对重要用户的停电应提前（）天通知。
Immediately after adding a new disk to or removing an existing disk from an Automatic StorageManagement （ASM） instance， you find that the performance of the database decreases initially， until the addition or removal process is completed. Performance then gradually returns to normal levels. Which two activities could you perform to maintain a consistent performance of the database while adding or removing disks？（） ["increase the number of checkpoint processes","define the POWER option while adding or removing the disks","increase the number of DBWR processes by setting up a higher value for DB_WRITER_PROCESSES","increase the number of slave database writer processes by setting up a higher value for DBWR_IO_SLAVES","increase the number of ASM Rebalance processes by setting up a higher value for ASM_POWER_LIMIT during the disk addition or removal proce"]
You want to move all objects of the APPS user in the test database to the DB_USER schema of the productiondatabase. Which option of IMPDP would you use to accomplish this task（） ["FULL","SCHEMAS","TRANSFORM","REMAP_SCHEMA","REMAP_TABLESPACE"]
基本养老保险基金逐步实行全国统筹，其他社会保险基金逐步实行省级统筹，具体时间、步骤由国务院规定。
A customer wants to create backups at a remotely located datacenter. Price and performance are of primary importance， so backup to disks at the remote location is selected instead of tape. The remote location is 1 KM （0.6 Miles） away from the data center. NAS is the solution being considered. Which of the following is the benefit of this solution？（） ["NAS runs on 2Gb fibre， which will provide better performance.","NAS uses WAN infrastructure， which can easily span the 1 KM gap.","NAS requires fibre storage， which allows dual paths for redundancy.","NAS requires iSCSI routers and offers better growth environment."]
现代篮球运动仍然是向（）、（）、（）、（）相结合的方向发展。
