Refer to the network of Layer 3 switches in the exhibit. The RPI Multi cast Server only multicasts to hosts connected to multilayer switches 5 and 6. The CMU Multicast Server multicasts to hosts on multilayer switches 1 - 6. Given the number of configuration steps involved, what is the most efficient way to configure the net work while meeting the requirements for multicast data flow? （） Configure each switch with PIM sparse mode and a separate instance of PIM dense mode.Specify switch 1 as the root for the RPI Multicast Server. Specify switch 2 as the root for the CMU Multicast Server.。 Configure each switch with PIM sparse mode and a separate instance of PIM dense mode. Leave each multicast server as the root of its own multicast tree.。 Configure each switch with PIM sparse - dense mode. Configure switch 3 as a ren dezvous point for the RPI multicast stream.。 Configure each switch with PIM sparse mode and a separate instance of PIM dense mode.Allow the switches to elect their own root for each multicast tree.。 Configure each switch with PIM sparse mode.。 Configure each switch with PIM dense mode.。
城市快速路的设计使用年限为（）年。 A、20 。 B、5 。 C、15 。 D、10。
经办行于每年（）月底前，统计汇总上一年度实际发放的国家助学贷款金额和违约率，经合作高校确认后上报分行，分行汇总后在5个工作日内上报总行，总行提交全国学生贷款管理中心。 3。 6。 9。 12。
客户端中影响疫苗预约的主要因素是什么？
谈谈如何端正入党动机，做到在思想上入党？
我国经济体制改革的中心环节是（）。
