Absolute Free DCA Exam Practice for Comprehensive Preparation 

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. 

Is this a way to configure the Docker engine to use a registry without a trusted TLS certificate? Solution: Set IGNORE_TLS in the 'daemon.json' configuration file.

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. 

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

Will this command mount the host's '/data' directory to the ubuntu container in read-only mode? Solution: 'docker run --add-volume /data /mydata -read-only ubuntu'