Kubernetes Interview Questions | Kubernetes Interview Questions and Answers | Kubernetes DevOps | 05

Kubernetes Interview Questions | Kubernetes Interview Questions and Answers | Kubernetes DevOps
Hey Folks,
Welcome back to another video in the series of DevOps Interviews. This is the 19th video in this series. This is a complete 28-minute-long technical video purely on #kubernetes #devops #devopsinterview etc. Pick a pen and paper, and note down the questions we have covered in this video.
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[@bikumillan697]

Most of the questions are just defination .....I was expecting questions more on real-time issue in Kubernetes ...well last 9 min questions are really good

[@prerna4497]

Thanks for creating these videos! It really help to get an idea about interview questions.

[@LogicOpsLab]

Glad it was helpful!

[@user-wv2hk6dg2h]

it is really awesome how you explain complicated things in a simple way

[@LogicOpsLab]

Means a lot 🙏🏻

[@suryakantsamal2495]

It will be great if you can come with some more scenario-based questions 🙂. Thank you for all the efforts you are putting to help people.

[@LogicOpsLab]

Sure, will announce a dedicated series on this.

[@nehagahilot1517]

Whoaaaa!! How come I didn't find this interview before, amazingggg!! 🤯🤯

[@LogicOpsLab]

Glad you liked it!

[@sagarahire-ys3uj]

I hope lot more are coming...thanks for doing this

[@LogicOpsLab]

Yes, working on it.

[@mayurmadan7956]

hey ravish ,we really apricate for your effort, you are doing a great job which is really help people like me, who is trying to switch from Non-IT to IT .My request is please make a series on Python for Devops because i am not finding any relevant topic on free platform to refer or whatever is available its out of box for non IT background people like me.

[@LogicOpsLab]

There are already two courses on my channel 1) Python interview questions for DevOps kzbin.info/www/bejne/apfIlHhvbdWIgpI 2) Python for Beginners kzbin.info/www/bejne/eXe5e4Ksd8d9nMk

[@mayurmadan7956]

@@LogicOpsLab thank you but is it sufficient for fresher who want to switch in devops .

[@LogicOpsLab]

@@mayurmadan7956 Indeed. For Python, yes!

[@rubymaria04]

U r doing superb job for devops jobseekers 🎉❤😊😅

[@LogicOpsLab]

Appreciate your support 🙏🏻🙏🏻

[@tejasmahakalkar4779]

How to answer the question like how to move from monolithic to microservice and containerised the application?

[@srinu9054]

Thank YOU

[@LogicOpsLab]

Welcome!

[@imharry404]

Great😊😊

[@LogicOpsLab]

Thanks, Hariom.

[@Alpha-kt6hc]

I think "servicemesh" was the one word answer for how does kubernetes helps with microservice architecture. And Loadblancer IP and External IP are completely different concepts, External IP is a service and Loadbalancer IP is an IP address that keeps on changing usually.

[@LogicOpsLab]

On the context of "how does kubernetes helps with microservice architecture." The answer can be multifold, it depends how a person is explaining it. Here's how Kubernetes helps with microservice architecture: Containerization: Kubernetes is built around containers, which are an ideal packaging format for microservices. Containers package the application and its dependencies into a single unit, making it easy to deploy and manage microservices independently. Scaling: Kubernetes enables automatic scaling of microservices. You can define scaling rules and policies for individual microservices based on factors like CPU utilization, memory usage, or custom metrics. This ensures that your microservices can handle varying workloads efficiently. Service Discovery and Load Balancing: Kubernetes provides built-in service discovery and load balancing. Microservices can communicate with each other using service names, and Kubernetes takes care of routing traffic to the appropriate instances. This simplifies communication between microservices. Resource Isolation: Kubernetes enforces resource isolation and resource quotas. Each microservice can be allocated specific CPU and memory resources, ensuring that one service does not adversely affect others. Now, this is not the complete list, there can be several other aspects, as well..

[@sivaboorla6843]

Could you give me clarity in kubernetes that we have a single master node. The node is automatically terminated then is there any possibility to get back using ETCD.

