How can you control access to images stored in a private Docker Registry?
By using encryption to secure images during transmission
By implementing authentication and authorization mechanisms within the registry
By configuring network firewalls to restrict access by IP address
By regularly updating the registry software to patch vulnerabilities
What is a key benefit of using a private Docker Registry in a continuous integration/continuous deployment (CI/CD) pipeline?
It enables faster and more controlled image distribution within the pipeline.
It allows for easier public image discovery.
It eliminates the need for image version control.
It simplifies the process of building images from source code.
When might a bind mount be a suitable choice for data persistence in Docker?
When you need to share data between multiple Docker containers running on the same host.
When you want to leverage the scalability and redundancy of cloud storage.
When you need to share sensitive configuration files between the host and a container.
When you require data portability across different Docker environments.
Which Dockerfile instruction is used to define a health check for a container?
CHECK
RUN
HEALTHCHECK
EXPOSE
What is the default networking mode in Docker Compose when no explicit network configuration is provided?
Bridge
Host
None
Overlay
In a multi-stage Docker build, how can you refer to a specific stage by its index?
By using a numerical index starting from 0.
By using the stage's name.
By using a numerical index starting from 1.
It's not possible to refer to stages by index.
How does Docker Swarm achieve network communication between containers on different nodes?
By creating an overlay network that spans across all nodes in the cluster
By relying on the host operating system's networking capabilities
By creating a single, shared network interface for all containers
By establishing secure tunnels between individual containers
Which command is used to initialize a Docker Swarm?
docker swarm create
docker swarm up
docker swarm init
docker swarm start
Which of the following is a key characteristic of bind mounts in Docker?
They are the preferred method for managing sensitive data within Docker containers.
They directly link a directory on the host machine to a container's filesystem.
They are stored within the Docker's internal storage system.
They provide a way to share data between containers.
What is the primary advantage of using multi-stage builds in Docker?
To simplify the process of building complex applications.
To reduce the size of the final Docker image.
To enable parallel execution of build steps.
To improve network performance during the build process.