In a DSL network，which device terminates the PPP over Ethernet subscriber’s two-wire phone line？（）

单项选择题Which process occurs first during the Ethernet Discovery Stage process for a PPPoE service offering?（）

A.The ERX router sends an Active Discovery Off ermessage.
B.The ERX router sendsan Active Discovery Initiation message.
C.The customer device sends an Active Discovery Offer message.
D.The customer device sends an Active Discovery Initiation message.

单项选择题The ERX Edge Router responds to a received PPP over Ethernet Active Discovery Initiation(PADI) with which message type?（）

A.PPPoE Active Discovery Offer
B.PPPoE Active Discovery Initiation
C.PPPoE Active Session Confirmation
D.PPPoE Active Session Acknowledgment

单项选择题Which configuration command allows the router to utilize a RADIUS server to auth enticate in coming Telnet users？（）

A.aaa new-model
B.aaa telnet login
C.telnet authentication login
D.authentication telnet login

单项选择题In a PPP over ATM service offering,which command inserts the user's host route into the routing table?（）

A.ip host-route
B.ip access-routes
C.ip dynamic host-route
D.ip route access-routes

多项选择题In a PPP over ATM service offering,which two methods are available for dynamically allocating an IP address to the customer's device?（）

A.DHCP
B.RADIUS server
C.local address pools
D.static IP assignmen