Part 8 | Most Important CKA Question | Service DNS Resolution | Certified Kubernetes Administrator

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Question 15 - Create a Nginx pod dns-resolver using image nginx, expose it internally with a aservice called dns-resolver-service.
Check if service name is resolvable from within the cluster.
Use the image busybox:1.28 for dns lookup
Save the result in /root/nginx.svc
Question 14 - Create a new user “ajeet”. Grant him access to the cluster. User “ajeet” should have permission to create, list, get, update and delete pods. The private key exists at location:​
/root/ajeet/.key and csr at /root/ajeet.csr
Question 13 - Take a backup of the ETCD database and save it to “/opt/etcd-backup.db” . Also restore the ETCD database from the backup​
Question 12 - Upgrade the Cluster (Master and worker Node) from 1.18.0 to 1.19.0. Make sure to first drain both Node and make it available after upgrade.​
Question 11 - Worker Node “node01” not responding, Debug the issue and fix it.​
Question 10 - Create a Persistent Volume with the given specification.​
Volume Name: pv-demo​
Storage:100Mi​
Access modes: ReadWriteMany​
Host Path: /pv/host-data​
Question 9 - Use JSON PATH query to retrieve the oslmages of all the nodes and store it in a file “all-nodes-os-info.txt” at root location.​
Note: The osImage are under the nodeInfo section under status of each node.​
Question 8 - Get the node node01 in JSON format and store it in a file at ​ ./node-info.json​
Question 7 - Create a pod called test-pod in "custom" namespace belonging to the test environment (env=test) and backend tier (tier=backend).​ image: nginx:1.17​
Question 6 - Create a pod called pod-multi with two containers, as given below:​
Container 1 - name: container1, image: nginx​
Container2 - name: container2, image: busybox, command: sleep 4800​
Question 5 - Create a static pod on node01 called static-pod with image nginx and you have to make sure that it is recreated/restarted automatically in case ​of any failure happens
Question 4 - Deploy a web-nginx pod using the nginx:1.17 image with the labels set to tier=web-app.​
Question 3 - Create a new deployment called my-deployment. Scale the deployment to 3 replicas. ​
Make sure desired number of pod always running.
Question 2 - Create a new deployment called myproject, with image nginx:1.16 and ​1 replica. Next upgrade the deployment to version 1.17 using rolling​ update​. Make sure that the version upgrade is recorded in the resource annotation.​
Question 1 - Create a new pod called web-pod with image busybox Allow the pod to be able to set system_time​. The container should sleep for 3200 seconds​
This is a video of all the exam questions I have ever asked. If you are preparing to take the CKA, or if you are taking the CKA, then this video is for you. I hope it helps!
This is the first of three videos where I discuss a module of questions from the Certified Knowledge Architect (CKA) exam. These questions provide good examples of what to expect on the exam and how to answer them. There's a ton I could say about the CKA, but in this video I keep it high level and superficially examine the exam to determine what topics will be covered in detail later on.
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[@nileshdhande7613]

Thank you so much for uploading this most valuable CKA Exam Questions & detail explained Answers...🙏

[@iajeetkhan]

Humbled with your love and support 🙏🏻please like the video and subscribe the channel 🙏🏻 part 10 is coming next week

[@salmanraza5223]

Excellent.

[@iajeetkhan]

Really humbled 🙏🏻 please share with your peers to keep me motivated 🙏🏻

[@SunitaSonawane2007]

Informative Video 👍

[@iajeetkhan]

Remaining 2 parts coming soon 😇

[@akdevsecops]

Thankyou ajeet bhai

[@iajeetkhan]

Welcome bro. Happy to help 😊

[@hims0912]

Thank you Sirji

[@iajeetkhan]

Really humbled 🙏🏻 thanks for supporting. Please share videos with your peers 🙏🏻

[@Marco-if7hp]

man, the video is well done, i am following each video of the domand and resolutions, only constructive criticism: you have to show where you get the commands from and how you build them! show especially in this video the nslookup command already built, i in exam would like to have the ability to search in kubernetes documentation and create the command myself, if you give me the command already composed it has no validity in exam because i would not know how to create it. show what page you take the command from and how you get to build it! thanks

[@vladx3539]

Hi Arent those options the default already? shouldnt k expose po dns-resolver --name=dns-resolver-service --port=80 be enough?

[@mayankarya6204]

Hi sir, There is one mistake that you have made in this question, It was asked to check pod and service both are resolvable in cluster. You did the same but only for the service not for the pod. So ideally you also do the same for pod aswell And my second concern is i believe this question required to save "service:" and "Address:" for service from the result, not the whole contact and same for the pod aswell. I might be wrong but i believe this is the correct way. Thanks for you support, ur video is very informative for us

[@bogaczbogacz]

you did not show the pod resolution only svc

[@atishjagtap1955]

Hello Ajeet, just wanted to ask Are the questions changing rapidly for cka exam or same questions are carried out

[@iajeetkhan]

The patter of question would be same. I am in constant touch with people appearing in the exam. I am closely watching if there is any pattern change happens. So far, people are able to clear the exam by practising the questions from my videos. So you can follow these questions and practise 🙏🏻

[@sushilkavi1038]

it would have been better if you could show how you searched this expose command from the cheatsheet. In some of the videos you have showed the search part which is important for any learner as it will be difficult to memorize all the commands.

[@iajeetkhan]

The basic idea is to learn and memorize some basic imperative command by practicing them. For some commands you will need to practice the cheatsheet by solving questions.

[@igormb1986]

Hi @iajeetkhan Thank you, i have cleared my cka exam

[@iajeetkhan]

Wow! That's a great news. Congratulations for this great achievement. Please do share your experience with others and if my videos were helpful, please give a shout-out on social media posts :)

[@igormb1986]

@iajeetkhan Your video was helpful, specially backup restore, upgrade kubeadm,clusterrole etc.. I practiced along with your video to clear exam.

[@atishjagtap1955]

Hello igormb1986 , i want to schedule the cka exam in upcoming week can you help me with it as i just wanted to know what kind of questions are asked .. If you can please provide your contact it will be helpful

[@user-hy2pd4zf5b]

hi...just want to know one info....Did he asked you to install ETCD or just backup and restore?

[@iajeetkhan]

Mostly they will ask for backup and restore. So far, I have not heard or seen anyone facing a question to install etcd.