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ANS-C01 Network Implementation Practice Question

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?

⚠ Common exam trap

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.

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.

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.

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.

Visual reference

Client Recursive Resolver Root DNS (13 root servers) TLD DNS (.com, .org, …) Authoritative example.com query IP addr answer

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Written by Johnson Ajibi, MSc IT Security

Senior Network & Security Engineer · founder of Courseiva

This ANS-C01 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 ANS-C01 exam.