试题详情单项选择题At which layer of the OSI model does the Spanning Tree Protocol (STP) operate at?()A、Layer 5B、Layer 4C、Layer 3D、Layer 2E、Layer 1正确答案:D答案解析:关注下方微信公众号,在线模考后查看热门试题Drag the D光纤分布数据接口FDDI采用()拓扑结构Refer to t哪个命令可以在交换机启用RSTP?How do CRefer to t因为在生成路由表过程中,OSPF协议需要When a BYou have finished ph标准ACL的编号范围为()When a p当运行OSPF,什么会导致路由器A没有形Policy-based rWhat are 请参见图示。一台默认配置的交换机连接了四A network administraWhich QoS̳Router R1, in ASN 11In which 以下关于平面设计中“出血”的说法正确的是