A.A
B.B
C.C
D.D
第1题:
假设在LAC路由器上运行show vpdn命令,路由器软件系统输出的配置信息如图5-17所示。结合图 5-15所示的网络拓扑结构,请将(5)~(9)空缺处填写完整,完成在LAC上对L2TPv2协议的相关配置。
Router_LAC(config)vpdn enable
Router_LAC(config) (5) (创建相应vpdn组,并进入该组的配置模式)
(6) (接受对端发起L2TP通道连接请求,并根据virtual—template 1创建virtual-access接口)
Router_LAC(config-vpdnl) (7) (启用L2TP通道验证功能)
Router_LAC(config-vpdnl)12tp tunnel password! abcd1234!
(8)
Router_LAC(config) (9) (创建并进入相应的L2TP虚接口模板)
(其他配置略)
第2题:
The output of the show aaa domain-map displays the following information:Domain: isp1.com; virtual-router: vr1; loopback: 1Domain: isp2.com; virtual-router: vr2; loopback: 1Domain: none; virtual-router: vr3; loopback: 1Domain: default; virtual-router: vr4; loopback: 1The 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
第3题:
Refer to the exhibit. During the process of configuring a virtual link to connect area 2 with the backbone area, the network administrator received this console message on R3:*Mar 1 00:2 5:01.084: %OSPF -4- ERRRCV: Received invalid packet: mismatch area ID, from backbone area must be virtual link but not found from 20.20.20.1, Serial 0 .How should the virtual link be configured on the OSPF routers to establish full connectivity between the areas?()
A.R1(config - router)# area 0 virtual - link 1.1.1.1R3(config - router)# area 2 virtual - link 3.3.3.3
B.R1(config - router)# area 1 virtual - link 2.2.2.2 R3(config - router)# area 1 virtual - link 2.2.2.2
C.R1(config - router)# area 1 virtual - link 20.20 .20.2 R3(config - router)# area 1 virtual - link 30.30.30.2
D.R1(config - router)# area 1 virtual - link 30.30.30.3 R3(config - router)# area 1 virtual - link 20.20.20.1
E.R1(config - router)# area 1 virtual - link 3.3.3.3 R3(config - router)# area 1 virtual - link 1.1 .1.1
第4题:
A. LNS IP address is defined.
B. LAC IP address is defined.
C. Virtual-router vr1 sends and receives L2TP traffic.
D. Virtual-router vr1 is the authenticating virtual-router.
E. This command is performed on the LNS.
第5题:
A.virtual-routerisp-1
B.virtual-routerISP-1
C.virtual-routerVRisp-1
D.virtual-routerVRISP-1
第6题:
A.只亮一盏绿灯(Operational)。
B.绿灯(Operational)和黄灯(TXnotenablE.常亮。
C.绿灯(Operational)和黄灯(TXnotenablE.交替闪烁。
D.此时的黄灯(LocalmodE.必处于常亮状态。