- A
Route 53 Resolver outbound endpoints in each VPC to forward queries to the central resolver.
Allows conditional forwarding.
- B
A Transit Gateway connecting all VPCs.
Required for connectivity between VPCs.
- C
Route 53 private hosted zones associated with the shared services VPC.
The central resolver will host the zones.
- D
Route 53 Resolver inbound endpoints in the shared services VPC.
Why wrong: Inbound endpoints are for on-premises to AWS, not inter-VPC.
- E
VPC peering connections between each VPC and the shared services VPC.
Why wrong: Not scalable; Transit Gateway is better.
Question 1,395 of 1,746
SAP-C02 Practice Question: Design Solutions for Organizational Complexity
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 migrating to a multi-account structure and needs to manage DNS resolution across accounts. The company uses Amazon Route 53 private hosted zones. They want a central resolver in the shared services VPC. Which THREE components are required?
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 53 Resolver outbound endpoints in each VPC to forward queries to the central resolver.
Option A is correct because Route 53 Resolver outbound endpoints in each VPC forward DNS queries from those VPCs to the central resolver in the shared services VPC, enabling conditional forwarding for private hosted zones. This is the standard mechanism for cross-account DNS resolution when using a central resolver, as it allows each VPC to send queries to a resolver that can access private hosted zones associated with the shared services VPC.
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.
- ✓
Route 53 Resolver outbound endpoints in each VPC to forward queries to the central resolver.
Why this is correct
Allows conditional forwarding.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
A Transit Gateway connecting all VPCs.
Why this is correct
Required for connectivity between VPCs.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
Route 53 private hosted zones associated with the shared services VPC.
Why this is correct
The central resolver will host the zones.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Route 53 Resolver inbound endpoints in the shared services VPC.
Why it's wrong here
Inbound endpoints are for on-premises to AWS, not inter-VPC.
- ✗
VPC peering connections between each VPC and the shared services VPC.
Why it's wrong here
Not scalable; Transit Gateway is better.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse inbound and outbound Resolver endpoints, assuming inbound endpoints are needed for forwarding queries from other VPCs, when in fact outbound endpoints are used to send queries out of a VPC to a central resolver.
Detailed technical explanation
How to think about this question
Route 53 Resolver outbound endpoints use a set of elastic network interfaces in a VPC to forward DNS queries to a target IP address (the central resolver) based on rules defined in forwarding rules. The central resolver can then query private hosted zones associated with the shared services VPC, leveraging the fact that Route 53 private hosted zones are only resolvable from within the VPCs they are associated with. In a multi-account setup, a Transit Gateway (Option B) is often used to route traffic between VPCs, but DNS forwarding requires explicit Resolver endpoints, not just network connectivity.
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 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.
Visual reference
What to study next
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Design Solutions for Organizational Complexity — study guide chapter
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FAQ
Questions learners often ask
What does this SAP-C02 question test?
Design Solutions for Organizational Complexity — This question tests Design Solutions for Organizational Complexity — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Route 53 Resolver outbound endpoints in each VPC to forward queries to the central resolver. — Option A is correct because Route 53 Resolver outbound endpoints in each VPC forward DNS queries from those VPCs to the central resolver in the shared services VPC, enabling conditional forwarding for private hosted zones. This is the standard mechanism for cross-account DNS resolution when using a central resolver, as it allows each VPC to send queries to a resolver that can access private hosted zones associated with the shared services VPC.
What should I do if I get this SAP-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: Jul 4, 2026
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