[@LogicOpsLab]

Here's a simplified overview of the recovery process: Detection: When the master node becomes unavailable, whether due to a crash or other reasons, the Kubernetes nodes and other components in the cluster will detect the loss of connectivity to the control plane. Failover: Kubernetes has a mechanism called "leader election" that allows other nodes to elect a new master from the available nodes. This process is often managed by tools like kube-controller-manager and kube-scheduler. A new master node will be elected, and control plane services will be rescheduled on this new master. Etcd Recovery: The etcd cluster may also need to recover if the etcd nodes on the failed master were part of the etcd cluster. Etcd is designed for high availability and can handle failures, but the recovery process may take some time. If the etcd cluster suffered a quorum loss (e.g., losing the majority of its nodes), you may need to intervene manually to restore the quorum. Cluster Stability: Once a new master is elected and etcd is stable again, the Kubernetes cluster will regain its stability, and you can resume managing and deploying applications in the cluster. It's important to note that the specific steps and configurations for recovery may vary depending on your Kubernetes setup, including the choice of networking, cloud provider, and other infrastructure components.

[@sagarahire-ys3uj]

i think for FB question..federated cluster will make more much sense there having a set of similar microservices (domain wise or relatability) they might run on one single cluster and likewise we'll have lot of clusters also this microservices will also have their replicas running and we can concept like Node affinity

[@LogicOpsLab]

Can you please help me with the timestamp?

[@sagarahire-ys3uj]

@@LogicOpsLab FB question came on 20:40 but m not able to track for federated cluster

[@sumitagrawal79]

For some questions, the candidate is actually typing the question on google in run time and he is smart enough to buy some time to get the answers....

[@LogicOpsLab]

Could be possible, people are getting smarter these days.

[@xylyx_]

Wonder how did he clear CKA!

[@LogicOpsLab]

Good question.

[@SumitKumar-uq3dg]

Ha ha. I also felt he was simply telling anything. Many places he wasnt even clear

[@akashshrivastav4658]

Agree 💯 , even I feel more knowledgeable without CKA certification😅😅 , the way he's answering I am afraid 😅

[@Portnacelle]

Man I can hardly understand the candidate...I tried with captions and the captions engine is just as confused :(

[@LogicOpsLab]

Don't worry, you aren't losing out on much. He is not answering properly, plus most of his answers did not make sense.

[@sabapathan8018]

@@LogicOpsLab yes, could you please make videos on the same interview which will answer properly for us

[@LogicOpsLab]

@@sabapathan8018 Yes, started a separate series for the same.

[@neerajkumar81]

@@LogicOpsLab > plus most of his answers did not make sense. I understand his English was not very clear, but his answers were satisfactory. I found that he had knowledge of everything that you asked..it's just that he couldn't frame his answers properly.

[@LogicOpsLab]

@@neerajkumar81 The stakes were high for this position.

[@Alpha-kt6hc]

If the guy has cleared CKA then why did you ask him questions like: Do you know what etcd is? He obviously knows that much, probably knows etcdl commands too.

[@NewLearningEveryday]

Trained hirer here. Have you ever heard about proxy certifications? In order to find out if the candidate is real or not we always start with basic ones and then increase the difficulty level. I think he's doing just fine. Also, he had put 32 videos here before some dumbass girl threatened his job. This used to be one stop solution for junior to mid senior level interviews. Gone are the days. 😢😢

[@LogicOpsLab]

Thanks for the feedback.

[@subhasismandal4180]

The candidate is not explaining properly in simpler terms , it's difficult to understand for the interviewer also i think to understand

[@LogicOpsLab]

True. He was rejected, and wasn't able to clear the interview.

[@subhasismandal4180]

@@LogicOpsLab can you please guide me, I am 1 years of exp. and have hands on exp on aws eks with both node as a service and fargate as a service (serverless), api gateway,lambda ,R53 and various Aws services, have done linux configurations inside ec2 and have self learned on docker and k8s and know a bit of shell scripting also , I want to switch from this job because i am not getting challenging work and brainstorming projects

[@kirankadavergu6145]

better to keep only questions, delete answers. I am forgetting what I learnt till date by listening his answers 😅

[@LogicOpsLab]

Hi, Kiran. Please comment down the correct answers as feedback. This will help other folks, as well.

[@pradipgudale2000]

Candidate dont have much experience in kubernet, he is not giving straight forward answer, rather he is creating story and cover the answers.

[@LogicOpsLab]

Thanks for the feedback

[@rohanekar]

Banda select hua ka ?

[@LogicOpsLab]

What do you think?

[@swapnilsingh7170]

Even the English translation failed to get his answers 😭

[@LogicOpsLab]

At a few places, yes.

[@kirankadavergu6145]

Simply he told nonsense for the question how the docker and Kubernetes related😂 listen with 0.75x speed you can listen some stuff

[@LogicOpsLab]

Hi, Kiran. Please comment down the correct answers as feedback. This will help other folks, as well.

[@jaydaemon_con1574]

I can’t understand the guys English

[@LogicOpsLab]

Please switch on the subtitles