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Docker DCA Exam - 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, 07:01 AM

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Nancey
5 months ago
The policy should allow traffic from other labels, right?
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Solange
5 months ago
Wait, are you sure about that?
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Linn
6 months ago
Definitely blocks it!
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Oretha
6 months ago
I think it won't block it.
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Coral
6 months ago
Yes, it will block that traffic.
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Alberta
6 months ago
I feel like this is tricky; I need to double-check how ingress rules work in this context.
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Ona
7 months ago
If the pod doesn't have the tier: api label, then it seems like it should be blocked, right?
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Stefany
7 months ago
I'm not entirely sure, but I remember a practice question where a similar policy allowed traffic only from certain pods.
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Ma
7 months ago
I think the networkPolicy is set to allow traffic only from specific labels, so it might block the request.
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Emerson
7 months ago
I'm feeling pretty confident about this one. The networkPolicy is set up to block traffic from pods without the "tier: api" label to pods with the "tier: backend" label, so the answer should be "Yes, the traffic will be blocked."
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Dorothy
7 months ago
Okay, let's break this down step-by-step. The networkPolicy is targeting pods with the "tier: backend" label, and the question is asking about a request from a pod without the "tier: api" label. I think the answer is going to be "Yes, the traffic will be blocked."
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Pamella
7 months ago
Hmm, I'm a bit confused by the YAML. I'll need to review the Kubernetes networking concepts again to make sure I understand how networkPolicies work.
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Narcisa
7 months ago
I think I can figure this out. The networkPolicy seems to be targeting pods with the "tier: backend" label, so I'll need to check if the request is coming from a pod without the "tier: api" label.
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Valda
7 months 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
7 months 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
1 year ago
Haha, this kind of question is like a 'gotcha' for Kubernetes newbies. Better study those networkPolicy docs!
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Jolene
1 year 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
11 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
11 months ago
User 2: I agree, let's double-check the networkPolicy syntax to be sure.
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Weldon
12 months ago
User 1: I believe the answer is B) No.
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Youlanda
1 year 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
11 months ago
I disagree, I believe it will not block the traffic.
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Tamra
11 months ago
B) No
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Bernardine
11 months ago
I think it will block the traffic.
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Noe
11 months ago
A) Yes
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Gerry
1 year 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
1 year ago
I'm not sure, but I think the networkPolicy will allow the traffic.
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Milly
1 year ago
I agree with Domonique, because the request doesn't meet the criteria specified in the yaml.
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Domonique
1 year ago
I think the networkPolicy will block the traffic.
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