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Docker & K8s
DevOps
Docker & K8s
Curated Docker & K8s interview questions with detailed answers.
30
questions
updated weekly
Junior
10
Middle
12
Senior
8
Docker & K8s questions
30 / 30 shown
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Newest
›
What is Docker and what problem does it solve?
Junior
#Devops
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What is the difference between containers and virtual machines?
Junior
#Devops
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What is the difference between Docker images and containers?
Junior
#Devops
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›
What is a Dockerfile and how do you write one?
Junior
#Devops
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What are the essential Docker commands?
Junior
#Devops
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How does data persistence work with Docker volumes?
Junior
#Devops
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How does Docker networking and port mapping work?
Junior
#Devops
Details →
›
What is Docker Compose and why use it?
Junior
#Devops
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What is a Docker registry and how do you use it?
Junior
#Devops
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What are the benefits of containerizing applications?
Junior
#Devops
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›
How do Docker image layers and build caching work?
Middle
#Devops
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›
What are multi-stage builds and why use them?
Middle
#Devops
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How do Docker networks work in depth?
Middle
#Devops
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›
What are advanced Docker Compose features?
Middle
#Devops
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›
What are Docker best practices for production?
Middle
#Devops
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›
What is container orchestration and why is it needed?
Middle
#Devops
Details →
›
How do you handle configuration and secrets in Docker?
Middle
#Devops
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How do you debug and troubleshoot Docker containers?
Middle
#Devops
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How do you manage container resources (CPU and memory)?
Middle
#Devops
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›
What is Kubernetes and what are its core concepts?
Senior
#Devops
Details →
›
How do you secure Docker containers?
Senior
#Security
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›
How does Docker work under the hood?
Senior
#Devops
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›
How do you deploy Docker containers to production?
Senior
#Devops
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›
What are the alternatives to Docker and the container ecosystem?
Senior
#Devops
Details →
›
What is the build context and why use a .dockerignore file?
Middle
#Devops
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How do Docker health checks work and why are they important?
Middle
#Devops
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›
What is the difference between ENTRYPOINT and CMD?
Middle
#Devops
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›
What is Docker Swarm and how does it compare to Kubernetes?
Senior
#Devops
Details →
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How do you optimize Docker image size and build performance?
Senior
#Devops
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›
How do you handle logging and monitoring for containers?
Senior
#Devops
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