多项选择题
A. PE11 originated label 20.
B. PE11 originated label 21.
C. ThePE11 upstream neighbor originated label 21.
D. The PE11 downstream neighbor originated label 20.
E. PE11 will append label 21 to incoming packets labeled 32.
F. PE11 will impose label 20 on incoming packets labeled 32.
单项选择题 Refer to the exhibit. You want to minimize the downtime that results from supervisor engine switchovers on Cisco 6500 Series Switches and Cisco 7600 Series Routers. To achieve this, you are considering deploying a Cisco Nonstop Forwarding with Stateful Switchover solution using OSPF. In the exhibit you can see the output of the show ip ospf neighbor detail command. Which trait of systems using Cisco Nonstop Forwarding with Stateful Switchover and OSPF is shown in the exhibit output and will impact your plan?（）
多项选择题 Refer to the exhibit. Which two of these events will be the result of issuing the above command? （）(Choose two.)
单项选择题 Refer to the exhibit. For the given configuration, on packets leaving the router on interface FastEthernet0/0 that matches the high traffic class, what will the MPLS experimental bit be set to?（）
