# How can you implement traffic mirroring with percentage-based control in Istio?

Istio, Hard (Expert), Traffic Management. https://k8wiz.com/uquiz/how-can-you-implement-traffic-mirroring-with-percentage-based-control-in-istio

- A. By using the 'mirror_percent' field in VirtualService
- B. By using multiple VirtualServices with different weights
- C. By using EnvoyFilter to modify the mirroring behavior
- D. By using a custom mixer adapter

**Answer:** By using the 'mirror_percent' field in VirtualService

**Explanation:** Traffic mirroring with percentage-based control in Istio is implemented by using the 'mirror_percent' field in VirtualService. This field allows you to specify what percentage of traffic should be mirrored to the target service.