Linux Foundation CKS Exam - Topic 5 Question 85 Discussion

Actual exam question for Linux Foundation's CKS exam

Question #: 85
Topic #: 5

Context

A Role bound to a Pod's ServiceAccount grants overly permissive permissions. Complete the following tasks to reduce the set of permissions.

Task

Given an existing Pod named web-pod running in the namespace security.

Edit the existing Role bound to the Pod's ServiceAccount sa-dev-1 to only allow performing watch operations, only on resources of type services.

Create a new Role named role-2 in the namespace security, which only allows performing update

operations, only on resources of type namespaces.

Create a new RoleBinding named role-2-binding binding the newly created Role to the Pod's ServiceAccount.

AExplanation:

Show Suggested Answer

Suggested Answer: A

by Lai at Nov 22, 2025, 01:02 AM

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Arlean

4 months ago

Yes, role-2 for namespaces is crucial. Good catch!

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Velda

4 months ago

But we also need to create that new Role, right?

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Elina

4 months ago

Agreed. Watch operations are safer for services.

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Denny

5 months ago

I think option A is the best choice. It limits access well.

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Vannessa

5 months ago

I feel the same. Need to focus on the specifics.

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Gearldine

5 months ago

Sounds good, but are we sure this won't break anything?

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Jolene

5 months ago

Wait, we can create a Role for namespaces? That’s new to me!

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Susana

6 months ago

Totally agree, less is more when it comes to permissions!

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Annamaria

6 months ago

Just need to limit permissions to watch services only.

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Bobbie

6 months ago

Wait, we have to create a new Role and RoleBinding? That's a lot of steps.

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Dick

6 months ago

Haha, I bet the exam writer had a good laugh coming up with this one.

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Laquita

6 months ago

Hmm, I'm not sure about the namespace update permission. Seems a bit overkill.

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Santos

7 months ago

This looks straightforward, I think I can handle it.

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Ronnie

7 months ago

I recall that we had to bind Roles to ServiceAccounts in a previous exercise. I hope I can remember the steps to create the RoleBinding correctly.

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Stanford

7 months ago

I think I need to look up the exact syntax for defining permissions in a Role. I feel like I might mix up the resource types.

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This seems like a good opportunity to demonstrate my RBAC knowledge. I'm confident I can complete all the tasks efficiently and accurately. I'll make sure to follow the exact requirements and pay close attention to the details.

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Denise

7 months ago

Okay, let's break this down step-by-step. First, I'll edit the existing Role to only allow watch operations on services. Then, I'll create a new Role for updating namespaces and bind it to the Pod's ServiceAccount. I think I can handle this, but I'll double-check my work before submitting.

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Doretha

7 months ago

This question is tricky. Permissions can get complicated.

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Brett

8 months ago

This seems similar to that practice question where we had to create a RoleBinding. I think I can manage that part, but the specifics on namespaces are a bit fuzzy.

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Eric

8 months ago

I remember we practiced editing Roles before, but I'm not entirely sure how to limit permissions specifically to watch operations.

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Jovita

8 months ago

I think updating namespaces is a bit risky, but okay.

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Nenita

8 months ago

Hmm, I'm a bit unsure about the specifics of the RBAC resources and their interactions. I'll need to carefully read through the question and make sure I understand the expected changes before attempting to implement them.

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Delmy

9 months ago

This looks like a straightforward RBAC question. I'll start by reviewing the existing Role bound to the Pod's ServiceAccount and then create a new Role and RoleBinding as per the requirements.

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