单项选择题
Which configuration command allows the router to utilize a RADIUS server to authenticate incoming Telnet users?（）
A.aaa new-model B.aaa telnet login C.telnet authentication login D.authentication telnet login
单项选择题 What is the purpose of the magic number in an LCP negotiation?（）
单项选择题 Which software process sorts client login requests and assigns them to a virtual router for RADIUS service?（）
单项选择题 When sending an LCP Configuration Request, what can the ERX Edge Router possibly negotiate?（）
