Docker MCQs with answers Page - 64

Here, you will find a collection of MCQ questions on Docker. Go through these questions to enhance your preparation for upcoming examinations and interviews.

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A

Admin • 833K Points
Coach

Q. Can Docker secrets be used outside of Swarm mode?

  • (A) Yes, always
  • (B) No
  • (C) Only with Kubernetes
  • (D) Only with Docker Desktop

A

Admin • 833K Points
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Q. How are secrets transmitted between manager and worker nodes?

  • (A) Plain text
  • (B) Base64 encoded
  • (C) Encrypted over TLS
  • (D) Using UDP broadcast

A

Admin • 833K Points
Coach

Q. Can a secret be mounted to multiple containers in a service?

  • (A) Yes
  • (B) No
  • (C) Only with Compose v2
  • (D) Only on worker nodes

A

Admin • 833K Points
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Q. Which Compose file version supports Docker secrets?

  • (A) 2
  • (B) 2.1
  • (C) 3.1 and above
  • (D) All versions

A

Admin • 833K Points
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Q. What is required to use secrets in a Compose file?

  • (A) Define secrets in the file and mark external: true
  • (B) Set secret=true in environment
  • (C) Define them as environment variables
  • (D) Create secret in the container first

A

Admin • 833K Points
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Q. What is a potential risk of using environment variables instead of secrets?

  • (A) They are stored encrypted
  • (B) They are not available inside containers
  • (C) They can be seen in process lists or logs
  • (D) They are too complex to implement

A

Admin • 833K Points
Coach

Q. How do you inspect a Docker secret’s metadata?

  • (A) docker inspect secret <name>
  • (B) docker secret inspect <name>
  • (C) docker secret show <name>
  • (D) docker view secret <name>

A

Admin • 833K Points
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Q. Can secrets be shared across services?

  • (A) Yes, if explicitly assigned
  • (B) No
  • (C) Only with external config
  • (D) Only with shared volumes

A

Admin • 833K Points
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Q. Which of the following is NOT true about Docker secrets?

  • (A) They are encrypted in transit
  • (B) They can be updated directly
  • (C) They are mounted as read-only files
  • (D) They require Docker Swarm

A

Admin • 833K Points
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Q. What is the purpose of Docker configs?

  • (A) To store encrypted passwords
  • (B) To manage application source code
  • (C) To store non-sensitive configuration data
  • (D) To log container output

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