BGP runs over a reliable transport (请作答此

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问题 BGP runs over a reliable transport (请作答此空).  This eliminates the need to implement explicit update fragmentation, retransmission, acknowledgement, and ( ).  Any authentication scheme used by the transport protocol may be used in addition to BGP's own ( )mechanisms.  The error notification mechanism used in BGP ( )that the transport protocol supports a “graceful” close,  i.e., that all outstanding data will be delivered ( )the connection is closed.A.protocolB.movingC.machineD.gateway

选项 A.protocol
B.moving
C.machine
D.gateway

答案 A

解析 bgp通过可靠的传输协议运行。这样就不需要实现显式的更新分段、重新传输,确认和排序。使用的任何身份验证方案除了bgp自己的身份验证机制之外,还可以使用传输协议的验证方案。bgp中采用的错误通知机制,假定传输协议支持“正常”关闭,也就是说,所有未完成的数据将在连接关闭之前交付。
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