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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 trafftc?

Solution. a request issued from a pod bearing only the tier: frontend label, to a pod bearing the tier: backend label

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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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Natalya
3 months ago
I agree with Lindsey, based on the labels mentioned, the networkPolicy should block the traffic.
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Lindsey
3 months ago
But the solution mentions that it will block traffic from frontend to backend pods.
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Ronna
3 months ago
Ah, the age-old question: will the networkPolicy block the traffic or not? It's like playing a game of Kubernetes Sudoku!
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Vivienne
4 months ago
The networkPolicy will definitely block the traffic. I mean, just look at that YAML file - it's like a firewall for your Kubernetes cluster!
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Felix
3 months ago
B) No
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Jina
3 months ago
I agree, the networkPolicy will definitely block the traffic.
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Ruthann
3 months ago
A) Yes
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Joni
4 months ago
Hmm, this is a tricky one. I think the networkPolicy will block the traffic, but I'm not 100% sure. I should probably review the Kubernetes documentation again.
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Marlon
4 months ago
I disagree, I believe the networkPolicy will not block the traffic.
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Casey
4 months ago
No, the networkPolicy will not block the traffic. The policy allows traffic from any pod to the backend service, as long as the destination IP address matches the backend pods.
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Justine
2 months ago
No, the networkPolicy will not block the traffic. The policy allows traffic from any pod to the backend service, as long as the destination IP address matches the backend pods.
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Sharee
3 months ago
B) No
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Lazaro
3 months ago
A) Yes
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Carma
4 months ago
Yes, the networkPolicy will block the traffic from the frontend pod to the backend pod. The policy specifies that only pods with the label 'tier: backend' can access the backend service.
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Joanne
3 months ago
B) No
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Torie
3 months ago
That's correct. The networkPolicy will block the traffic as specified in the yaml.
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Yun
3 months ago
A) Yes
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Lindsey
4 months ago
I think the networkPolicy will BLOCK the traffic.
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