# What is the purpose of the 'dnsNames' field in a Certificate resource?

cert-manager, Easy (Beginner), Concepts. https://k8wiz.com/uquiz/what-is-the-purpose-of-the-dnsnames-field-in-a-certificate-resource

- A. To specify the DNS names that the certificate should be valid for
- B. To specify DNS servers for validation
- C. To specify DNS zones for the certificate
- D. To specify DNS records to create

**Answer:** To specify the DNS names that the certificate should be valid for

**Explanation:** The 'dnsNames' field in a Certificate resource specifies the DNS names (Subject Alternative Names) that the certificate should be valid for. These are typically domain names for which the certificate will be used, such as 'example.com' or '*.example.com'.