单项选择题
A. to make CEF tables smaller
B. to enable label switching on the frame mode interface
C. to restrict MPLS availability to predefined time periods
D. to restrict label switching to a limited number of networks
E. to restrict end users from seeing the routers in the MPLS network
单项选择题 Refer to the exhibit. This shows the NetFlow statistics for a router. You are analyzing the traffic pattern and you are interested in the percentage of packets between 32 and 64 bytes in size and the number of flows in progress. Which of these identifies both numbers correctly?（）
多项选择题 Which of the following statements about authentication responses and conditions is true?（）(Choose two.)
单项选择题 Refer to the exhibit. MPLS has been enabled on router PE11. Which of these statements is correct regarding the output display shown in the exhibit? （）