# What is the purpose of Istio's 'exportTo' field in VirtualService and DestinationRule?

Istio, Hard (Expert), Advanced Configuration. https://k8wiz.com/uquiz/what-is-the-purpose-of-istios-exportto-field-in-virtualservice-and-destinationrule

- A. To export metrics to external systems
- B. To control the visibility of the resource across namespaces
- C. To export the configuration to other clusters
- D. To export traffic to external services

**Answer:** To control the visibility of the resource across namespaces

**Explanation:** The 'exportTo' field in Istio's VirtualService and DestinationRule is used to control the visibility of the resource across namespaces. It allows you to specify which namespaces can use the resource.