CCSP Cloud Platform and Infrastructure Security Practice Question
A cloud architect is designing VPC connectivity for a global organization with multiple AWS accounts. They need a central hub for connecting many VPCs together, supporting transitive routing. Which service should they use?
⚠ Common exam trap
CCSP often tests the confusion between VPC Peering (non-transitive, one-to-one) and Transit Gateway (transitive, hub-and-spoke), leading candidates to pick VPC Peering for scalable multi-VPC connectivity.
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
✓
Transit Gateway
AWS Transit Gateway acts as a central hub that connects multiple VPCs and on-premises networks, supporting transitive routing between all attached VPCs. It simplifies network architecture by eliminating the need for complex full-mesh VPC peering and allows scalable, hub-and-spoke connectivity. For a global organization with many VPCs across accounts, Transit Gateway is the designed solution.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Private Link
Why it's wrong here
PrivateLink exposes a specific service endpoint to consumers via interface endpoints; it does not interconnect whole VPC networks or route traffic between them. It would be correct for privately publishing a single service to other accounts, but not for building a transitive routing hub.
- ✓
Transit Gateway
Why this is correct
Transit Gateway acts as a regional hub attaching many VPCs and on-premises networks, with transitive routing between attachments. That satisfies the central-hub and transitive-routing constraints, unlike VPC peering, which is non-transitive and requires a mesh of individual connections.
- ✗
VPN Connection
Why it's wrong here
A VPN connection links on-premises networks or individual VPCs over IPsec, providing no hub-and-spoke transitive routing between many VPCs. It would be correct for encrypted connectivity to an on-premises data centre, but the requirement here is centralised many-to-many VPC interconnection.
- ✗
VPC Peering
Why it's wrong here
VPC peering creates one-to-one connections that are explicitly non-transitive, so a mesh of peerings cannot route traffic through a central hub. It would be correct for connecting two VPCs directly, but the stem requires transitive routing across many accounts.
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About these practice questions
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official ISC2 exam blueprint
This CCSP practice question is part of Courseiva's free ISC2 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 CCSP exam.