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One of the most widely used routing prot

资格题库2022-08-02  66
问题 One of the most widely used routing protocols in IP networks is the Routing Information Protocol（RIP）。 RIP is the canonical example of a  routing protocol built on the（请作答此空）algorithm.Routing protocols in internetworks differ slightly from the idealized graph model.In an internetwork, the goal of the routers to forward packets to various （ ）.Routers running RIP send their advertisement about cost every （ ）  seconds.A router also sends an update message whenever an update from another router causes it to change its routing table.It is possible to use a range of different metrics or costs for the links in a routing protocol.RIP takes the simplest approach, with all link costs being equal （ ）。 Thus it always tries to find the minimum hop route.Valid distances are 1 through （ ）。This also limits RIP to running on fairly small networks.A.distance vectorB.link stateC.floodingD.minimum spanning tree
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答案 A
解析 IP网络中广泛使用的路由协议之一是路由信息协议（RIP）。RIP是基于路由算法的路由协议。网络中的路由协议与理想的图算法存在少量的差异。在互联网中，路由器的目的是将数据包转发给不同的。运行RIP协议的路由器每 秒广播一次路由信息，另外，每当路由器收到其他路由器的更新消息而导致其路由表变化时，就会发送更新消息。路由协议使用不同的度量或成本来建立连接是可能的。RIP采用了最简单的方法，所有链路的成本都等于  。这样，它总是试图寻找跳数最少的路径。有效的距离范围是从1到 。这也限制了RIP只能在相当小规模的网络上运行。
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软件水平考试初中高级

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