EX280 User And RBAC Management Practice Question
An administrator is troubleshooting a multi-tenant environment where a project administrator of the 'team-a' namespace attempts to bind the cluster-admin ClusterRole to a user in their namespace using a RoleBinding. What is the expected outcome of this operation?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The operation succeeds, and the user receives admin privileges restricted solely to the 'team-a' namespace.
A RoleBinding can reference a ClusterRole, which grants the permissions of that ClusterRole scoped to that namespace. However, binding cluster-admin via a RoleBinding grants full admin privileges *within that namespace*, not cluster-wide.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
The operation succeeds, and the user receives admin privileges restricted solely to the 'team-a' namespace.
Why this is correct
Using a RoleBinding to reference the cluster-admin ClusterRole grants full administrative permissions within that specific namespace only.
- ✗
The API server rejects the request because RoleBindings cannot reference ClusterRoles.
Why it's wrong here
RoleBindings are explicitly designed to be able to reference ClusterRoles to grant cluster-defined role templates within a namespace.
- ✗
The operation succeeds, but the authorization webhook automatically strips dangerous privileges like secret reading.
Why it's wrong here
Cluster-admin grants full permissions within the scope of the binding.
- ✗
The operation succeeds, and the user receives cluster-admin privileges across the entire cluster.
Why it's wrong here
RoleBindings are strictly namespaced; binding a ClusterRole via a RoleBinding only grants those permissions within the binding's namespace.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official Red Hat exam blueprint
This EX280 practice question is part of Courseiva's free Red Hat 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 EX280 exam.