Question 1,507 of 1,660
SAP-C02 Continuous Improvement for Existing Solutions Practice Question
A company has a production AWS account with multiple VPCs connected via a Transit Gateway. The security team wants to centrally inspect all traffic between VPCs using a third-party firewall appliance. The firewall must be able to process traffic, and the solution must be highly available. Which THREE steps should the company take?
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
✓
Attach Elastic Network Interfaces (ENIs) of the firewall instances to the inspection VPC subnets.
Options A, C, and E are correct. A: Attaching ENIs of firewall instances to the inspection VPC subnets allows traffic to be forwarded to the firewall for inspection. C: Deploying the firewall appliance as an EC2 instance in each AZ with auto scaling groups ensures high availability and scalability. E: Creating a dedicated inspection VPC with firewall instances in different Availability Zones centralizes inspection and provides fault tolerance. Option B is incorrect because propagating routes directly between VPCs would bypass the inspection firewall. Option D is incorrect because using a single route table in the Transit Gateway would not allow for selective routing to the inspection VPC and limits high availability.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Attach Elastic Network Interfaces (ENIs) of the firewall instances to the inspection VPC subnets.
Why this is correct
ENIs are required for traffic to pass through the firewall.
- ✗
Configure the Transit Gateway to propagate routes directly between VPCs.
Why it's wrong here
Would bypass the firewall inspection.
- ✓
Deploy the firewall appliance as an EC2 instance in each AZ, with auto scaling groups.
Why this is correct
Ensures availability if an AZ fails.
- ✗
Use a single route table in the Transit Gateway for all VPC attachments.
Why it's wrong here
Does not allow asymmetric routing through firewall; need separate route tables.
- ✓
Create a dedicated inspection VPC with firewall instances in different Availability Zones.
Why this is correct
Centralizes inspection and provides HA across AZs.
Visual reference
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Last reviewed: Jun 20, 2026
This SAP-C02 practice question is part of Courseiva's free Amazon Web Services 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 SAP-C02 exam.
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