11.) How does Docker Compose enhance CI/CD workflows?
A) By orchestrating multi-container applications
B) By creating Docker images
C) By pulling images from registries
D) By replacing CI/CD tools like Jenkins
12.) Which of the following is a key feature of using Docker in CI/CD pipelines?
A) Automatic database backups
B) Environment consistency across stages
C) Replacement of testing frameworks
D) Elimination of all errors
13.) What is the role of the –cache-from flag in Docker build commands?
A) To clear image cache
B) To build multi-stage images
C) To use cached layers from a previous build
D) To scan images for vulnerabilities
14.) Which file format is typically used to define CI/CD pipelines in GitLab CI/CD?
A) gitlab-ci.yml
B) pipeline.yml
C) docker-compose.yml
D) config.json
15.) What role does Docker Swarm play in a CI/CD pipeline?
A) Monitoring containers
B) Orchestrating containers for deployment
C) Building Docker images
D) Storing container logs
16.) What is the primary benefit of using Docker Hub in a CI/CD process?
A) Logging container activity
B) Automating database migrations
C) Providing a centralized location for Docker images
D) Enabling container resource limits
17.) Which of the following is a common step in Docker-based CI/CD pipelines?
A) Container orchestration
B) Image scanning for vulnerabilities
C) Image version tagging
D) All of the above
18.) Why is tagging Docker images important in CI/CD pipelines?
A) To improve build speed
B) To uniquely identify and version images
C) To encrypt image layers
D) To reduce image size
19.) How can Docker ensure application rollback in a CI/CD pipeline?
A) By saving previous container logs
B) By creating snapshots of running containers
C) By using a versioned Docker image from the registry
D) By monitoring container health
20.) What is the purpose of the docker-compose.override.yml file?
A) To replace Docker Compose
B) To define development-specific configurations
C) To deploy containers
D) To automate image builds
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