单项选择题
A.This device is configured as a PPPoE client
B.This device is configured as a PPPoA client
C.This device is configured as RFC 1483/2684bridge
D.This device is configured an an aggregation router
多项选择题 Whichtwoencapsulationmethodsrequirethatan827ADSLrouterbeconfiguredwithaPPPusernameandCHAPpassword？（）
多项选择题 WhichthreestatementsaccuratelydescribeIOSFirewallconfigurations？（）
单项选择题 Study this exhibit carefully. What information can be derived from the SDM firewall configurationdisplayed？（）
