计算机网络 - 练习（二十四）

计算机网络练习二十四在面向对象的软件工程中一个组件component包含了。A. 所有的属性和操作B. 各个类的实例C. 每个设备或用户 (device or user) 的作用D. 一些协作的类的集合----------------------------------------答案D解析无在 BGP4 协议中路由器通过发送 (1) 报文将正常工作信息告知邻居。当出现路由信息的新增或删除时采用 (2) 报文告知对方。问题1A. helloB. updateC. keepaliveD. notification问题2A. helloB. updateC. keepaliveD. notification----------------------------------------答案CB解析在 BGP 协议中 keepalive 报文将正常工作信息告知邻居update 报文给出了新的路由信息。The Border Gateway Protocol (BGP) is an interautonomous system. 1protocol. The primary function of a BGP speaking system is to exchange network 2information with other BGP system. This network reachability information includes information on the list of Autonomous System (ASs) that teachability information traverses. BGP-4 provides a new set of mechanisms for supporting 3interdomain routing. These mechanisms include support for advertising an IP 4and eliminate the concept of network class within BGP. BGP-4 also introduces mechanisms that allow aggregation of routes, including 5of AS paths. These changes provide support for the proposed supernettting scheme.问题1A. connectingB. resolvingC. routingD. supernetting问题2A. SecurityB. reachabilityC. capabilityD. reliability问题3A. confirmlessB. connectionlessC. answerlessD. classless问题4A. preflxB. suffixC. infixD. reflex问题5A. reservationB. relationC. aggregationD. connection----------------------------------------答案CBDAC解析边界网关协议 BGP 是自治系统间的路由协议。BGP 发布系统的基本功能就是与其他 BGP 系统交换网络可到达性信息。这种网络可到达性信息包含了可到达性信息穿越的自治系统的列表。BGP-4 提供了一系列新的机制来支持无类别的域间路由。这些机制包括支持发布 IP前缀从而在 BGP 中排除了网络类别的概念。BGP-4 也引入了路由聚合机制包括 AS 通路的聚合。这些改变提供了对提议的超网方案的支持。相关内容转载自希赛网 app点我回顶部 ☚Fin.