The badge earner can describe the 12-factor app principles, list the benefits of cloud native apps and the microservices architecture, describe how microservices are managed with IBM Cloud Container Service and Istio, show how to design microservices and how they communicate, show how a service mesh helps with microservice implementations, describe how Istio can be used to connect, manage, and secure microservices, and describe the logical components of Istio's data and control plane.