单项选择题
A.IP address
B.magic number
C.WINS assignment
D.Domain Name Server
多项选择题 In a PPP over ATM environment,which two PPP authentication methods are supported by the ERX Edge Router?（）
单项选择题 What is a method by which an IP interface can be assigned to a virtual router in a PPP over ATM environment？（）
单项选择题 Which configuration command controls the source IP address for packets sent to a RADIUS server？（）