Docker MCQs with answers Page - 27

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Q. Which of the following options is correct about Docker images?

  • (A) Docker images are immutable and cannot be modified once created
  • (B) Docker images are ephemeral and get deleted once the container is stopped
  • (C) Docker images are temporary storage areas for containers
  • (D) Docker images are used to store container logs
💬 Discuss
✅ Correct Answer: (A) Docker images are immutable and cannot be modified once created
Explanation: Docker images are immutable and cannot be modified once created. If changes are needed, a new image must be built.

Published by Shiva Ram ⭐ 30.44K Points at 13-Feb-2025 10:12 pm in Docker

Q. Which command is used to check the logs of a running Docker container?

  • (A) docker logs container_name
  • (B) docker inspect container_name
  • (C) docker stats container_name
  • (D) docker ps container_name
💬 Discuss
✅ Correct Answer: (A) docker logs container_name
Explanation: 'docker logs container_name' shows the logs of a running container.

Published by Vinay ⭐ 28.75K Points at 13-Feb-2025 10:12 pm in Docker

Q. Which of the following is true about Docker Compose?

  • (A) Docker Compose allows you to run multiple containers in a single command
  • (B) Docker Compose is used to monitor the health of Docker containers
  • (C) Docker Compose is used to manage Docker images
  • (D) Docker Compose can only be used for building Docker images
💬 Discuss
✅ Correct Answer: (A) Docker Compose allows you to run multiple containers in a single command
Explanation: Docker Compose allows you to define and manage multi-container Docker applications in a single file and run them with a single command.

Published by Vijay Sangwan ⭐ 28.62K Points at 13-Feb-2025 10:12 pm in Docker

Q. What is the purpose of the 'docker volume' command?

  • (A) To manage Docker containers
  • (B) To manage persistent storage for Docker containers
  • (C) To list Docker images
  • (D) To create new networks in Docker
💬 Discuss
✅ Correct Answer: (B) To manage persistent storage for Docker containers
Explanation: 'docker volume' is used to create, list, and manage volumes in Docker, which are used for persistent data storage.

Published by Vikash Gupta ⭐ 33.56K Points at 13-Feb-2025 10:12 pm in Docker

Q. Which of the following Docker commands is used to view resource usage statistics for a container?

  • (A) docker top container_name
  • (B) docker stats container_name
  • (C) docker inspect container_name
  • (D) docker resource container_name
💬 Discuss
✅ Correct Answer: (B) docker stats container_name
Explanation: 'docker stats container_name' provides resource usage statistics for a running container.

Published by Rakesh Kumar ⭐ 28.44K Points at 13-Feb-2025 10:12 pm in Docker

Q. Which command is used to build a Docker image from a Dockerfile?

  • (A) docker build -t image_name .
  • (B) docker create image_name
  • (C) docker run -d image_name
  • (D) docker deploy image_name
💬 Discuss
✅ Correct Answer: (A) docker build -t image_name .
Explanation: 'docker build -t image_name .' builds a Docker image from a Dockerfile located in the current directory.

Published by Rakesh Kumar ⭐ 28.44K Points at 13-Feb-2025 10:12 pm in Docker

Q. Which Docker component manages the network configuration of containers?

  • (A) Docker daemon
  • (B) Docker volume
  • (C) Docker Swarm
  • (D) Docker network
💬 Discuss
✅ Correct Answer: (D) Docker network
Explanation: Docker network manages the network configuration for containers, including creating isolated networks for communication between containers.

Published by Vijay Sangwan ⭐ 28.62K Points at 13-Feb-2025 10:12 pm in Docker

Q. Which Docker command can be used to check the available Docker networks?

  • (A) docker network list
  • (B) docker network show
  • (C) docker network ls
  • (D) docker network inspect
💬 Discuss
✅ Correct Answer: (C) docker network ls
Explanation: 'docker network ls' lists all the available networks in Docker.

Published by Shiva Ram ⭐ 30.44K Points at 13-Feb-2025 10:12 pm in Docker

Q. What does the 'docker tag' command do?

  • (A) Creates a new Docker image
  • (B) Renames a Docker container
  • (C) Tags a Docker image with a version or label
  • (D) Runs a Docker container
💬 Discuss
✅ Correct Answer: (C) Tags a Docker image with a version or label
Explanation: 'docker tag' is used to assign a tag (like a version) to an existing Docker image.

Published by Vijay Sangwan ⭐ 28.62K Points at 13-Feb-2025 10:12 pm in Docker

Q. Which of the following is true about Docker containers?

  • (A) Docker containers are lightweight and can be started and stopped quickly
  • (B) Docker containers run as virtual machines on the host OS
  • (C) Docker containers require separate operating systems
  • (D) Docker containers are permanently linked to the host system
💬 Discuss
✅ Correct Answer: (A) Docker containers are lightweight and can be started and stopped quickly
Explanation: Docker containers are lightweight, isolated environments that share the host OS kernel, which allows them to start and stop quickly.

Published by Vijay Sangwan ⭐ 28.62K Points at 13-Feb-2025 10:12 pm in Docker

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