To enable faster incremental backups， you enabled block change tracking for the database. Which two statements are true about the block change tracking file？（） Multiple change tracking files can be created for a database.。 The change tracking file must be created after the first level 0 backup.。 RMAN does not support backup and recovery of the change tracking file.。 The database clears the change tracking file and starts tracking changes again，after whole database restore and recovery operations.。
一步生长曲线
当无圈梁和梁垫时，板、次梁与主梁交叉处钢筋的正确排位是（）。 主梁筋在上，次梁筋居中，板筋在下。 主梁筋居中，次梁筋在下，板筋在上。 主梁筋在下，次梁筋在上，板筋居中。 主梁筋在下，次梁筋居中，板筋在上。
Which of the following statements is TRUE about the reorgvg command?（） No logical volumes wil be moved if write-verify is set to yes.。 No action will be performed if it cannot fulfill the allocation requirements.。 Physical partitions of a logical volume will be moved if the logical volume's relocatable flag is set to "no".。 Physical partitions will be moved as close as possible to the positions specified, if the allocation requirements cannot be fulfilled.。
在分红保险中，当采用固定死亡率时，其不列入分红保险账号的收支项目包括（）等 佣金支出。 附加保费收入。 死亡保费收入。 管理费用支出。
An administrator is logged into a remote server using an Xwindows client and wants to use smit. The bandwidth for the remote connection is minimal， so the administrator would like to disable the graphical version of smit to speed up display updates. Which command will start smit in the non-graphical mode？（）
