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Google Professional Cloud Network Engineer Exam - Topic 8 Question 38 Discussion

You create a Google Kubernetes Engine private cluster and want to use kubectl to get the status of the pods. In one of your instances you notice the master is not responding, even though the cluster is up and running.What should you do to solve the problem?
D) Create the appropriate master authorized network entries to allow the instance to communicate to the master.
A) Assign a public IP address to the instance.
B) Create a route to reach the Master, pointing to the default internet gateway.
C) Create the appropriate firewall policy in the VPC to allow traffic from Master node IP address to the instance.

Google Professional Cloud Network Engineer Exam - Topic 8 Question 38 Discussion

Actual exam question for Google's Professional Cloud Network Engineer exam
Question #: 38
Topic #: 8
[All Professional Cloud Network Engineer Questions]

You create a Google Kubernetes Engine private cluster and want to use kubectl to get the status of the pods. In one of your instances you notice the master is not responding, even though the cluster is up and running.

What should you do to solve the problem?

Show Suggested Answer Hide Answer
Suggested Answer: D

https://cloud.google.com/kubernetes-engine/docs/how-to/private-clusters#cant_reach_cluster

https://cloud.google.com/kubernetes-engine/docs/how-to/authorized-networks


by Caitlin at May 06, 2022, 08:28 AM

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Ardella
10 months ago
Isn't it surprising that the master can be unresponsive in a running cluster?
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Sharen
10 months ago
Agreed, the master authorized network entries make sense here.
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Gail
11 months ago
Wait, why would you assign a public IP? That seems risky.
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Brittani
11 months ago
I think option D is the way to go!
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Brice
11 months ago
Definitely need to check the firewall settings.
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Malissa
11 months ago
I feel like assigning a public IP could expose the instance unnecessarily. I’m leaning towards creating a firewall policy instead.
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Rachael
11 months ago
I think I saw a similar question where we had to set up network access for the master. Maybe it's option D?
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Jessenia
11 months ago
I remember something about needing to configure access to the master node, but I'm not sure if it's about firewall rules or something else.
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Lashawnda
11 months ago
I’m a bit confused about the difference between the firewall policy and the master authorized networks. I guess I need to review that part again.
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Margret
11 months ago
I'm a bit unsure about this one. I'll need to review the details of the model-driven app and the form configuration to figure out the best approach.
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Vicky
11 months ago
Hmm, I'm not totally sure about this one. The senior responsible owner or programme manager might also have a lot of interaction with governance bodies. I'll have to think this through carefully.
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