Question 26

A docker service 'web' is running with a scale factor of 1 (replicas = 1).
Bob intends to use the command 'docker service update --replicas=3 web'.
Alice intends to use the command 'docker service scale web=3'.
How do the outcomes oft these two commands differ?
  • Question 27

    You want to mount external storage to a particular filesystem path in a container in a Kubernetes pod. What is the correct set of objects to use for this?
  • Question 28

    Will this command list all nodes in a swarm cluster from the command line?
    Solution. 'docker inspect nodes
  • Question 29

    You want to provide a configuration file to a container at runtime. Does this set of Kubernetes tools and steps accomplish this?
    Solution: Mount the configuration file directly into the appropriate pod and container using the .spec.containers.configMounts key.
  • Question 30

    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.