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Which Kubernetes resource would you use to assign a ClusterRole to a user across all namespaces?

easy📝 Conceptual Q2 of 15
Kubernetes - RBAC and Security
Which Kubernetes resource would you use to assign a ClusterRole to a user across all namespaces?
ARoleBinding
BClusterRoleBinding
CServiceAccount
DNamespace
Step-by-Step Solution
Solution:
  1. Step 1: Identify resource for cluster-wide permissions

    ClusterRoleBinding assigns ClusterRoles to users or groups across all namespaces.
  2. Step 2: Differentiate from RoleBinding

    RoleBinding only applies within one namespace, so it cannot assign cluster-wide roles.
  3. Final Answer:

    ClusterRoleBinding -> Option B
  4. Quick Check:

    ClusterRoleBinding = cluster-wide role assignment [OK]
Quick Trick: Use ClusterRoleBinding for cluster-wide role assignments [OK]
Common Mistakes:
  • Using RoleBinding for cluster-wide permissions
  • Confusing ServiceAccount with role bindings
  • Thinking Namespace is a binding resource

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