# What is the purpose of Istio's 'mirror' field in VirtualService?

Istio, Hard (Expert), Traffic Management. https://k8wiz.com/uquiz/what-is-the-purpose-of-istios-mirror-field-in-virtualservice

- A. To create a backup of the service
- B. To mirror traffic to another service for testing or monitoring
- C. To reflect traffic back to the sender
- D. To create a mirror image of the configuration

**Answer:** To mirror traffic to another service for testing or monitoring

**Explanation:** The 'mirror' field in Istio's VirtualService is used to mirror traffic to another service for testing or monitoring. It sends a copy of the requests to the mirrored service without affecting the original request path.