AWS Certified Advanced Networking – Specialty (ANS-C00) — Question 46

A Systems Administrator is designing a hybrid DNS solution with spilt-view. The apex-domain `example.com` should be served through name servers across multiple top-level domains (TLDs). The name server for subdomain `dev.example.com` should reside on-premises. The administrator has decided to use Amazon
Route 53 to achieve this scenario.
What procedurals steps must be taken to implement the solution?

Answer options

• A. Use a Route 53 public hosted zone for example.com and a private hosted zone for dev.example.com
• B. Use a Route 53 public and private hosted zone for example.com, and perform subdomain delegation for dev.example.com
• C. Use a Route 53 public hosted zone for example.com, and perform subdomain delegation for dev.example.com
• D. Use a Route 53 private hosted zone for example.com, and perform subdomain delegation for dev.example.com

Correct answer: B

Explanation

The correct answer is B because it allows the use of both a public hosted zone for the apex domain and a private hosted zone for the subdomain, facilitating proper subdomain delegation for `dev.example.com` while maintaining the necessary visibility. Option A is incorrect as it does not include both public and private zones for the apex domain. Option C fails to address the need for a private hosted zone for the subdomain, and option D incorrectly suggests using a private hosted zone for the apex domain, which is not suitable for a hybrid setup.