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. 

Does this command display all the pods in the cluster that are labeled as 'env: development'? Solution: 'kubectl get pods --all-namespaces -label env=development'

Is this statement correct? Solution.A Dockerfile stores persistent data between deployments of a container

Can this set of commands identify the published port(s) for a container? Solution: docker container inspect', 'docker port' 

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