CKA Exam - Sources for VPA (Vertical Pod Autoscaler)

Kubernetes
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#1

Hi,

I’m seeing new questions based on VPA in mock exams on CKA.
In one exam installation of a VPA was also required. I would like to know which sources we can refer to in the exam if we get a question such as this. The official kubernetes section does not have examples or installation guides, but have links to GitHub repositories. Is using them allowed in the exam?

Thanks!

#2

Hi @ravindukrs

It’s been discussed here with a demo.

Hope this helps.

#3

Hi @Santosh_KodeKloud

Thank you for responding to this.

The mock questions expect an answer using

apiVersion: autoscaling.k8s.io/v1
kind: VerticalPodAutoscaler

Ex: Ultimate Certified Kubernetes Administrator (CKA) Mock Exam Series - CKA Mock Exam 3 - Task 8

I was not able to find an example or a reference for that CRD in the link you provided (Although, it has a link to a GitHub repo).

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#4

You can derive the basic structure using k explain vpa.spec, which will work w/o any prohibited web pages. You may need to remember/practice how to do that quickly, but that’s the basis of how you can get the structure of the resource type.

#5

Hey Rob, I’m not sure that answers the question. I also want to know - does the CKA exam include any questions about managing/deploying/troubleshooting VPA resources?

Because there is no information in the official Kubernetes docs, which is because Kubernetes does not include VPA out of the box. So even k explain vpa.spec requires us to first install VPA which is going to require unofficial resources.

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#6

I also think it’s weird to have VPA without a proper documentation in the official kubernetes page. I don’t think it’s fair to have a question in CKA about one topic that is not properly documented

#7

The Linux Foundation sometimes does these sorts of things. Generally speaking, if a topic does not have approved docs, as is the case here, it will limit the kinds of questions you get on the exam. So you’re unlikely to be asked something for which no docs available.

One thing that can do, that we’ve seen them do recentlly – they can include links to docs in a question that are not on the approved list. So it’s worth being familiar with the VPA docs on Github, even if they are not approved. This happened with Gateway API before it was added to the approved list, which happened a couple of weeks ago. This could, in theory, happen with VPA as well, even if it is not added to the approved list.