Quick Answer
The answer is AWS Transit Gateway and AWS Direct Connect. Transit Gateway serves as a central hub that interconnects multiple VPCs across different AWS accounts, while Direct Connect provides a dedicated private network link from your on-premises data center to AWS, bypassing the public internet for consistent latency and bandwidth. Together, they create a scalable hub-and-spoke hybrid network architecture, where the Transit Gateway routes traffic between all VPCs and the Direct Connect virtual interface, ensuring seamless private connectivity. On the SAP-C02 exam, this combination tests your understanding of centralized routing versus peering each VPC individually—a common trap is choosing VPC Peering, which cannot scale across many VPCs or connect to on-premises directly. A key memory tip: think of Transit Gateway as the “hub” that connects all “spokes” (VPCs and Direct Connect), forming a single, manageable gateway for hybrid traffic.
This SAP-C02 practice question tests your understanding of design solutions for organizational complexity. 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 is implementing a hybrid network architecture with multiple VPCs in different AWS accounts. They need to ensure private connectivity between the VPCs and their on-premises data center. Which TWO services should they use together to meet this requirement?
AWS Direct Connect
Direct Connect provides private, dedicated connectivity to on-premises.
Amazon Route 53 Resolver
Why wrong: Route 53 Resolver is for DNS resolution.
VPC peering
Why wrong: VPC peering does not support transitive routing.
AWS Transit Gateway
Transit Gateway connects multiple VPCs and VPN connections.
AWS Client VPN
Why wrong: Client VPN is for individual remote users.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
AWS Direct Connect
AWS Direct Connect provides a dedicated private network connection from an on-premises data center to AWS, bypassing the public internet for consistent latency and bandwidth. AWS Transit Gateway acts as a central hub to interconnect multiple VPCs across different AWS accounts and route traffic to the Direct Connect virtual interface, enabling a scalable hub-and-spoke architecture for hybrid connectivity.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
AWS Direct Connect
Why this is correct
Direct Connect provides private, dedicated connectivity to on-premises.
Related concept
Read the scenario before looking for a memorised answer.
Amazon Route 53 Resolver
Why it's wrong here
Route 53 Resolver is for DNS resolution.
VPC peering
Why it's wrong here
VPC peering does not support transitive routing.
AWS Transit Gateway
AWS Client VPN
Why it's wrong here
Client VPN is for individual remote users.
Common exam traps
The trap here is that candidates often choose VPC peering (Option C) thinking it can connect multiple VPCs to on-premises directly, but VPC peering lacks transitive routing and cannot terminate a Direct Connect connection, making Transit Gateway the required central aggregation point.
Detailed technical explanation
AWS Transit Gateway uses a BGP-based dynamic routing with Direct Connect virtual interfaces (private VIFs) to propagate on-premises routes into the transit gateway route tables, enabling automatic failover and load balancing across multiple Direct Connect connections. Under the hood, Transit Gateway supports up to 5,000 attachments per gateway and can be shared across accounts using AWS Resource Access Manager, making it ideal for multi-account hybrid architectures where VPCs need to communicate with on-premises without peering mesh complexity.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
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
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FAQ
Design Solutions for Organizational Complexity — This question tests Design Solutions for Organizational Complexity — Read the scenario before looking for a memorised answer..
The correct answer is: AWS Direct Connect — AWS Direct Connect provides a dedicated private network connection from an on-premises data center to AWS, bypassing the public internet for consistent latency and bandwidth. AWS Transit Gateway acts as a central hub to interconnect multiple VPCs across different AWS accounts and route traffic to the Direct Connect virtual interface, enabling a scalable hub-and-spoke architecture for hybrid connectivity.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 24, 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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