# What is the purpose of Istio's 'outlierDetection' field in DestinationRule?

Istio, Medium (Advanced), Traffic Management. https://k8wiz.com/uquiz/what-is-the-purpose-of-istios-outlierdetection-field-in-destinationrule

- A. To detect outliers in metrics
- B. To detect and remove abnormal services
- C. To implement circuit breaking by ejecting unhealthy hosts
- D. To detect and block malicious traffic

**Answer:** To implement circuit breaking by ejecting unhealthy hosts

**Explanation:** The 'outlierDetection' field in Istio's DestinationRule is used to implement circuit breaking by ejecting unhealthy hosts from the load balancing pool. It specifies conditions for when a host should be considered unhealthy and removed from the pool.