Q50. Seven managers are in a swarm cluster.
Is this how should they be distributed across three datacenters or availability zones?
Solution: 5-1-1

Q51. Which of the following constitutes a production-ready devicemapper configuration for the Docker engine?

Q52. Is this a type of Linux kernel namespace that provides container isolation?
Solution: Authentication

Q53. Does this describe the role of Control Groups (cgroups) when used with a Docker container?
Solution: accounting and limiting of resources

Q54. Two development teams in your organization use Kubernetes and want to deploy their applications while ensuring that Kubernetes-specific resources, such as secrets, are grouped together for each application.
Is this a way to accomplish this?
Solution: Create one namespace for each application and add all the resources to it.

Q55. One of several containers in a pod is marked as unhealthy after failing its livenessProbe many times. Is this the action taken by the orchestrator to fix the unhealthy container?
Solution: The unhealthy container is restarted.

Q56. Which of the following modes can be used for service discovery of a Docker swarm service (Pick 2 correct answers)

Q57. 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.

Q58. Which of the following are types of namespaces used by Docker to provide isolation? (Choose 2.)

Q59. Is this a function of UCP?
Solution: scans images to detect any security vulnerability

Q60. In Docker Trusted Registry, how would a user prevent an image, for example ‘nginx:latest’ from being
overwritten by another user with push access to the repository?

Q61. A server is running low on disk space. What command can be used to check the disk usage of images,
containers, and volumes for Docker engine?

Q62. 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’

Q63. What is the docker command to setup a swarm?

Q64. Will this command display a list of volumes for a specific container?
Solution: docker container logs nginx –volumes’