- A
AWS Site-to-Site VPN and VPC Endpoints
Why wrong: Site-to-Site VPN provides encrypted connections but typically has higher latency than Direct Connect. VPC Endpoints are for private access to AWS services, not for on-premises connectivity.
- B
AWS Transit Gateway and AWS Direct Connect with VPN backup
Transit Gateway provides a hub-and-spoke model for multiple VPCs and on-premises networks. Direct Connect offers dedicated low-latency connections with encryption, and VPN provides a backup.
- C
VPC Peering and AWS Site-to-Site VPN
Why wrong: VPC Peering is not transitive and does not scale to multiple VPCs and on-premises locations efficiently. VPN provides encryption but not the low latency of Direct Connect.
- D
AWS Client VPN and VPC Peering
Why wrong: AWS Client VPN is for remote user access, not for site-to-site connectivity. VPC Peering is not transitive and lacks encryption.
SAP-C02 Design for New Solutions Practice Question
This SAP-C02 practice question tests your understanding of design for new solutions. 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 designing a new hybrid cloud solution that requires low-latency access to on-premises data from AWS. The connection must be highly available and encrypted. The company has multiple VPCs and on-premises locations. Which combination of services meets these requirements?
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 and AWS Direct Connect with VPN backup
Option B is correct because AWS Transit Gateway connects multiple VPCs and on-premises networks, and AWS Direct Connect provides dedicated encrypted connections with low latency and high availability when combined with VPN. Option A is wrong because VPC Peering does not support transitive routing or encrypted connections. Option C is wrong because Client VPN is for individual users, not site-to-site connections. Option D is wrong because AWS Site-to-Site VPN alone does not provide the low latency and high bandwidth of Direct Connect.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
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 Site-to-Site VPN and VPC Endpoints
Why it's wrong here
Site-to-Site VPN provides encrypted connections but typically has higher latency than Direct Connect. VPC Endpoints are for private access to AWS services, not for on-premises connectivity.
- ✓
AWS Transit Gateway and AWS Direct Connect with VPN backup
- ✗
VPC Peering and AWS Site-to-Site VPN
Why it's wrong here
VPC Peering is not transitive and does not scale to multiple VPCs and on-premises locations efficiently. VPN provides encryption but not the low latency of Direct Connect.
- ✗
AWS Client VPN and VPC Peering
Why it's wrong here
AWS Client VPN is for remote user access, not for site-to-site connectivity. VPC Peering is not transitive and lacks encryption.
Common exam traps
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
- Static NAT maps one inside address to one outside address.
- PAT allows many inside hosts to share one public address using ports.
- Inside local and inside global describe the private and translated addresses.
- NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
- Identify inside and outside interfaces first.
- Check whether the scenario needs static NAT, dynamic NAT or PAT.
- Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Real-world example
How this comes up in practice
A company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
What to study next
Got this wrong? Here's your next step.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related SAP-C02 NAT questions on configuration and troubleshooting.
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Design for New Solutions — study guide chapter
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FAQ
Questions learners often ask
What does this SAP-C02 question test?
Design for New Solutions — This question tests Design for New Solutions — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: AWS Transit Gateway and AWS Direct Connect with VPN backup — Option B is correct because AWS Transit Gateway connects multiple VPCs and on-premises networks, and AWS Direct Connect provides dedicated encrypted connections with low latency and high availability when combined with VPN. Option A is wrong because VPC Peering does not support transitive routing or encrypted connections. Option C is wrong because Client VPN is for individual users, not site-to-site connections. Option D is wrong because AWS Site-to-Site VPN alone does not provide the low latency and high bandwidth of Direct Connect.
What should I do if I get this SAP-C02 question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related SAP-C02 NAT questions on configuration and troubleshooting.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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Last reviewed: Jun 20, 2026
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