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Is this a Linux kernel namespace that is disabled by default and must be enabled at Docker engine runtime to be used?
Is this a Linux kernel namespace that is disabled by default and must be enabled at Docker engine runtime to be used? Solution: userA . YesB . NoView AnswerAnswer: A Explanation: The user namespace is a Linux kernel namespace that is disabled by default and must be enabled at Docker...
Will this sequence of steps completely delete an image from disk in the Docker Trusted Registry? Solution: Delete the image and delete the image repository from Docker Trusted Registry
Will this sequence of steps completely delete an image from disk in the Docker Trusted Registry? Solution: Delete the image and delete the image repository from Docker Trusted RegistryA . YesB . NoView AnswerAnswer: B Explanation: Deleting the image and the image repository from Docker Trusted Registry will not completely...
You want to create a container that is reachable from its host's network. Does this action accomplish this?
You want to create a container that is reachable from its host's network. Does this action accomplish this? Solution: Use --link to access the container on the bridge network.A . YesB . NoView AnswerAnswer: B Explanation: = The action of using --link to access the container on the bridge network...
Is this a way to accomplish this?
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: Add all the resources to the default namespace.A . YesB . NoView AnswerAnswer: B...
Will this configuration achieve fault tolerance for managers in a swarm?
Will this configuration achieve fault tolerance for managers in a swarm? Solution: only two managers, one active and one passive.A . YesB . NoView AnswerAnswer: B Explanation: = The configuration will not achieve fault tolerance for managers in a swarm, because it does not have enough managers to form a...
Does this command create a swarm service that only listens on port 53 using the UDP protocol?
Does this command create a swarm service that only listens on port 53 using the UDP protocol? Solution: ‘docker service create -name dns-cache -p 53:53 -service udp dns-cache'A . YesB . NoView AnswerAnswer: B Explanation: The command docker service create -name dns-cache -p 53:53 -service udp dns-cache is not valid...
Does this describe the role of Control Groups (cgroups) when used with a Docker container?
Does this describe the role of Control Groups (cgroups) when used with a Docker container? Solution: role-based access control to clustered resourcesA . YesB . NoView AnswerAnswer: B Explanation: = The role of Control Groups (cgroups) when used with a Docker container is not role-based access control to clustered resources....
You want to provide a configuration file to a container at runtime. Does this set of Kubernetes tools and steps accomplish this?
You want to provide a configuration file to a container at runtime. Does this set of Kubernetes tools and steps accomplish this? Solution: Turn the configuration file into a configMap object and mount it directly into the appropriate pod and container using the .spec.containers.configMounts key.A . YesB . NoView AnswerAnswer:...
Does this command display all the pods in the cluster that are labeled as 'env: development'?
Does this command display all the pods in the cluster that are labeled as 'env: development'? Solution: 'kubectl get pods -I env=development'A . YesB . NoView AnswerAnswer: B Explanation: The command ‘kubectl get pods -I env=development’ will not display all the pods in the cluster that are labeled as ‘env:...
Can this be used to schedule containers to meet the security policy requirements?
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 contraintsA . YesB . NoView AnswerAnswer: A Explanation: Label constraints can be used to schedule...
