A bank has requested proposals for a storage solution to upgrade their disaster recovery processes for their IBM System z， UNIX， and Microsoft Windows environment. The solution must simulate a multi-site environment and provide the customer the ability to evaluate Metro Mirror， Global Mirror， Global Mirror for z/OS， and FlashCopy. 120 TB physical capacity is required per site. Only Fibre Channel drives can be used. Which solution best meets the specified requirements（） two DS8700 systems with two-way processor cards and 600 GB FC drives。 two DS8700 systems with four-way processor cards and LPAR。 two DS8700 systems with two-way processor cards and two frames per system。 two DS8700 systems with four-way processor cards and two frames per system。
对肾母细胞瘤的描述，下列哪项是错误的（） 绝大多数发生于小儿，2-4岁最多见。 据统计95.6%发生于一侧肾脏。 肿瘤主要侵犯肾盂、肾盏，多出现血尿。 肿瘤一般为鸡蛋大到儿头大，圆形或椭圆形，有假包膜。 转移途径主要为淋巴和血行。
After the /etc/tunables/nextboot file has been edited, which command can be used to validate changes to the IO performance tuning settings?（） ioo -v nextboot。 ioo -c nextboot。 valcheck -f nextboot。 tuncheck -r -f nextboot。
A number of applications issue the following SQL statement:SELECT d.deptno, e.empno, e.salary FROM department d INNER JOIN employee e ON d.deptno = e.deptnoA database administrator wishes to store this query within the database. Which of the following database objects can be used to accomplish this?（） Alias。 View。 Schema。 Trigger。
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?（） The block change tracking data will be used only from the next incremental 0 backup.。 The incremental backup will use change tracking data for accomplishing the backup.。 The incremental backup will not use change tracking data for accomplishing the backup.。 The block track file will scan all the blocks and create bitmap for all the blocks backed up in the level 0 backup.。
自阀手柄在紧急制动位时，总风经主阀供气阀口、常用限压阀、紧急限压阀向（）充气。
