# Which of the following is a valid way to configure a DNS-01 challenge for a Route53 provider?

cert-manager, Hard (Expert), Concepts. https://k8wiz.com/uquiz/which-of-the-following-is-a-valid-way-to-configure-a-dns-01-challenge-for-a-route53-provider

- A. By specifying AWS credentials and region
- B. By specifying a Route53 API token
- C. By specifying a Route53 webhook
- D. By specifying a Route53 plugin

**Answer:** By specifying AWS credentials and region

**Explanation:** A valid way to configure a DNS-01 challenge for a Route53 provider is by specifying AWS credentials and region. cert-manager can use these credentials to create the necessary DNS records in Route53 for solving the DNS-01 challenge.