SDSI Secure Infrastructure Design Practice Question
You are designing a security architecture for a hybrid cloud environment using Cisco Secure Firewall. Which design pattern effectively mitigates the risk of lateral movement between VPCs in AWS while maintaining centralized policy enforcement?
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
✓
Utilizing a Transit Gateway with a centralized inspection VPC and VPC attachments.
Using a Transit Gateway with a centralized inspection VPC forces traffic through a firewall cluster, enabling consistent policy enforcement.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Relying solely on AWS Security Groups for inter-VPC traffic.
Why it's wrong here
Security Groups are insufficient for deep packet inspection and centralized logging.
- ✗
Implementing an Overlay Network using Cisco ACI Remote Leaf.
Why it's wrong here
Remote Leaf is for on-prem extensions, not AWS VPC-to-VPC routing.
- ✓
Utilizing a Transit Gateway with a centralized inspection VPC and VPC attachments.
Why this is correct
Centralized inspection via Transit Gateway allows for consistent security policy application.
- ✗
Deploying individual firewall appliances in each VPC.
Why it's wrong here
This increases operational overhead and fragmentation of policies.
About these practice questions
This SDSI question is part of Courseiva's 298-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 Cisco exam blueprint
This SDSI practice question is part of Courseiva's free Cisco 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 SDSI exam.