{"id":6893,"date":"2019-10-07T09:36:34","date_gmt":"2019-10-07T09:36:34","guid":{"rendered":"https:\/\/www.devopsschool.com\/blog\/?p=6893"},"modified":"2021-11-16T07:03:48","modified_gmt":"2021-11-16T07:03:48","slug":"docker-interview-questions-and-answer-part-3","status":"publish","type":"post","link":"https:\/\/www.devopsschool.com\/blog\/docker-interview-questions-and-answer-part-3\/","title":{"rendered":"Docker Interview Questions and Answer Part – 3"},"content":{"rendered":"\n
  1. Whats is docker?<\/li>
  2. Difference between container & VMs?<\/li>
  3. Difference between Docker & Virtualization?<\/li>
  4. Difference between container and image?<\/li>
  5. How image builds?<\/li>
  6. What are image layers?<\/li>
  7. How image layers work?<\/li>
  8. What is overlayfs?<\/li>
  9. Where the image layes can be found in which directory?<\/li>
  10. How can we check the content of each layer?<\/li>
  11. How to check the layers stacked with image?<\/li>
  12. What is Union Mount & AUFS?<\/li>
  13. Why use Union mount system for Docker?<\/li>
  14. What are the 3 different directories in \/var\/lib\/docker\/aufs?<\/li>
  15. How to run an image?<\/li>
  16. How to tag an image?<\/li>
  17. How to Link one container with another?<\/li>
  18. How do you sequence the containers? A first then B should execute after that?<\/li>
  19. How to create a volume in docker container to store data?<\/li>
  20. How to mount a local directory into a container?<\/li>
  21. How to expose a port no to access container?<\/li>
  22. What is entrypoint in docker?<\/li>
  23. What is dockerfile?<\/li>
  24. Difference between ADD & COPY parameters in dockerfile?<\/li>
  25. How to create a bridge in container?<\/li>
  26. How a container gets an internal IP?<\/li>
  27. Can we check the process of a container inside as well as outside the container?<\/li>
  28. Can we check the container process on docker host?<\/li>
  29. How kernel isolates to run the container and how resources managed by the kernel?<\/li>
  30. What is namespace and cgroups?<\/li>
  31. What is docker-compose and docker-swarm?<\/li>
  32. How you can give different network IP to the container?<\/li>
  33. What are the parameters of dockerfile?<\/li>
  34. Is there any windows container also available?<\/li>
  35. How to stop a container?<\/li>
  36. How to run a container in background?<\/li>
  37. How to go inside a container if container is running in background?<\/li>
  38. How to check running containers?<\/li>
  39. How to remove an image?<\/li>
  40. How to run an image which is in tar format?<\/li>
  41. Command to check the process of a container?<\/li>
  42. How to check resource utilisation of a container<\/li>
  43. How to create an image?<\/li>
  44. How to save changes of a container?<\/li>
  45. What are registries?<\/li>
  46. Difference between docker commands: up, run & start?<\/li>
  47. Can we run more than one process in a container?<\/li><\/ol>\n\n\n