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VMware 2V0-17.25 Exam - Topic 3 Question 8 Discussion
Topic #: 3
Which Kubernetes object is used to grant permissions to a cluster-wide resource?
In Kubernetes RBAC, ClusterRoleBinding is the mechanism for granting permissions to resources that are not namespace-scoped. The documentation integrated into VCF 9.0 explains: ''ClusterRoleBinding binds a user, group, or service account to a ClusterRole, granting cluster-wide permissions to non-namespaced resources such as nodes, storage classes, or persistent volumes.''
A RoleBinding grants access to namespace-scoped resources. RoleReference is a field within a RoleBinding/ClusterRoleBinding object, not a standalone object. ClusterRoleAccess is not a valid Kubernetes construct.
Thus, to assign permissions at a cluster-wide level, the correct object is ClusterRoleBinding.
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