# What is the purpose of Istio's PeerAuthentication resource?

Istio, Medium (Advanced), Security. https://k8wiz.com/uquiz/what-is-the-purpose-of-istios-peerauthentication-resource

- A. To authenticate users
- B. To authenticate requests using JWT tokens
- C. To configure mutual TLS settings for service-to-service communication
- D. To authenticate API keys

**Answer:** To configure mutual TLS settings for service-to-service communication

**Explanation:** PeerAuthentication in Istio is used to configure mutual TLS settings for service-to-service communication. It allows you to specify whether mTLS is required, optional, or disabled for services.