AWS Certified Advanced Networking – Specialty (ANS-C01) — Question 62

A company’s network engineer is designing a hybrid DNS solution for an AWS Cloud workload. Individual teams want to manage their own DNS hostnames for their applications in their development environment. The solution must integrate the application-specific hostnames with the centrally managed DNS hostnames from the on-premises network and must provide bidirectional name resolution. The solution also must minimize management overhead.
Which combination of steps should the network engineer take to meet these requirements? (Choose three.)

Answer options

• A. Use an Amazon Route 53 Resolver inbound endpoint.
• B. Modify the DHCP options set by setting a custom DNS server value.
• C. Use an Amazon Route 53 Resolver outbound endpoint.
• D. Create DNS proxy servers.
• E. Create Amazon Route 53 private hosted zones.
• F. Set up a zone transfer between Amazon Route 53 and the on-premises DNS.

Correct answer: A, C, E

Explanation

The correct answer includes using an Amazon Route 53 Resolver inbound endpoint to allow DNS queries from the on-premises network to reach the AWS cloud, an outbound endpoint for AWS to resolve DNS queries to the on-premises network, and private hosted zones to manage application-specific hostnames. Options B and D do not directly address the hybrid DNS integration or bidirectional resolution requirements, while F involves unnecessary complexity since private hosted zones provide sufficient integration.