Which of the following allows network administrators to……

单项选择题Which of the following is an easy-to-use tool that allows you to easily configure and monitor Cisco Integrated Services Routers?（）

A. Cisco NAC Appliance
B. Cisco SDM
C. Cisco MWAM
D. Cisco Unified Communications Manager Express

多项选择题What are four advantages to using tunnel brokers in an IPv6 transition environment?（）

A. Tunnel brokers automatically provide configuration parameters to peer routers.
B. IPv6 enabling a node looks automatic to the end user.
C. Tunnel information is sent via IPv4.
D. Tunnel brokers make it simpler for nontechnical users to deploy manual tunnels.

多项选择题Which three of these items are IPv6 transition mechanisms? （）(Choose three.)

A. ISATAP
B. NATV6
C. manually configured overlay tunnels
D. dual stack configurations

单项选择题Which configuration will enable OSPF for IPv6 on FastEthernet 0 0 0?（）

A.A
B.B
C.C
D.D

单项选择题In a high-availability network, which command, when placed on ports that have connected end stations, will allow you to prevent delays in service for end stations by placing a port in blocking mode?（）

A. enable backbone fast
B. enable uplink fast
C. disable portfast
D. enable portfast