SAA-C03 Q155 · DNS

Question

The DNS provider that hosts a company's domain name records is experiencing outages that cause service disruption for a website running on AWS. The company needs to migrate to a more resilient managed DNS service and wants the service to run on AWS. What should a solutions architect do to rapidly migrate the DNS hosting service?

Accepted Answer

**Answer A is correct for every requirement in the question:**

1. **Resilient managed DNS service on AWS** → Amazon Route 53 is AWS's managed DNS service with a 100% availability SLA. It uses a global anycast network of DNS servers, making it one of the most resilient DNS services available.

2. **Public-facing website** → A **public hosted zone** is required because the website needs to be accessible from the internet. Public hosted zones contain records that specify how to route traffic on the internet for a domain.

3. **Rapid migration** → Route 53 supports **importing zone files** in standard BIND format. Most DNS providers allow you to export your DNS records as a zone file. You can then import this file directly into Route 53, which bulk-creates all the records instantly — no manua

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