# Cluster Outage Simulation Returns, starts, or ends a cluster outage simulation. ## Operations - [Return One Outage Simulation](https://www.mongodb.com/docs/api/doc/atlas-admin-api-v2/2023-01-01/operation/operation-getgroupclusteroutagesimulation.md) - [Start One Outage Simulation](https://www.mongodb.com/docs/api/doc/atlas-admin-api-v2/2023-01-01/operation/operation-startgroupclusteroutagesimulation.md) - [End One Outage Simulation](https://www.mongodb.com/docs/api/doc/atlas-admin-api-v2/2023-01-01/operation/operation-endgroupclusteroutagesimulation.md) [Powered by Bump.sh](https://bump.sh)