NetSec-Architect Practice Question: Multi Cloud And Hybrid Network Security Architecture
You are architecting a Transit Gateway (TGW) design in AWS with centralized security using VM-Series firewalls in a security VPC. East-West traffic between Spoke VPCs must be inspected by the firewalls. Which AWS feature must be configured on the TGW route tables to ensure traffic destined to another Spoke VPC is intercepted and routed to the security VPC attachment?
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
✓
Route table propagation with specific static routes pointing to the security VPC attachment
AWS Transit Gateway route tables must be configured with specific route associations and propagations, directing traffic from Spoke attachments toward the security VPC attachment for inspection.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
AWS Network Firewall rules mirroring all traffic to the VM-Series interface
Why it's wrong here
AWS Network Firewall is a separate service and not required for TGW static routing.
- ✗
Security groups attached directly to the TGW attachment interface
Why it's wrong here
Security groups do not control routing decisions inside a Transit Gateway.
- ✓
Route table propagation with specific static routes pointing to the security VPC attachment
Why this is correct
Static routes pointing to the security VPC attachment are required in the spoke route tables to steer inter-VPC traffic.
- ✗
Cross-region peering attachments with BGP enabled
Why it's wrong here
BGP is not supported natively across standard intra-region TGW attachments for this topology.
About these practice questions
One of 228 original NetSec-Architect practice questions on Courseiva, each with a full explanation and wrong-answer analysis — not exam dumps or protected exam content. 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.