单项选择题
Which type of EIGRP route entry describes a feasible successor?（）
A. a primary route,stored in the routing table B. a backup route,stored in the routing table C. a backup route,stored in the topology table D. a primary route,stored in the topology table
单项选择题 How dose a DHCP server dynamically assign IP address to host?（）
单项选择题 How many broadcast domains are shown in the graphic assuming only the default vlan is configured on the switches?（）
单项选择题 What is the effect of using the service password-encryption command?（）
