单项选择题
End users are failing to log in to the network. Which command is used on the ERX Edge Router to validate communications with the RADIUS server?（）
A. test ppp aaa B. test aaa ppp C. test radius user D. test user radius
The output of the show aaa domain-map displays the foll...
The output of the show aaa domain-map displays the following information: Domain: isp1.com; virtual-router: vr1; loopback: 1 Domain: isp2.com; virtual-router: vr2; loopback: 1 Domain: none; virtual-router: vr3; loopback: 1 Domain: default; virtual-router: vr4; loopback: 1 The end user supplies a login name of joe@isp7.com . Which virtual router is responsible for authenticating this user?（）
A. vr1 B. vr2 C. vr3 D. vr4
The output of the show aaa domain-map displays the following information: Domain: isp1.com; virtual-router: vr1; loopback: 1 Domain: isp2.com; virtual-router: vr2; loopback: 1 Domain: none; virtual-router: vr3; loopback: 1 Domain: default; virtual-router: vr4; loopback: 1 The end user supplies a login name of joe with no domain name. Which virtual router is responsible for authenticating this user?（）
A.vr1 B.vr2 C.vr3 D.vr4
When does the E-series router start monitoring DHCP tra...
单项选择题When does the E-series router start monitoring DHCP traffic using the DHCP External function?（）
A. When the discovery packet enters the router from the DHCP client. B. Only when the offer packet enters the router from the DHCP server. C. When the acknowledge packet enters the router from the DHCP server. D. Only when the discovery packet leaves the router going to the DHCP server.
