# What is an Issuer in cert-manager?

cert-manager, Easy (Beginner), Concepts. https://k8wiz.com/uquiz/what-is-an-issuer-in-cert-manager

- A. A component that issues certificates
- B. A Kubernetes resource that represents a certificate authority
- C. A plugin for generating certificates
- D. A service that validates certificate requests

**Answer:** A Kubernetes resource that represents a certificate authority

**Explanation:** An Issuer is a Kubernetes resource that represents a certificate authority (CA) that is able to generate signed certificates by honoring certificate signing requests. Issuers are namespaced resources, meaning they can only issue certificates within their own namespace.