【答案】:C 28、BGP runs over a reliable transport ( ). 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 (请作答此空)mechanisms. The error notification mechanism used in BGP ( )that the transport protocol supports a “graceful” close, ., that all outstanding data will be delivered ( )the connection is closed.
【答案】:C 29、现有一循环队列,其队头指针为 front,队尾指针为 rear;循环队列长度为 N。其队内有效长度为( )(假设队头不存放数据)。 A.(rear - front + N)% N + 1 B.(rear - front + N)% N C.(rear – front)%(N + 1) D.(rear - front + N)%(N – 1) 【答案】:B 30、所谓网络安全漏洞是指( )。