In MPLS networks, what s the benefit of disabling TTL propagation?（）

多项选择题Which of the following statements about authentication responses and conditions is true? （）(Choosetwo.)

A. When a router receives a failure response, it stops querying authentication methods.
B. When a router receives an error response, it stops querying authentication methods.
C. If the router receives a failure response from an authentication method, it queries the next method.
D. The router does not differentiate between failure and error responses; the authentication process is always interrupted.
E. If it receives no response from the authentication method, a router will determine the error condition On its own; the router also has the option to proceed to the next method in a list if configured accordingly.

单项选择题Which information is contained in a AAA authentication method list?（）

A. A pointer to the address where a RADIUS server can be located
B. A sequential list of user authentication methods
C. A description of what a user can execute on a router
D. The setup for the authentication phase on a router

多项选择题Which three configuration steps must be completed for a Cisco router in order to enable local AAA login authentication?（） (Choose three.)

A. Apply the method list to an interface
B. Specify the default method list and apply it to the interface
C. Enable AAA
D. Define a method list

单项选择题Which QoS mechanism will allow a single policy to be applied to multiple interfaces?（）

A. policy map
B. class map
C. ACL
D. service policy

单项选择题What can be specified in IP VACLs?（）

A. Protocol and IP source only
B. IP Source, IP Destination and ports
C. IP Source Only
D. IP Destination Only