You must implement Azure RBAC assignments for the Network Contributor role and meet authentication and authorization constraints. What is the minimum number of role assignments required?

The minimum number of role assignments required is two. One assignment is needed at the resource group scope to grant the Network Contributor role to the first user. A second, separate assignment is required at the same resource group scope to grant the Network Contributor role to the second user. Azure RBAC assignments are made on a per-principal, per-scope basis. While you can assign multiple users to a single role, each user still represents a distinct principal requiring an assignment to that role at the specified scope. Therefore, two distinct users require two distinct role assignments, even if they are assigned the same role at the same scope.