Docker Interview Questions - Part 1

Free Docker tutorial - automationstep...
Today we will learn:
What is Docker
How Docker works
Difference between Virtualization & Containerization
Explain Docker Architecture
Advantages of using Docker
What are Docker Images
What are Docker Containers
What is Dockerfile
What is Docker Compose
References
en.wikipedia.o...)
www.google.co....
www.google.co....
www.google.co....
#DockerInterviewQuestions #DockerTutorials #DockerTraining #DevOpsTools #DevOpsTraining #DockerCommands #DockerForBeginners #DockerFreeTutorials #DockerforDevOps
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[@santhoshsanthu819]

Really very nice videos on Docker interview questions.It covers most of the questions asked during the interview process.

[@RaghavPal]

Glad to know this Santhosh

[@Udzial]

Thank you. For covering this in interview Questions. These basics are very necessary to know.

[@RaghavPal]

Most welcome

[@sankarsan]

You are a legend Raghav. Very down to earth.

[@RaghavPal]

Humbled to see your message Sankarsan

[@gaganashreess4544]

Hey Raghav,the videos are very easy to understand I found it really helpful cleared many doubts which I had thanks for wonderfully videos. A small suggestion could you help to upload the interview preparation for a devops engineer for two or three years of experience and how much we need to know about the docker.

[@RaghavPal]

Glad to hear that
I will plan on this

[@maeli66]

Thank for your very powerful lessons, excellent work

[@RaghavPal]

Most welcome Ishmael

[@JimVincitore]

Great videos! Very cool! Keep the videos coming!

[@RaghavPal]

Thanks Jim, sure

[@OFFICALANIME123]

Very simple yet very informative. You made docker so easy to understand.

[@RaghavPal]

Glad to know this Mohamadbashir

[@halequang9141]

Thank you for very simple and easy to understanding about Docker. Very useful videos.

[@RaghavPal]

You're welcome Ha, Le Quang

[@jagdishrao1662]

Thanks so much sir, good explanation, easy to understand

[@RaghavPal]

Most welcome Jagdish

[@pummysolanki5025]

Very nice videos on Docker, please make some more videos on devops tools and aws cloud

[@RaghavPal]

Thanks, will do!

[@AhmedSaeed-vc7ib]

You did great work (Y)
Can you make interview question for Jenkins as well, It will be appreciated.
Thank you!

[@RaghavPal]

Sure Ahmed, I will do

[@wahidgunit]

Informative

[@RaghavPal]

thanks for watching Abdul

[@bmkrissh8714]

What is the process to push the content to docker hub? listing command example will help as separate video in your docker series

[@RaghavPal]

I will check on that Krissh

[@thimmappanarala996]

Can you create a video on swarm in docker and networking

[@RaghavPal]

I will do it Thimmappa

[@HeyMani92]

I have seen this video It is very helpful to me

[@RaghavPal]

Glad to know this Mani

[@harishharsha729]

thank u so much bro u r so much better than my coaching teacher

[@RaghavPal]

You're welcome Harsha

[@jmzdeepz1771]

How we would ship the container(after running the image). We can only ship the images and run the image to be containerized the platform which we need.(4:53 minute)
Between, nice video. Good job.

[@RaghavPal]

Hi Justine, yes you can take it that way. Thanks for watching

[@jmzdeepz1771]

@@RaghavPal no sir its my doubt. Can we ship a container

[@RaghavPal]

Yes we can

[@jmzdeepz1771]

@@RaghavPalhow to ship a container. Can u help

[@RaghavPal]

Using docker there are two shipping ways:
You can ship the container and the user can directly run the application.
You can also just ship the Dockerfile and the user can build the container by himself and then run the application.
Pls check this - blogs.perficient.com/2014/07/22/two-shipping-ways-of-using-docker/

[@johndyson17]

Really useful videos. Please keep up the good work..

[@RaghavPal]

Thanks for watching John

[@shubhaalvares2325]

extremely beautifully explained.

[@RaghavPal]

Thanks Shubha

[@lakshmibirudaraju2151]

fantastic explanation

[@RaghavPal]

Thanks for watching Gruha

[@shivprasad920]

Nice video... very useful. Thanks for making it.

[@RaghavPal]

thanks for watching Shiv

[@ibknl1986]

Thank you for sharing. Your teaching skills are very good. But I think you can also improve your presentation , like some ppt or so. May Allah (God) guide and bless you.

