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The Docker online test evaluates a candidate’s ability to work with the platform virtualization tool Docker, including the knowledge of how to configure containers and images, run services within those containers, and manage the lifecycle of those containers.
It’s an ideal test for pre-employment screening of candidates applying for any developer role. A good candidate for any job requiring the use of virtualization will be able to display competency with using Docker, one of the most popular containerization and virtualization platforms. This Docker test can be used to screen large groups of candidates to select only those with the required Docker knowledge to bring in for an interview.
The automation team is testing their background Docker web server containers. They need to cleanly remove the existing containers without leaving any artifacts behind, then start new containers.
Complete the following docker commands to achieve these objectives:
# Gracefully end all processes in the containers host> docker-compose stop # Remove the containers and their anonymous volumes host> docker-compose ____ -v # Start containers in background host> docker-compose up ____ apache php mysql
As part of a load balancing scheme, your company uses multiple virtual machines which can provision and deprovision Docker containers as demand changes.
Complete the docker commands (with no additional arguments) that manage the lifecycle of a docker image.
docker create --name balanced-container company-image
docker ____ balanced-container
docker ____ balanced-container
docker ____ balanced-container
docker ____ balanced-container
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