单项选择题
A.remote DLCI on the main interface
B.local DLCI on the main interface
C.local DLCI on the subinterface
D.remote DLCI on the subinterface
多项选择题 Which two tasks does the Dynamic Host Configuration Protocol perform?（）
多项选择题 What are two characteristics of Telnet (Choose two.)（）。
单项选择题 Refer to the exibit. Three cisco 2950 switches are set to their default priority settings.During the spanning-tree process，which switch will be elected as the root bridge？（）