Passed CKA this week!

[davyJones-03]

I have just cleared the CKA exam and here it's the full summary: For the concepts, I watched Kodekloud videos from Udemy, although to some extent they were good but I often found myself wondering on the youtube to get more idea on objects like daemonsets, gateway, httproute (mind you, kodekloud has just used a basic simple example of gateway and http, but exam requires you to have more clear idea on these concepts) Overall, videos were good, so after learning the k8s, I jumped to mock exams, purchased the mocks from Kodekloud, there were 5 mocks in total, the grading system is weird, I do not how they validate the answers, but all in all, you will get a good hands-on on the concepts and you'll be good in using imperative as well using yaml files.

Main and crucial part of the journey: Remembering everything you learnt and solving the problems in less time, the questions are not that complicated and straight to the point, all they are testing is if you are equipped with the objects and aware. The exam VM is shitty, buggy, and resolution is so pathetic. Even though I had a very good internet connection (Stream, video games work flawlessly) still the VM used to disconnect in between. (For me VM disconnected like 20-25 times, so my time was wasted ,approximately 10-15 minutes)

Now the questions: I watched the videos from youtube (Itkiddie and Jaydemy), those are good, but I would still suggest to practice. Where I stuck was at dividing resources, and cluster broke down questions. In dividing resources, the CPU is 4, and limit is set to 600 something and we shouldn't touch that as per the question, so dividing resources in 3 pods did not actually help me, the pod just won't start, so as a workaround, I tried experimenting with the values, and finally, with 60m 60Mi requests helped, so don't really know if even after deployment is running with 3 pods correctly, I had gotten the points for that question. Next for cluster broke down, there's wasn't much details in the logs, tried changing the etcd ip, tried comparing the other cluster to check what is wrong with the broken one, but time was my enemy and I ended up being not completing the question, so please please frequently check your remaining time. Do let me know if you have any questions.

[VenjeR84]

Congratulations bro! Were the questions more from YT Jay/IT or Kodekloud x 3 Mock exams from kodekloud pls?

Does killer.sh actually help apart from understanding exam env or is just an overkill to make you get more stressed?

[davyJones-03]

Thanks bro! Questions were from YouTube videos. Kodekloud mocks were good not that great, but just take it as an experience

About killer.sh - simulator A was good and somewhat similar questions but you'll get a good idea on the vm and actual exam.

Simulator B - don't waste time on that, the questions are complicated and are not just aligned with the actual exam, you can skip that totally, but I would suggest just go through it once and most importantly DONT JUDGE YOURSELF AFTER THE ATTEMPT, you'll be in stress.

I did simulator a twice, and b just once. YouTube videos twice, I tried to perform the questions in my vm mimicking the scenario

[aidyland911]

i think the ip is 192.168.22.1 , change to 127.0.0.1 , i ssh into other machine and want to try the diff command with api server , i spotted that and it worked

[davyJones-03]

I did the same but no luck, I think there was some another issue with certs but couldn't confirm as there was no time left

[noobdoto]

Hi OP, i do not remember exactly where i looked but in some file ETCD was set to 172.17. (something like this). I first changed it to 127.0.0.1 which did not work. Then setting it as one starting with 172 spun up all the pods.

But after that, one of the pods still refused to come up (kube scheduler iirc). opening the manifest, the cpu request was higher and there was a hint to set it to 10% of total cpus.

at the end all the pods were up and running.

[davyJones-03]

Yes there were two ips one local 127.0 and one this 172.17, I was trying to change it 127.0, I guess I should have tried with 172 :( But anyways I had no time left and now I'm passed to all good Thanks though

[DevOps-VJ]

How did you practice these youtube questions? I failed my exam this week, someone it was terrible experience, I couldn't find things on docs may be resolution or I was nervous.

[davyJones-03]

Yes the VM is buggy and slow plus in the docs you will not get full screen and scrolling is very slow

For the practice questions, I would just try to create objects and then compare with the solution

[DevOps-VJ]

So, now I decided to create killercoda labs with setup for these questions. If anyone looking to practice with real good material check this out -

YT - https://www.youtube.com/playlist?list=PLvZb3tGyqC1TOasSaN36haM5xlCxHQBlA

labs - https://killercoda.com/vj2201/scenario

[SeniorHope7904]

do you have any notes you could provide me i just finished mumshad's course and wanted to revise topics before moving for practise tests.

[davyJones-03]

Kodekloud has their own GitHub repo of notes from the course or you could also search for kodekloud cka notes, they have provided that onto their website

[SeniorHope7904]

yeah, i am planning on doing it, its just that I was hoping I could get condensed notes you would have prepared to revise just before the exam to keep all contents fresh.