【答案】:D 8、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】:D 13、以数组Data[m+1]作为循环队列SQ的存储空间,front为头指针,rear为队尾指针,则执行出队操作的语句是( )。 =front+1 =(front+1)%m =(front+1)%(m+1) =(rear+1)%m 【答案】:C 14、自然联接是构成新关系的有效方法。一般情况下,当对关系 R 和 S 是用自然连接时,要求 R 和 S 含有一个或者多个共有的( )。