[@RaghavPal]

Thank you, I will

[@shivmishra4961]

Very helpful

[@RaghavPal]

Thanks for watching Shiv

[@sachinsasidharan2899]

awsome explanation

[@RaghavPal]

thanks for watching Sachin

[@BitsToBytes92]

Thank you!

[@RaghavPal]

You're welcome Jon

[@rizkifaturahman7837]

Thank you master

[@RaghavPal]

You're welcome Rizky

[@Ashfaqshaikh26]

awesome....plz share more details examples ...

[@RaghavPal]

Sure, will do soon

[@ninjafrog8419]

hi Raghav..thank you for the excellent work.
will you be uploading the "sample project | java,maven,docker,github,jenkins" on YT or its part of the Udemy content exclusive?

[@RaghavPal]

Hi some project related videos are on Udmey only.

[@niteshbhalkikar7807]

hello Sir, Is it useful For QA in testing ? And How ?

[@RaghavPal]

Nitesh
Yes, Docker is very useful for QA in testing in several ways:
Improved Efficiency:
Faster Test Setup: Docker containers create isolated environments for your tests, allowing you to set up them up quickly and consistently without worrying about dependencies or conflicting configurations.
Parallel Testing: You can run multiple tests in parallel across different containers, significantly reducing overall testing time.
Streamlined Test Execution: Docker simplifies managing different test environments and configurations, leading to smoother execution and analysis.
Enhanced Reliability and Consistency:
Isolated Environments: Each test runs in its own container, ensuring consistent execution and preventing interference from other tests or the host system.
Controlled Dependencies: All dependencies are packaged within the container, eliminating issues caused by missing or conflicting libraries on the host.
Reproducible Tests: Docker helps achieve reproducible test results by ensuring the exact same environment is used for each test run.
Increased Flexibility and Collaboration:
Easy Sharing and Collaboration: Docker images can be easily shared and deployed across different QA teams and environments, improving collaboration.
Scalability and Portability: Docker containers can be easily scaled up or down to meet testing needs and run on various platforms, improving portability.
Testing Different Scenarios: Docker allows you to quickly create containers with specific configurations, enabling testing of edge cases and different environments.
Here are some specific ways Docker is used in QA:
Running Integration Tests: Docker containers can be used to mimic different services and dependencies needed for integration testing.
End-to-End Testing: Docker containers can be used to create complex multi-component environments for comprehensive end-to-end testing.
Performance Testing: Docker can help isolate test environments and control resource allocation for accurate performance testing.
Regression Testing: Consistent and isolated containers ensure reliable regression testing results.
Testing Microservices: Docker is the ideal platform for deploying and testing microservices architectures.

[@sumanp1638]

Hi Sir, Please cover a topic for kubernetes also..

[@RaghavPal]

Sure, I will do soon Suman

[@rosejune7701]

Thank you for wonderful tutorials..Am sort of stuck when I was doing practice I used to create different directories on my desktop using mkdir and now have been looking online on how to delete all these directorieson my desktop but I don't seem to get a command do to that. and physically I cant seem to see them on my desktop so that I can delete them manually please help

[@RaghavPal]

Hi Roselyne, you can use commands like rm or rm -r, rmdir. Make sure this can remove everything in the folders, So you may want to provide names with wildcards. www.computerhope.com/issues/ch000743.htm

[@lemondeestloeuvredunenfant4633]

in the case of Java Virtual Machine, you have not a second operating system, haven't it ?

[@RaghavPal]

Yes, its not same as docker

[@lemondeestloeuvredunenfant4633]

JVM is virtualization or containerization ?

[@RaghavPal]

pls read this - www.quora.com/Does-Docker-obviate-the-JVM
stackoverflow.com/questions/31506618/linux-container-vs-jvm

[@chinnaachegu5153]

Awesome... How to reach you?

[@RaghavPal]

You can put your comments here or email me - [e-mail]

[@maheedharkukati9606]

Hi sir

[@maheedharkukati9606]

if you don't minf can you please make video on azure devops interview question

[@RaghavPal]

I will plan

[@abdulshaikh6807]

Sir did you take online class

[@RaghavPal]

Hi Abdul, what topics are you looking at.

[@abdulshaikh6807]

Sir i what time to call you or you can reach me 99870 47630 this number pls

[@RaghavPal]

Hi Abdul, I may not be able to follow up on phone. You can reach me at [e-mail]

[@animeshn1555]

Bhai docker padhne nhi interview ans chahiye tha

[@RaghavPal]

Hi Animesh, It will be good to get understanding on this. Still I will plan for a more shallow session