Member-only story

Docker & Kubernetes: Basic To Advanced Interview Questions!

Rsprasangi
DevPulse
Published in
7 min readDec 12, 2024

Have you ever been in a tech interview where you’re asked about Docker or Kubernetes, and the questions feel like a test of your patience rather than your skills?

Let’s break down basic to advanced , commonly asked questions about containerization and orchestration – with real-world insights to make it stick.

📍What is Docker, and how does it work?

Docker is a containerization platform that packages applications and dependencies together in lightweight, portable containers. Think of containers as “mini-VMs” without the overhead – perfect for consistent environments across dev, test, and production.

🔹How it works: Docker uses a client-server architecture. The Docker engine creates containers using images (templates) built with Dockerfiles. It ensures that “it works on my machine” translates to every environment.

📍How do containers differ from virtual machines?

🔹VMs: Heavy, run entire operating systems, and require a hypervisor.

🔹Containers: Lightweight, share the host OS kernel, and are much faster to start/stop.

Real-life analogy: If a VM is a fully furnished house, a container is like renting a single room with shared utilities.

📍Explain the concept of Docker Compose.

Docker Compose is like your orchestra conductor for multi-container apps. You define your app’s services…

Create an account to read the full story.

The author made this story available to Medium members only.
If you’re new to Medium, create a new account to read this story on us.

Or, continue in mobile web

Already have an account? Sign in

DevPulse
DevPulse

Published in DevPulse

DevPulse is your go-to publication for cutting edge technical insights, tutorials, and industry trends. Stay ahead in the fast-paced world of development with in-depth articles on coding, software engineering, and the latest tech innovations. Tune into the pulse of technology!

Rsprasangi
Rsprasangi

Written by Rsprasangi

DevOps | AWS | Sharepoint | Splunk Enterprise | Service Delivery & IT Operations | ITSM | MBA- Project & Operations Management

No responses yet

Write a response