【答案】:B 9、BGP runs over a reliable transport ( ). This eliminates the need to implement explicit update fragmentation, retransmission, acknowledgement, and (请作答此空). 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, ., that all outstanding data will be delivered ( )the connection is closed.
【答案】:D 10、在操作系统中,对信号量 S 的 P 原语操作定义中,使进程进入相应等待队列等待的条件是( )。