Examine the following command used to perform incremental level 0 backup: RMAN> BACKUP INCREMENTAL LEVEL 0 DATABASE; To enable the block change tracking, after the incremental level 0 backup you issued the following command: SQL> ALTER DATABASE ENABLE BLOCK CHANGE TRACKING USING FILE '/mydir/ rman_change_track.f'; To perform incremental level 1 cumulative backup, you issued the following command: RMAN> BACKUP INCREMENTAL LEVEL 1 CUMULATIVE DATABASE; Which two statements are true in the above situation?（） 正确。 错误。
A customer has 6.5 TB with 146 GB 15k disk drives on an IBM System Storage DS8700. They want to add 15 TB using 300 GB 15k disk drives. The customer is concerned about performance and wants to know if the DS8700 has the performance capability. What is the appropriate way to model the performance（） 正确。 错误。
在使用坡口机时，要使（）同心。 正确。 错误。
应用系统促进发展需要（） 正确。 错误。
Which command displays the number of packets transmitted for each NIC available on the system?（） 正确。 错误。
DS5000系列支持超过16TB的逻辑卷。
