問題文
A team wants to hand out a fixed set of privileges to twenty accounts and to change that set later in one place. Which statement about roles is correct?
選択肢
- A role is a fixed set of privileges that can be granted to an account but not to another role and a change to the role reaches every grantee.
- A role is a named set of privileges that can be granted to an account or to another role and a change to the role reaches every grantee.
- A role is a copy of the privileges of an account that can be attached to other accounts and a change to the original account reaches every grantee.
- A role is a set of resource limits that can be assigned to an account or to a single session and a change to the role reaches every session at once.