Docker MCQs with answers Page - 7

Dear candidates you will find MCQ questions of Docker here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.
Share your questions by clicking Add Question

📊 Docker
Q. Which command is used to list all running services in Docker Compose?
  • (A) docker-compose ps
  • (B) docker-compose list
  • (C) docker-compose status
  • (D) docker-compose show
💬 Discuss
✅ Correct Answer: (A) docker-compose ps

Explanation: The 'docker-compose ps' command lists all running services in a Docker Compose setup.

📊 Docker
Q. What is the purpose of 'volumes' in a Docker Compose file?
  • (A) To mount external files into containers
  • (B) To specify environment variables
  • (C) To define services
  • (D) To scale the services
💬 Discuss
✅ Correct Answer: (A) To mount external files into containers

Explanation: 'Volumes' are used in Docker Compose to mount external files or directories into containers.

📊 Docker
Q. Which of the following is NOT a valid service type in Docker Compose?
  • (A) Build
  • (B) Run
  • (C) Network
  • (D) Volume
💬 Discuss
✅ Correct Answer: (B) Run

Explanation: The 'run' service type is not a valid service type in Docker Compose.

📊 Docker
Q. How do you define the network settings for a service in Docker Compose?
  • (A) Using the 'networks' key
  • (B) Using the 'link' key
  • (C) Using the 'connections' key
  • (D) Using the 'network' key
💬 Discuss
✅ Correct Answer: (A) Using the 'networks' key

Explanation: In Docker Compose, the 'networks' key is used to define network settings for a service.

📊 Docker
Q. What is the default network mode for services in Docker Compose?
  • (A) bridge
  • (B) host
  • (C) none
  • (D) overlay
💬 Discuss
✅ Correct Answer: (A) bridge

Explanation: By default, Docker Compose uses the 'bridge' network mode for services.

📊 Docker
Q. Which of the following commands is used to execute a command inside a running Docker Compose container?
  • (A) docker-compose exec
  • (B) docker exec
  • (C) docker-compose run
  • (D) docker-compose command
💬 Discuss
✅ Correct Answer: (A) docker-compose exec

Explanation: The 'docker-compose exec' command is used to execute commands inside a running Docker Compose container.

📊 Docker
Q. How do you configure a custom Docker Compose file name?
  • (A) Using the '--file' flag
  • (B) Using the '--config' flag
  • (C) Using the '--name' flag
  • (D) Using the '--compose' flag
💬 Discuss
✅ Correct Answer: (A) Using the '--file' flag

Explanation: You can configure a custom Docker Compose file name using the '--file' flag.

📊 Docker
Q. Which command is used to check the status of all services in Docker Compose?
  • (A) docker-compose status
  • (B) docker-compose show
  • (C) docker-compose ps
  • (D) docker-compose check
💬 Discuss
✅ Correct Answer: (C) docker-compose ps

Explanation: The 'docker-compose ps' command shows the status of all services in a Docker Compose setup.

📊 Docker
Q. What does the 'docker-compose build' command do?
  • (A) Rebuilds the services defined in the Compose file
  • (B) Starts the services
  • (C) Shows the service status
  • (D) Scales the services
💬 Discuss
✅ Correct Answer: (A) Rebuilds the services defined in the Compose file

Explanation: The 'docker-compose build' command rebuilds the services defined in the Compose file.

📊 Docker
Q. Which command removes stopped containers, networks, and volumes created by Docker Compose?
  • (A) docker-compose prune
  • (B) docker-compose clean
  • (C) docker-compose down --volumes
  • (D) docker-compose destroy
💬 Discuss
✅ Correct Answer: (C) docker-compose down --volumes

Explanation: The 'docker-compose down --volumes' command removes stopped containers, networks, and volumes created by Docker Compose.

Programming Categories

📱 Download Our App

Learn MCQs on the go with our easy-to-use Android app

Get it on Google Play