《学习--内在的财富》提出，21世纪的教育应该有四大支柱，即（）。
A. "学会求知"
B. "学会做事"
C. "学会做人"
D. "学会共处"
请参见图示。在路由器R1的特权模式下输入telnet 192.168.11.2命令后显示如下信息： 如果R2接口处于图中所示的状态，最可能的原因是什么？（）
A. R2上缺少enable secret命令
B. R1上缺少enable password命令
C. R2的线路配置模式中缺少login命令
D. R2的线路配置模式中缺少password命令
E. R2的控制台模式中缺少login命令
F. R1的Serial 0/0接口模式中缺少no shutdown命令
Which two characteristics are true of a firewall running in routed mode based on the followinginformation？（）
A. FWSM routes traffic between the VLANs.
B. FWSM switches traffic between the VLANs.
C. Routed mode is often called bump-in-the-wire mode.
D. Routed mode firewall deployments are used most often in current designs.
Refer to the exhibit. Which statement is true？（）
A. Router RAR1 will accept only route 10.10.0.0/19 from its BGP neighbor
B. Router RAR1 will send only route 10.10.0.0/19 to its BGP neighbor
C. Only traffic with a destination from 10.10.0.0/19 will be permitted
D. Only traffic going to 10.10.0.0/19 will be permitted
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