IGP 包括如下哪些协议（） [" RIP"," BGP"," IS-IS"," OSPF"]
皮电反应
Which three features are benefits of using GRE tunnels in conjunction with IPsec for building site-to-site VPNs？（） ["allows dynamic routing over the tunnel","supports multi-protocol （non-IP） traffic over the tunnel","reduces IPsec headers overhead since tunnel mode is used","simplifies the ACL used in the crypto map","uses Virtual Tunnel Interface （VTI） to simplify the IPsec VPN configuratio"]
During the modem boot process，how does the modem acquire the downstream channel？（） ["The modem is commanded by the CMTS to set to the specific channel","The modem uses the default value in the broadcom chipset","The modem tuner sets a level as defined by the DOCSIS specification","The modem tuner scans the downstream spectrum until digital QAM modulated signal is encountered"]
战国时期各国变法之后，除了王室，中国的民间社会基本采取“分户析产制”，即父母将家庭财产（尤其是土地）平均分配给每个儿子。这一制度（）。 ["颠覆了宗法制的传统","加速了小农经济的瓦解","促进了工商业的发展","提高了土地自由流转率"]
What is method list for configure aaa？
