Kubernets interview questions & Answers

 1. What Exactly is Kubernetes and why it is so popular for container orchestration?

Kubernetes orchestration platform where basically you can manage the life cycle of your deployment, your application in a single environment and then you can basically manage the application life cycle easily even you can do that in non-kubernetes environment as well but here things are there are lot of tools but here things are there are lot of tools like you can manage the configuration very easily using Helm chart and then you can write lot of operators, you can also write operators custom the way you want the things get done. So that is how it's basically is so much popular 

2. We often call Kubernetes self healing, can you just walk me through like what exactly is self-healing?

The idea behind self-healing Kubernetes is simple: If a container fails, Kubernetes automatically redeploys the afflicted container to its desired state to restore operations.

 One of the great benefits of Kubernetes is its self-healing ability. If a containerized app or an application component goes down, Kubernetes will instantly redeploy it, matching the so-called desired state.

 https://kublr.com/blog/reliable-self-healing-kubernetes-explained/

 

3. Lot of people call Kubernetes portable, if it's true then how?

 If we think of portability as meaning that the application can run seamlessly in any environment, the implication is that the user is trying to follow a multicloud strategy — running in multiple public clouds — or needs to run across both a single public cloud and a data center.

 

4. Why do we use pods in kubernetes?

 Containers are designed to run a single process or application unless the application itself spawns child processes.

 https://medium.com/geekculture/what-are-pods-in-kubernetes-861beb65e138

5. How does kubernetes make sure the availability of the Applications?

  If a node fails, the pods running on that node are automatically rescheduled on other healthy nodes, maintaining application availability.

 

6. How does replica sets work?

 

7. Difference between kubernetes deployment and kubernetes services?

 

8. Do you have any experience of upgradding the cluster?

 

https://www.edureka.co/blog/interview-questions/kubernetes-interview-questions/

 

 https://www.knowledgehut.com/interview-questions/kubernetes

https://www.interviewbit.com/kubernetes-interview-questions/

 https://www.codingninjas.com/studio/library/30-kubernetes-interview-questions-for-advanced-part--3