Docker Secrets MCQs with answers Page - 3

You will find multiple-choice questions (MCQs) related to #Docker Secrets here. Go through these questions to prepare effectively for your upcoming exams and interviews.

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Q. What is the purpose of Docker secrets?

  • (A) To manage Docker volumes
  • (B) To store sensitive data like passwords securely
  • (C) To encrypt Docker images
  • (D) To log Docker events

A

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Q. Which Docker feature must be enabled to use secrets?

  • (A) Docker Engine
  • (B) Docker Compose
  • (C) Docker Swarm
  • (D) Docker Machine

A

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Q. Where are Docker secrets stored on a node?

  • (A) /etc/docker/secrets
  • (B) In the image metadata
  • (C) In environment variables
  • (D) In RAM and never persisted to disk

A

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Q. How can secrets be accessed inside a container?

  • (A) Through environment variables
  • (B) Via files mounted at /run/secrets/
  • (C) From a secret API endpoint
  • (D) Using the `docker secrets read` command

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Q. What happens to Docker secrets when a container stops?

  • (A) They are saved for reuse
  • (B) They are written to disk
  • (C) They are lost immediately
  • (D) They are securely removed from memory

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Q. Which command is used to create a new Docker secret?

  • (A) docker secret create
  • (B) docker secret init
  • (C) docker create secret
  • (D) docker secrets new

A

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Q. Which of the following is a valid syntax to create a secret from a file?

  • (A) docker secret create my_secret < file.txt
  • (B) docker secret create file.txt my_secret
  • (C) docker secret add my_secret file.txt
  • (D) docker secret --add my_secret file.txt

A

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Q. In which directory are secrets mounted inside a running container?

  • (A) /secrets
  • (B) /docker/secrets
  • (C) /etc/secrets
  • (D) /run/secrets

A

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Q. Can a secret be used in a standalone Docker container?

  • (A) Yes, always
  • (B) Only on Linux hosts
  • (C) No, secrets are only supported in Docker Swarm mode
  • (D) Only if the container has root access

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Q. What is the default file permission for Docker secrets inside containers?

  • (A) 0777
  • (B) 0644
  • (C) 0600
  • (D) 0400

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