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Linux Foundation Exam CKA Topic 3 Question 63 Discussion

Actual exam question for Linux Foundation's CKA exam
Question #: 63
Topic #: 3
[All CKA Questions]

Score: 7%

Task

Create a new NetworkPolicy named allow-port-from-namespace in the existing namespace echo. Ensure that the new NetworkPolicy allows Pods in namespace my-app to connect to port 9000 of Pods in namespace echo.

Further ensure that the new NetworkPolicy:

* does not allow access to Pods, which don't listen on port 9000

* does not allow access from Pods, which are not in namespace my-app

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Suggested Answer: A

by Matt at Jun 19, 2024, 11:55 AM

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Vallie
11 months ago
I'm a bit concerned about the 'does not allow access from Pods, which are not in namespace my-app' part. Shouldn't we also specify the 'from' selector in the ingress rule?
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Lettie
10 months ago
Let's update the NetworkPolicy yaml file to include the 'from' selector for the ingress rule. That way, we can restrict access to only Pods in the my-app namespace.
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Merlyn
10 months ago
That makes sense. We need to ensure that only Pods from the my-app namespace can access port 9000 in the echo namespace.
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Tegan
10 months ago
Yes, you're right. We should add the 'from' selector in the ingress rule to specify Pods in the my-app namespace.
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Ariel
10 months ago
Agreed, let's update the ingress rule to include the 'from' selector for Pods in namespace my-app.
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Frank
11 months ago
That's a good point. We need to make sure only Pods from namespace my-app can access port 9000.
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Dick
11 months ago
Yes, you're right. We should add the 'from' selector in the ingress rule to specify Pods in namespace my-app.
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Ryan
1 years ago
I feel confident about this question, I have practiced similar tasks before.
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Sommer
1 years ago
Haha, the question says 'ensure that the new NetworkPolicy allows Pods in namespace my-app to connect to port 9000', but the solution is using port 8080. Someone needs to pay more attention to the details!
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Loren
11 months ago
Yeah, attention to detail is key in these scenarios. Port numbers matter!
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Pamella
11 months ago
Oops, looks like they made a mistake in the solution. It should be port 9000, not 8080.
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Elinore
1 years ago
Wait, aren't we supposed to allow access to port 9000, not 8080? I think I see a typo in the solution.
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Jesusa
12 months ago
Let's update the network.yaml file to specify port 9000 instead of 8080. That should fix the issue.
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Talia
1 years ago
You're right, there seems to be a mistake in the solution. We should allow access to port 9000, not 8080.
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Elli
1 years ago
I think the key is to carefully follow the instructions and use the provided solution as a guide.
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Anissa
1 years ago
I agree, creating a new NetworkPolicy can be challenging.
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Yun
1 years ago
This question seems tricky.
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Christa
1 years ago
Hmm, the question seems straightforward enough, but I'm a bit confused about the namespace part. Shouldn't it be 'echo' instead of 'internal'?
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Hannah
12 months ago
Make sure to update the namespace in the NetworkPolicy to 'echo' for it to work correctly.
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Billy
1 years ago
Yes, the namespace in the NetworkPolicy should match the existing namespace 'echo'.
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Curt
1 years ago
You're right, the namespace should be 'echo' instead of 'internal'.
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