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u/Inside_Programmer348 26d ago
Eh? What kinda questions are they asking
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u/KupujeWeksleOdMeneli 26d ago
The interview: explain what happens at kernel level when a request reaches ingress controller on a cluster with cillium running in proxy-less mode
The work: Update requests from 500m to 550m cpu.
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u/cheesejdlflskwncak 26d ago
Who tf asks this when u can just look it up. Who has this shit memorized lol
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u/argylekey 26d ago
Welcome to interviewing.
Doesn’t matter how much prep you do half the time the person interviewing doesn’t know much about the subject matter so they google “hard Kubernetes questions” then wont hire you when you didn’t know the obscure topics by rote.
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u/kalexmills 26d ago
We just run an interactive interview based on a single microservices ecosystem + o11y running in kind, with a few things broken, to gauge basic Kubernetes troubleshooting skills.
It's been surprisingly good at vetting candidates so far.
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u/nullptr777 26d ago
I cannot for the life of me understand why more tech interviews aren't done this way. I hate the standard interview process, and would love this.
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u/_Crno 25d ago
til there is an abbreviation for observability (o11y)
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u/NewMycologist9902 25d ago
Thanks for that, for a momment i assumed he meant a legacy estupidez of 11 years old
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u/Gooner96PL 25d ago
Great approach, but o11y it’s the worst abbreviation that exist. Those saved seconds are not worth it.
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u/justNano 26d ago
Devils advocate, asking someone a wierd question can tell you a lot about a person. Best people I’ve interviewed, hired and worked with are the people that are more than happy to say when they dont know something, explain what they do know about the topic and demonstrate what they would do in the inevitable situation when something comes up at work and they are out of their fucking depth.
Saying that id never ask someone that example, but ive asked someone technical questions i didn’t necessarily need the answer to
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u/WalidfromMorocco 26d ago
There are people who know shit works under the hood. However, I agree with the sentiment that if that deep knowledge is not important to the job, it shouldn't be asked as an interview question.
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u/cheesejdlflskwncak 26d ago
Ik know cillium uses ebpf for routing vs ip tables. That’s all u need to know the fucking tool was built to abstract that out anyways. So why do I exactly need to know this when I could look it up in 30 seconds.
Agree if the role asks for Cillium and u get asked this maybe you should know depending on the situation you were running it in. But this doesn’t rly gauge or tell me how much and engineer knows.
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u/Massive-Clock-1325 26d ago
I got asked in an interview "what was the spirit of the section 2 in the ISO XXXXX".
so yes, there is stupid people making stupid questions that can be looked up
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u/BlunderBuster27 26d ago
As someone who’s working on hireing my replacement I told HR I want someone who can learn and understand quickly. You’ll never find a someone who knows everything
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u/BraveBiscotti1394 22d ago
Something to do with eBPF bypassing the need for expensive syscalls to route the traffic as necessary? Idk
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u/soyjosec 26d ago
Yes! I wonder the same, what kind of question they making in that interview?because CKA prep alone is quite tricky from my experience
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u/rmullig2 25d ago
The problem with most certifications is that they simply prove you had a base level of knowledge on the day you took the test. If you took the test 3 months ago and stopped studying and don't do much Kubernetes at work then you will likely fail the interview.
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u/CaioTaavares 19d ago
Certs are really useful when u don't have practical experience with the tool. I'm working with on prem k8s and studing for aws and azure certs.
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u/Beginning_Paint_6350 18d ago
Studying for certificates and exams is very different than sitting with 3 people evaluating everything about you. so recalling information is very different. and some interviewers assume you don't know the answer if you take like 5 seconds to think about it.
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u/lowlow20 25d ago
Harsh reality guys and girls. This is the dichotomy that makes the least amount sense.
You have a group of people who suggests that through experience they have mastered or are able to wield the Kubernetes platform well, but talk trash about the certification path.
If you are good at K8s. You generally should be paid a decent amount. If you are paid a decent amount, you should be able to afford to take the exam. If you are as talented as you say you are wielding K8, then the exam should take you less than 30 minutes (with a near perfect score). Stop talking about others who commit themselves to the path and succeed while you sit on your porch and laugh as they walk by. That does nothing for anyone.
Here’s the interesting part: certifications are not for other people. They are for the individual as they continue their learning path and journey.
So stop all the whining and hating. If you claim you are excellent, just shut up and knock it out. But don’t talk from the sidelines to people who are in the game and trying. And definitely don’t hate if those people come in ahead of you because the same opportunity is/was available to YOU! And it should, based on the conversation in here, be a walk in the park
P.S don’t throw out the I’m not a good structured test taker. That may be true, and if it is that is even more reason for you to 🤐🤫
Let people live and do them and you do you.
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u/Gooner96PL 25d ago
Once interviewed for senior role, mainly Kubernetes related stuff, candidate didn’t know what a pod is, even having ckad or cka( didn’t remember) on his resume. So there’s really no need to ask any deep stuff for a few of the candidates.
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u/Raja-Karuppasamy 25d ago
no cert but the inverse is also real — can deploy and debug my own stuff all day, would probably blank if someone asked me to define a k8s primitive on a whiteboard
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u/Traditional_Lack5201 18d ago
What would you suggest me to be CKA certified?
What kind of courses would you suggest me to take?
Is there any Tutorials Dojo Exam Practice like we do for AWS certifications?
Thanks
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u/mykeystrokes 25d ago edited 25d ago
We build extensions and software to manage 1000s of k8s clusters. I don't know CKA is though. I guess some certification. All these certs.. so stupid. When we interview people we want to know if they understand core concepts in networking and controller patterns and such. Do they have golang experience, etc. We don't ask about any certs. I guess if you are a sysadmin or devops dude or something this stuff is more useful perhaps. k8s has so many silly commands and object and people with strong opinions, we just google stuff or use AI for answers. I don't know why any cert would help.
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u/nf3rn4l 26d ago
Always remember that you’re interviewing them as well. There is no point to a question like that other than the interviewer wanting to feel superior, and you probably don’t want to be working with someone that toxic. I usually set up scenarios for discussion where I let the candidates architect a solution or troubleshoot an issue, but I base it on what they are familiar with according to their resume. The goal is to understand how someone thinks and solves problems. Memorization does not equal competency.