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Does this describe the role of Control Groups (cgroups) when used with a Docker container? Solution: user authorization to the Docker API 

The Kubernetes yaml shown below describes a clusterIP service.

Is this a correct statement about how this service routes requests? Solution: Traffic sent to the IP of this service on port 8080 will be routed to port 80 in a random pod with the label aPP: nginx. 

The following Docker Compose file is deployed as a stack:

Is this statement correct about this health check definition? Solution: Health checks test for app health ten seconds apart. Three failed health checks transition the container into “unhealthy” status. 

The Kubernetes yaml shown below describes a networkPolicy.

Will the networkPolicy BLOCK this traffic? Solution: a request issued from a pod bearing the tier: backend label, to a pod bearing the tier: frontend label 

During development of an application meant to be orchestrated by Kubernetes, you want to mount the /data directory on your laptop into a container. Will this strategy successfully accomplish this? Solution. Set containers. Mounts. hostBinding: /data in the container's specification.