This CKS practice question tests your understanding of cluster setup and hardening. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
You want to ensure that the Kubernetes Dashboard is accessed only by authenticated users with specific permissions. What is the BEST approach?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "best"
Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use an ingress with authentication, and create RBAC roles for Dashboard users
Option D is correct because the Kubernetes Dashboard should be secured using an Ingress controller with authentication (e.g., OIDC, basic auth, or client certificate) combined with fine-grained RBAC roles to restrict what each authenticated user can do. This ensures that only authorized users with specific permissions can access the Dashboard, following the principle of least privilege and cluster hardening best practices.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Expose Dashboard via NodePort and rely on network firewalls
Why it's wrong here
NodePort exposes the service on every node, which is insecure if not properly firewalled.
✗
Create a ClusterRoleBinding granting cluster-admin to all service accounts
Why it's wrong here
This grants excessive privileges.
✗
Set Dashboard to use HTTP instead of HTTPS
Why it's wrong here
This would expose traffic in plaintext.
✓
Use an ingress with authentication, and create RBAC roles for Dashboard users
Why this is correct
This ensures secure access with authentication and least privilege.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often think network-level controls (NodePort + firewall) are sufficient for securing the Dashboard, but the CKS exam emphasizes that Kubernetes security requires authentication and authorization at the API level, not just network segmentation.
Detailed technical explanation
How to think about this question
The Kubernetes Dashboard uses a service account token for authentication by default, but when exposed via an Ingress with an authenticating proxy (e.g., nginx-ingress with auth-url or OAuth2 proxy), the Dashboard can be configured to trust the proxy's authentication headers (e.g., X-Remote-User). RBAC roles and bindings must be created for each user or group, mapping to specific verbs (get, list, watch) and resources (pods, deployments, etc.) to enforce granular access control. In a real-world scenario, an organization might integrate with an external identity provider (IdP) using OIDC, where the Ingress validates tokens and passes the user identity to the Dashboard, which then checks RBAC permissions.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A junior network technician can log in to a core router but cannot reach the enable prompt or configuration mode. The AAA server is authenticating the login — but the authorisation policy only grants privilege level 1, not 15. Authentication (who you are) is working; authorisation (what you can do) is not.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this CKS question in full detail.
Cluster Setup and Hardening — This question tests Cluster Setup and Hardening — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use an ingress with authentication, and create RBAC roles for Dashboard users — Option D is correct because the Kubernetes Dashboard should be secured using an Ingress controller with authentication (e.g., OIDC, basic auth, or client certificate) combined with fine-grained RBAC roles to restrict what each authenticated user can do. This ensures that only authorized users with specific permissions can access the Dashboard, following the principle of least privilege and cluster hardening best practices.
What should I do if I get this CKS question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "best". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
This CKS practice question is part of Courseiva's free CNCF certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CKS exam.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.