Answer:- Docker registries provide locations for storing and downloading images. There are two types of registries • Public registry • Private registry Public registries include Docker Hub and Docker Cloud.

Answer:- When a container is run, Docker creates a set of isolated workspaces for the container called namespaces.

Answer:- The Docker command syntax looks like this: docker run [OPTIONS] IMAGE [COMMAND] [ARG...] To run a container, we must incorporate the image on which it is based: docker run [docker_image] We can run containers if the Docker images are locally stored. If they are not, the software will take it from the online registry. Docker can be used to run a container: • Under a specific name • Interactively • And publish container ports • In the background in the detached mode • And mount host volumes • And remove it once the process is complete

Answer:- We can use JSON instead of YAML for a Docker Compose file. When we are using the JSON file for composing, we have to specify the filename with the following command: docker-compose -f docker-compose.json up

Answer:- We can use any specific Docker image for creating a Docker container using the below command: docker run -t -i command name This command not only creates the container but also starts it for us. If we want to check whether the Docker container has been created or not, then we need to have the following command that will list all the Docker containers, along with the host on which the Docker containers run: docker ps -a

Answer:- To stop a Docker container, we need to use the following command: docker stop CONTAINER_ID To restart a Docker container, we need to use the following command: docker restart CONTAINER_ID

Answer:- A Docker image can be built using the following command: $ docker build .

Answer:- We can use the following to stop one or more running Docker containers: docker container stop [OPTIONS] CONTAINER [CONTAINER...]

Answer:- Use docker images with the -a flag to get the image IDs for removal. Then, pass their IDs or tags to docker rmi: List: docker images -a Remove: docker rmi Image Image

Answer:- It depends on which system the Docker is running and the Docker storage driver is being used. For example, on Windows, Docker images are stored by default in: C:ProgramDataDockerDesktop On a Mac, Docker images are stored by default in: ~/Library/Containers/com.docker.docker/Data/vms/0/

Answer:- he ‘docker run’ command runs an image inside the container. It will require the image name. docker run [docker_image]

Answer:- The following command starts a Docker container: docker container start [OPTIONS] CONTAINER [CONTAINER...]

Answer:- Docker Compose typically includes a three-step process: 1. Using a dockerfile to define the app’s environment to facilitate reproduction anywhere 2. Defining the app services in docker-compose.yml so that they can run in an isolated environment together 3. Running docker-compose up

Answer:- To view all the running containers in Docker, we can use the following: $ docker ps