Docker Interview Questions 2025 | Docker Interview Questions and Answers | MindMajix

Ace your Docker interview. This video covers Docker interview questions and answers for freshers and experienced candidates. Learn about containers vs images, Dockerfile basics, Docker Compose, Swarm vs Kubernetes, volumes & bind mounts and more. We'll cover everything from basic to advanced and scenario-based questions to help you clear Docker interview.

👉 Below are the concepts we covered in this video on Top 30 Docker Interview Questions and Answers:
✅ Docker Interview Questions For Freshers:
00:00:00 Introduction
00:01:35 What is Docker
00:02:38 What are the key components of Docker
00:04:38 What is a Docker Hub
00:05:23 What is a Docker image
00:05:51 How is a Docker container different from a virtual machine(VM)
00:10:07 Explain what is Docker by giving an example
00:13:00 How do you create and runa a Docker image for a java application
00:14:19 How do you list running Docker containers
00:15:19 How do you remove a running container
00:16:32 What is Docker-compose and how is it useful for software developers

✅ Docker Interview Questions For 1 Year Experience:
00:17:08 Tell us how you have used Docker in your past position
00:18:07 What is Docker swarm
00:18:37 What are the various states that a Docker container can be in at any given point in time
00:18:59 How do i run multiple copies of a compose file on the same host
00:19:27 What are the key distinctions between daemon level logging and container level logging in Docker
00:20:04 What are Docker networks and why are they important
00:21:47 How do you debug a running docker container
00:23:34 How do you share a Docker image with others
00:24:38 What is the difference between Docker volumes and bind mounts
00:25:01 Can you tell something about Docker namespace

✅ Advanced Docker Interview Questions:
00:25:39 What is Docker swarm and how does it differ from Kubernetes
00:27:29 How can you secure Docker containers
00:29:09 What factors determine the maximum number of containers you can run on the host for a microservices app
00:29:47 Explain the container orchestration and why we need to use it
00:31:37 How do you debug issues in a Docker container
00:33:56 Are you aware of load balancing across containers and hosts? How does it work
00:34:39 How will you monitor Docker in production
00:35:17 How do you perform live migration of Docker containers between hosts
00:35:55 How do you share data between containers in Docker
00:36:30 How to use Docker for multiple application environments

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