Docker Interview Questions and Answer Part – 29

With Docker for Windows, what container types can you run? Only Windows Windows and macOS Windows and Linux (Ans) Only Linux Which of the following is an accurate statement about…

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Docker Interview Questions and Answer Part – 28

What is a tag? A reference to a registry A reference to a repository A reference to a specific image in a repository (Ans) A reference to a specific image…

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Docker Interview Questions and Answer Part – 27

By default, what happens to a Docker Container when the process it is running exits? The Container exits. (Ans) The Container reboots and restarts the process. The Container performs a…

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Docker Interview Questions and Answer Part – 24

Which of the following tasks can Docker Cloud perform? Create nodes None of these Start and stop services All of these (Ans) Create stacks What is the role of Docker…

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Docker Interview Questions and Answer Part – 23

Which of the following are top-level keys in a stack file (Compose v3 file)? Version, deployments, networks, volumes Version and services Version, services, networks, volumes (Ans) Services, pods, networks, volumes…

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Docker Interview Questions and Answer Part – 22

Which of the following is a recommended best practice? Keep your images small (Ans) Never use the latest image in a repo Use large images containing lots of tools Only…

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Docker Interview Questions and Answer Part – 21

Which of the following is needed to deploy a Docker Stack? Compose v2 file format Kubernetes Compose v3 file format Docker Cloud (Ans) What is the name of the configuration…

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Docker Interview Questions and Answer Part – 20

What type of software deals with running (placement) applications on a given node in the cluster? Placer VM runtime Container runtime Provisioner Scheduler (Ans) What is the net effect of…

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Docker Interview Questions and Answer Part – 19

What can you use to run multiple containers from a single YAML file? Dockerfile docker run docker-compose (Ans) docker run containers.yml Which of the following is not a benefit of…

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Docker Interview Questions and Answer Part – 18

If you want to perform maintenance on a node, to what availability should you change it? Ready Down Drain (Ans) Pause Active Assuming you have a stack called APIS, what…

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Docker Interview Questions and Answer Part – 17

If you run docker network ls and do not see a network that you’re looking for, what is the most likely culprit?culprit? That node is not a worker node. That…

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Docker Interview Questions and Answer Part – 16

Which of the following will upload a new stack to your Docker Cloud account? docker-cloud stack create docker-cloud.yml docker-cloud stack create -f docker-cloud.yml (Ans) docker-cloud stack create -f dockerfile docker…

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Docker Interview Questions and Answer Part – 15

Which fundamental networking technology does the native (local) overlay driver leverage when creating multi-host container networks? VLAN Token Ring VXLAN (Ans) FCoE You need to create a singe container network…

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Docker Interview Questions and Answer Part – 14

What is the function of this command? docker search apache/ubuntu It will search your local Docker client environment for images related to either apache or ubuntu. It will search Docker…

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Docker Interview Questions and Answer Part – 3

Whats is docker? Difference between container & VMs? Difference between Docker & Virtualization? Difference between container and image? How image builds? What are image layers? How image layers work? What…

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Docker Interview Questions and Answer Part – 2

What is Docker compose? What is Docker server version? What are the advantages of Docker? How do you setup Docker in Jenkins in production environment? How do create Docker image…

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Docker Interview Questions and Answer Part – 1

What happens when you run docker run hello-world? How do you run a container? What do you see when you run docker ps? What docker commit does? when will you use it? Explain what…

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How to Remove all Docker Containers, all Images, all Volumes, and all Networks

How to stop all Docker Containers To delete all containers including its volumes use How to remove all stopped Docker Containers How to delete all Docker Images Removing All Unused…

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Docker Error: JOB FOR DOCKER.SERVICE FAILED BECAUSE THE CONTROL PROCESS EXITED WITH ERROR CODE

[root@localhost ~]# systemctl restart docker Job for docker.service failed because the control process exited with error code. See “systemctl status docker.service” and “journalctl -xe” for details. [root@localhost ~]# [root@localhost ~]#…

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Dockerfile Lab Exercise – 1

Dockerfile Lab Exercise – 1 1. Write a dockerfile which has base ubuntu latest and apache latest. Run the apache default when you create a containers and apache welcome page…

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