单项选择题
A.ip host routes
B.ip access-routes
C.host routes enabled
D.access-routes enabled
单项选择题 Which configuration command dynamically detects and configures a Bridged 1483 interface?（）
单项选择题 A user is connected on a DSL line and is using a PPP over Ethernet service.Which network device strips the ATM header from the datagram and investigates the PPP header?（）
单项选择题 In a DSL network，which device terminates the PPP over Ethernet subscriber’s two-wire phone line？（）