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Linux Foundation CKA Exam - Topic 4 Question 32 Discussion

Actual exam question for Linux Foundation's CKA exam

Question #: 32
Topic #: 4

[All CKA Questions]

Score: 4%

Task

Check to see how many nodes are ready (not including nodes tainted NoSchedule ) and write the number to /opt/KUSC00402/kusc00402.txt.

AExplanation:
Solution:
kubectl describe nodes | grep ready|wc -l
kubectl describe nodes | grep -i taint | grep -i noschedule |wc -l
echo 3 > /opt/KUSC00402/kusc00402.txt
#
kubectl get node | grep -i ready |wc -l
# taintsnoSchedule
kubectl describe nodes | grep -i taints | grep -i noschedule |wc -l
#
echo 2 > /opt/KUSC00402/kusc00402.txt

Show Suggested Answer

Suggested Answer: A

by Talia at Oct 11, 2022, 10:55 AM

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Natalie

7 months ago

I thought there would be more nodes ready, this is surprising!

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Pauline

8 months ago

Totally agree, the commands are a bit overcomplicated.

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Ryan

8 months ago

Wait, are there really only 2 nodes ready? That seems low.

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Kaycee

8 months ago

I think the taint command is unnecessary here.

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Howard

8 months ago

Just use `kubectl get nodes` to check readiness!

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Nenita

8 months ago

I think we should be careful with the `wc -l` part; I just hope we don't accidentally count the tainted nodes in our final output.

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Isabella

8 months ago

I feel like the command to write the number to the file is straightforward, but I can't recall if we need to check for other conditions too.

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Aracelis

8 months ago

I remember practicing a similar question where we had to filter out tainted nodes. I think we can use `grep` for that.

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Frank

9 months ago

I think we need to count the nodes that are ready, but I'm not sure if we should use `kubectl describe` or `kubectl get`.

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Georgene

9 months ago

Hmm, this looks like a tricky one. I'll need to carefully analyze the key influencers visual to identify the factors that affect the quantity of items sold.

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Tyisha

9 months ago

Okay, let's see. The username being already in use in another org seems like the most likely issue here.

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Clement

9 months ago

I'm pretty sure that government payment structures limit how health plans can adjust their rates, so A feels correct.

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