NO.83 Is this statement correct?
Solution: A Dockerfile provides instructions for building a Docker image

NO.84 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: /data, and use this to populate a volume in a pod.

NO.85 What is the docker command to setup a swarm?

NO.86 Is this statement correct?
Solution. A Dockerfile stores persistent data between deployments of a container

NO.87 Can this set of commands identify the published port(s) for a container?
Solution: docker container inspect’, ‘docker port’

NO.88 In the context of a swarm mode cluster, does this describe a node?
Solution: a virtual machine participating in the swarm

NO.89 You want to create a container that is reachable from its host’s network. Does this action accomplish this?
Solution: Use either EXPOSE or –publish to access the containers on the bridge network

NO.90 You add a new user to the engineering organization in DTR.
Will this action grant them read/write access to the engineering/api repository?
Solution. Mirror the engineering/api repository to one of the user’s own private repositories.

NO.91 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 constraints

NO.92 Will this configuration achieve fault tolerance for managers in a swarm?
Solution: an odd number of manager nodes, totaling more than two

NO.93 What is the purpose of multi-stage builds?

NO.94 Which ‘docker run’ flag lifts cgroup limitations?

NO.95 Is this a way to configure the Docker engine to use a registry without a trusted TLS certificate?
Solution. Set INSECURE_REGISTRY in the’ /etc/docker/default’ configuration file.

NO.96 Will this command list all nodes in a swarm cluster from the command line?
Solution: ‘docker node Is’

NO.97 Is this a supported user authentication method for Universal Control Plane?
Solution. SAML

NO.98 Will a DTR security scan detect this?
Solution.image configuration poor practices, such as exposed ports or inclusion of compilers in production images

NO.99 Will this configuration achieve fault tolerance for managers in a swarm?
Solution: an odd number of manager nodes, totaling more than two

NO.100 You created a new service named ‘http’ and discover it is not registering as healthy. Will this command enable you to view the list of historical tasks for this service?
Solution: ‘docker service inspect http’

NO.101 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 pod and add all the resources needed for each application

NO.102 You are running only Kubernetes workloads on a worker node that requires maintenance, such as installing patches or an OS upgrade
Which command must be run on the node to gracefully terminate all pods on the node, while marking the node as unschedulable?

NO.103 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.

NO.104 Will this command list all nodes in a swarm cluster from the command line?
Solution: ‘docker node Is’

NO.105 Which of the following is true about using the ‘-P’ option when creating a new container?