
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
✓
A CloudWatch metric alarm triggered by path monitoring failure invoking the Lambda function
AWS Lambda-based HA for VM-Series relies on the active firewall sending heartbeat or state change messages (or CloudWatch alarms triggered by interface status) to invoke the Lambda function.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
An Amazon SNS email notification clicked by an administrator
Why it's wrong here
Automated HA failover does not rely on manual email clicking.
- ✗
A direct SNMP trap sent from the firewall management plane to AWS IAM
Why it's wrong here
AWS IAM does not process SNMP traps.
- ✗
An AWS Trusted Advisor security check failure
Why it's wrong here
Trusted Advisor checks best practices, not real-time firewall HA states.
- ✓
A CloudWatch metric alarm triggered by path monitoring failure invoking the Lambda function
Why this is correct
Path monitoring failure on the VM-Series updates a CloudWatch metric, which triggers the Lambda function to execute failover tasks.
Quick reference
Cloud Service Model Comparison
| Model | You Manage | Provider Manages | Examples |
|---|---|---|---|
| IaaS | OS, runtime, apps, data | Hardware, hypervisor, networking | EC2, Azure VMs, GCP Compute Engine |
| PaaS | Apps and data | OS, runtime, middleware, hardware | Elastic Beanstalk, Azure App Service |
| SaaS | Data and settings only | Everything else | Microsoft 365, Salesforce, Workday |
| FaaS / Serverless | Function code only | Infra, scaling, runtime | Lambda, Azure Functions, Cloud Run |
| CaaS | Containers and apps | Kubernetes, OS, hardware | EKS, AKS, GKE |
About these practice questions
This NetSec-Architect question is part of Courseiva's 228-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →
JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official Palo Alto Networks exam blueprint
This NetSec-Architect practice question is part of Courseiva's free Palo Alto Networks 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 NetSec-Architect exam.