- A
VPC Peering
Why wrong: VPC Peering creates one-to-one connections between VPCs and doesn't support transitive routing — connecting 10 VPCs fully requires 45 peering connections.
- B
AWS Transit Gateway
Transit Gateway is a managed cloud router that enables any-to-any connectivity between VPCs and on-premises networks through a single hub, with route tables controlling traffic flow.
- C
AWS Direct Connect
Why wrong: Direct Connect provides physical connectivity from on-premises to AWS — it doesn't connect VPCs to each other.
- D
Internet Gateway
Why wrong: Internet Gateways enable VPC internet access — they don't route traffic between VPCs or to on-premises networks.
Question 938 of 1,024
CLF-C02 Cloud Technology and Services Practice Question
This CLF-C02 practice question tests your understanding of cloud technology and services. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A company needs to connect multiple VPCs and on-premises networks through a single hub, simplifying network management. Which AWS service acts as a cloud router to interconnect these networks?
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
✓
AWS Transit Gateway
AWS Transit Gateway acts as a cloud router, using a hub-and-spoke model to interconnect multiple VPCs and on-premises networks through a single gateway. It simplifies network management by centralizing routing, supporting transitive routing between all attached networks, and integrating with AWS Direct Connect and VPN connections.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
VPC Peering
Why it's wrong here
VPC Peering creates one-to-one connections between VPCs and doesn't support transitive routing — connecting 10 VPCs fully requires 45 peering connections.
- ✓
AWS Transit Gateway
Why this is correct
Transit Gateway is a managed cloud router that enables any-to-any connectivity between VPCs and on-premises networks through a single hub, with route tables controlling traffic flow.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
AWS Direct Connect
Why it's wrong here
Direct Connect provides physical connectivity from on-premises to AWS — it doesn't connect VPCs to each other.
- ✗
Internet Gateway
Why it's wrong here
Internet Gateways enable VPC internet access — they don't route traffic between VPCs or to on-premises networks.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse VPC Peering (which is free but non-transitive and requires full mesh) with Transit Gateway (which provides transitive routing and central management), leading them to choose VPC Peering for multi-VPC connectivity without considering the hub-and-spoke requirement.
Detailed technical explanation
How to think about this question
Under the hood, AWS Transit Gateway uses a centralized routing table with route propagation from attached VPCs, VPNs, and Direct Connect gateways, supporting BGP dynamic routing for on-premises connections. In a real-world scenario, a company with dozens of VPCs and multiple branch offices can use Transit Gateway to reduce the complexity of managing hundreds of VPC peering connections and VPN tunnels, while enabling transitive routing and network segmentation through route tables and TGW attachments.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A healthcare organisation deploys an application with a public-facing web tier and a private database tier. The database subnet has no public IP and only accepts connections from the web tier's security group. Questions like this test whether you can design cloud network isolation using VNets/VPCs, subnets, and security group rules.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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Cloud Technology and Services — study guide chapter
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FAQ
Questions learners often ask
What does this CLF-C02 question test?
Cloud Technology and Services — This question tests Cloud Technology and Services — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: AWS Transit Gateway — AWS Transit Gateway acts as a cloud router, using a hub-and-spoke model to interconnect multiple VPCs and on-premises networks through a single gateway. It simplifies network management by centralizing routing, supporting transitive routing between all attached networks, and integrating with AWS Direct Connect and VPN connections.
What should I do if I get this CLF-C02 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 11, 2026
This CLF-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 CLF-C02 exam.
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