Docker Course
Docker
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Beginner

Beginner Questions

Definition

Introductory interview questions designed to verify a candidate understands the fundamental concepts of Containerization, Images vs Containers, and the basic CLI commands.

Explain Like I'm New

Proving you understand what Docker actually is, rather than just knowing how to copy-paste commands from StackOverflow.

Real World Example

Question: 'Explain the difference between a Docker Image and a Docker Container. Use an analogy.'

Common Use Cases

  • •Junior Developer Interviews

Interview Questions

basic

  • What is the difference between `docker stop` and `docker rm`?

intermediate

  • Explain the fundamental difference between Docker and a Virtual Machine (VM).

Flash Cards

Question

Stop vs RM?

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Answer

`stop` gracefully halts the running process but leaves the container and its data intact on the hard drive. `rm` permanently deletes the container entirely.

Question

Docker vs VM?

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Answer

A VM virtualizes the hardware and runs a full, heavy, independent Guest Operating System. Docker virtualizes the OS, sharing the Host machine's Kernel, making containers exponentially lighter, faster, and less resource-intensive.