Interview Questions on Kubernetes







1. What are the basic terminologies in kubernetes ?

Ans:

a. container: runtime image of an image
b. nodes: physical or virtual machines in a cluster
c. pods: simple deployable unit in a kubernetes system, which runs containers and deployed inside nodes.
d. cluster: collection of nodes acting as a single unit.
e. master: node that manages worker nodes.
f. workers: nodes that provide the place to run pods.

2. In kubernetes, how to maintain replicas and maintain the desired state at any point in time ?

Ans: Deployment internally uses replicaset to maintain replicas and maintain the desired state at any point in time.

3. How to run one pod per node ?

Ans: Daemonsets are used to run one pod per node.

4. How to run stateful applications ?

Ans: Statefulsets are used to run stateful applications.

5. What is the use of ingress ?

Ans: Ingress in kubernetes can be used as a wrapper for services.

Click on below link for Devops Interview QA book:

https://amzn.to/2YsiZah

6. What is kubernetes volume ?

Ans: Kubernetes volume is an abstraction that allows you to provide persistent data storage units to pods and containers.

7. What are the different types of volumes support by kubernetes ?

Ans:

a. aws elasticblock store
b. azuredisk
c. cephfs
d. nfs
e. many more

8. What is configmaps ?

Ans: Configmaps are a way to decouple application configuration from applications, it makes your
application more portable.

9. How to create configmaps ?


Ans: To create configmaps , we use kubectl create configmap

configmaps can be created from directories, literals or files.

10. How to inspect configmap ?

Ans:


Command: kubectl describe configmaps fresco-config

Click on below link for Devops Interview QA book:

https://payhip.com/b/Mt9p

Comments

Post a Comment

Popular posts from this blog

Python & Shell Scripting Real Time Course Book & Videos

Image
In this e-book we explained every thing with a example so that it will be easy for user to understand. we will also share the  Basic and advanced shell Scripting videos. Below are the topics Basic Shell Scripting: Content 1. Introduction 2. Variables 3. Echo 4. Shell Arithmetic 5. Quotes 6. Exit status 7. Read Statement 8. Wildcards 9. Semicolon 10. Command line argument 11. Redirector Symbol 12. Sort 13. Tr 14. Pipes 15. Filter 16. Process 17. Bc 18. if condition 19. Test command 20. if-else 21. Multilevel if then else 22. Loops 23. for loop 24. While loop 25. Case statement 26. Debug Advanced Shell Scripting  Content 1. /dev/null 2. Local variable 3. Global variable 4. Conditional Execution 5. File Descriptor 6. Functions 7. Dialog utility 8. Trap Command 9. Shift Command 10. Getopts 11. Cut Utility 12. Paste Utility 13. Join Utility 14. Awk Utility 15. Sed Utility 16. Uniq Utility 17. Grep Utility 18. Ex Utility 19. Doing arithmetic with awk 20. Predefined variable of awk 2...
Read more

Top Five Devops Technical Interview QA Books

Image
1. Devops:Git,Jenkins,Chef,Perl & SVN URL:  https://payhip.com/b/Mt9p 2. Devops:AWK,AWS,Docker,Kubernetes & Puppet URL: https://payhip.com/b/Mt9p 3. Devops: Jira,Gradle,Consul & Fortify URL:  https://payhip.com/b/Mt9p 4. Devops: RHEL8 , Docker & Puppet URL:  https://payhip.com/b/Mt9p 5. Devops: Data Science URL:  https://payhip.com/b/VXDRJ
Read more

Linux-Command Hands-On (DF)

Image
  OBJECTIVE: Aim of this practical is to show you all the possible cases of df command in a real time situation.This kind of practical make you expertise in solving big IT problem in minimum effort. 1. Suppose you have list of multiple servers where you have want to check all the local filesystem.How will you overcome with this problem ? Solution: #!/bin/bash for i in $(cat hostname.txt) do ssh $i df -a done For more problems Please click on below link  https://payhip.com/b/247HD
Read more