After creating a new service named 'http', you notice that the new service is not registering as healthy. How do you view the list of historical tasks for that service by using the command...
Which statement is true about DTR garbage collection?A . Garbage collection removes unreferenced image layers from DTR's backend storage.B . Garbage collection removes exited containers from cluster nodes.C . Garbage collection removes DTR images...
Which of the following commands wifi automatically create a volume when a container is started?A . 'docker container run --name nginxtest --volumes=/app nginx'B . 'docker container run --name nginxtest -v /app:mount nginx'C . 'docker...
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?A . 'docker system df'B . 'docker system prune'C...
Which flag for a service would allow a container to consume more than 2 GB of memory only when there is no memory contention but would also prevent a container from consuming more than...
Which of the following constitutes a production-ready devicemapper configuration for the Docker engine?A . Create a volume group in devicemapper and utilize the '--dm.thinpooldev' Docker daemon option, specifying the volume groupB . Format a...
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?A . Tag the image with 'nginx:immutable'B . Remove...
What is the difference between the ADD and COPY dockerfile instructions? (choosen 2)A . ADD supports compression format handling while COPY does not.B . COPY supports regular expression handling while ADD does not.C ....
Which of the following statements is true about secrets?A . Secrets can be created from any node in the cluster.B . Secrets can be modified after they are created.C . Secret are stored unencrypted...
Which one of the following commands will show a list of volumes for a specific container?A . 'docker container logs nginx --volumes'B . 'docker container inspect nginx'C . 'docker volume inspect nginx'D . 'docker...
