Free Docker DCA Exam Questions

You configure a local Docker engine to enforce content trust by setting the environment variable DOCKER_CONTENT_TRUST=1. If myorg/myimage: 1.0 is unsigned, does Docker block this command? Solution: docker container run myorg/myimage:1.0

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'

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 80 will be routed to port 8080 in a random pod with the label app: nginx. 

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: Add a volume to the pod that sets hostPath.path: /data, and then mount this volume into the pod's containers as desired. 

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 80 will be routed to port 8080 in a random pod with the label app: nginx.