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Docker Exam DCA Topic 6 Question 94 Discussion

Actual exam question for Docker's DCA exam
Question #: 94
Topic #: 6
[All DCA Questions]

The Kubernetes yaml shown below describes a networkPolicy.

Will the networkPolicy BLOCK this traffic?

Solution: a request issued from a pod lacking the tier: api label, to a pod bearing the tier: backend label

Show Suggested Answer Hide Answer
Suggested Answer: A

The provided Kubernetes NetworkPolicy YAML configuration indicates that the policy applies to pods with the label tier: backend in the default namespace1. The ingress rule allows traffic from pods with the label tier: api1. Therefore, a request issued from a pod bearing only the tier: frontend label to a pod bearing the tier: backend label will be blocked by this networkPolicy1. This is because the networkPolicy does not have a rule allowing ingress from pods with the tier: frontend label1. For more information on Kubernetes NetworkPolicies, you can refer to the Kubernetes Documentation on Network Policies.


by Layla at Aug 07, 2024, 08:01 AM

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Valda
3 days ago
I'm not sure about this one. The YAML looks a bit complex, and I'm not totally familiar with how networkPolicies work in Kubernetes. I'll need to think it through carefully.
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Kandis
9 days ago
This looks like a straightforward data step issue. I'll carefully review the error messages and the code to determine the best approach.
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Wayne
5 months ago
Haha, this kind of question is like a 'gotcha' for Kubernetes newbies. Better study those networkPolicy docs!
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Jolene
5 months ago
I think the answer is B) No, but I'm not 100% sure. I'll double-check the networkPolicy syntax just to be sure.
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Ezekiel
4 months ago
User 3: The networkPolicy will not block the traffic because it allows requests from pods with the tier: api label to pods with the tier: backend label.
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Rosio
4 months ago
User 2: I agree, let's double-check the networkPolicy syntax to be sure.
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Weldon
5 months ago
User 1: I believe the answer is B) No.
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Youlanda
5 months ago
The question is a bit misleading. We need to look at the actual networkPolicy configuration, not just the question itself.
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Jacklyn
4 months ago
I disagree, I believe it will not block the traffic.
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Tamra
4 months ago
B) No
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Bernardine
4 months ago
I think it will block the traffic.
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Noe
4 months ago
A) Yes
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Gerry
6 months ago
Hmm, this seems tricky. I'll have to carefully analyze the networkPolicy definition to determine if it will block the specified traffic.
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Tawny
6 months ago
I'm not sure, but I think the networkPolicy will allow the traffic.
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Milly
6 months ago
I agree with Domonique, because the request doesn't meet the criteria specified in the yaml.
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Domonique
6 months ago
I think the networkPolicy will block the traffic.
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