- A
A VPC endpoint for Route 53 Resolver service.
Why wrong: A VPC endpoint is for accessing AWS services privately, not for DNS forwarding.
- B
Route 53 Resolver rule that forwards example.corp to on-premises DNS servers.
Why wrong: A resolver rule must be associated with an outbound endpoint to forward queries.
- C
Route 53 Resolver inbound endpoint.
Why wrong: An inbound endpoint allows on-premises DNS to forward queries to VPC, not the other way.
- D
Route 53 Resolver outbound endpoint and associate a resolver rule.
An outbound endpoint forwards DNS queries from VPC to on-premises, and a rule specifies the domain.
Question 1,023 of 1,705
Route 53 Resolver Outbound Endpoint for Hybrid DNS
This ANS-C01 practice question tests your understanding of network implementation. 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 wants to enable DNS resolution for hybrid network using Route 53 Resolver. The on-premises DNS servers are reachable via Direct Connect. The company wants to forward queries for a custom domain (example.corp) from VPC to on-premises. Which resource should be created in the VPC?
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 endpoint and associate a resolver rule.
Option D is correct because to forward DNS queries from a VPC to on-premises DNS servers, you need a Route 53 Resolver outbound endpoint, which initiates outbound DNS traffic from the VPC. You then associate a resolver rule that specifies the domain (example.corp) and the target on-premises DNS server IPs, enabling conditional forwarding via Direct Connect.
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.
- ✗
A VPC endpoint for Route 53 Resolver service.
Why it's wrong here
A VPC endpoint is for accessing AWS services privately, not for DNS forwarding.
- ✗
Route 53 Resolver rule that forwards example.corp to on-premises DNS servers.
Why it's wrong here
A resolver rule must be associated with an outbound endpoint to forward queries.
- ✗
Route 53 Resolver inbound endpoint.
Why it's wrong here
An inbound endpoint allows on-premises DNS to forward queries to VPC, not the other way.
- ✓
Route 53 Resolver outbound endpoint and associate a resolver rule.
Why this is correct
An outbound endpoint forwards DNS queries from VPC to on-premises, and a rule specifies the domain.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The ANS-C01 exam often tests the distinction between inbound and outbound endpoints; the trap here is confusing the direction of DNS traffic, leading candidates to select the inbound endpoint (Option C) when outbound forwarding is required.
Detailed technical explanation
How to think about this question
Route 53 Resolver outbound endpoints use elastic network interfaces in the VPC to send DNS queries to on-premises DNS servers over Direct Connect. The resolver rule defines conditional forwarding based on the domain name, and the outbound endpoint handles the actual traffic flow. In a hybrid network, this setup ensures that VPC resources can resolve custom domains like example.corp without exposing the on-premises DNS servers to the internet.
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
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FAQ
Questions learners often ask
What does this ANS-C01 question test?
Network Implementation — This question tests Network Implementation — 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 endpoint and associate a resolver rule. — Option D is correct because to forward DNS queries from a VPC to on-premises DNS servers, you need a Route 53 Resolver outbound endpoint, which initiates outbound DNS traffic from the VPC. You then associate a resolver rule that specifies the domain (example.corp) and the target on-premises DNS server IPs, enabling conditional forwarding via Direct Connect.
What should I do if I get this ANS-C01 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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