Question 51

A company's security policy specifies that development and production containers must run on separate nodes in a given Swarm cluster.
Can this be used to schedule containers to meet the security policy requirements?
Solution: label contraints
  • Question 52

    The Kubernetes yaml shown below describes a networkPolicy.

    Will the networkPolicy BLOCK this traffic?
    Solution: a request issued from a pod lacking the tier: api label, to a pod bearing the tier: backend label
  • Question 53

    Will this action upgrade Docker Engine CE to Docker Engine EE?
    Solution: Manually download the 'docker-ee' package
  • Question 54

    During development of an application meant to be orchestrated by Kubemetes, you want to mount the /data directory on your laptop into a container.
    Will this strategy successfully accomplish this?
    Solution. Create a Persistent VolumeClaim requesting storageClass:"" (which defaults to local storage) and hostPath and use this to populate a volume in a pod.
  • Question 55

    A service 'wordpress' is running using a password string to connect to a non-Dockerized database service. The password string is passed into the 'wordpress' service as a Docker secret. Per security policy, the password on the database was changed. Identity the correct sequence of steps to rotate the secret from the old password to the new password.