【答案】:C 12、在 SQL 中,建立索引用( )。 SCHEMA 命令 TABLE 命令 VIEW 命令 INDEX 命令 【答案】:D 13、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.