单项选择题
A.Permissions are configured individually for each user.
B.Users are associated with user classes, and each class defines the permissions for entering commands.
C.There are four default classes with different permissions and you can only use these four.
D.Permissions are associated with each user ID
单项选择题 You have been asked to configure a login class which will permit its users to view and edit the configuration. The class should only allow the configuration of the interfaces and firewall heirarchies. Which configuration correctly accomplishes this?（）
单项选择题 A router has been configured with the authentication order settings shown below: [edit] user@host# show system authentication-order authentication-order [radius tacplus password]; The router also has a local database that contains the user lab with password lab123. What would happen if both the RADIUS and the TACACS servers respond with a reject for user lab?（）
单项选择题 A router has been configured with the settings shown below: [edit] user@host# show system authentication-order authentication-order [ radius tacplus ]; The router also has a local database that contains the user lab with password lab123. What would happen if both the RADIUS and the TACACS servers are not accessible?（）