# Which of the following is NOT a valid field in a Certificate resource?

cert-manager, Medium (Advanced), Concepts. https://k8wiz.com/uquiz/which-of-the-following-is-not-a-valid-field-in-a-certificate-resource

- A. secretName
- B. issuerRef
- C. dnsNames
- D. validationMethod

**Answer:** validationMethod

**Explanation:** validationMethod is not a valid field in a Certificate resource. The validation method is specified in the Issuer or ClusterIssuer configuration, not in the Certificate resource. Valid fields include secretName, issuerRef, dnsNames, commonName, duration, and renewBefore.