There is a problem with one of the disks used for your database and your system administrator informs you that the disk needs to be replaced. The replacement disk will not be available until tomorrow. There was only one data file on this disk； it belongs to the USERS tablespace in your PROD database. Your PROD database runs in ARCHIVELOG mode and nightly online backups are taken. The users need to be able to access the data in the USERS tablespace before the replacement disk arrives. You have already taken the USERS tablespace offline and have restored the data file from last night’s backup to a new disk. Which additional steps are required in order to make the USERS tablespace available？（）
第1题：
Your database is running in ARCHIVELOG mode. One of the data files,USERDATA01.dbf, in the USERS tablespace is damaged and you need to recover the file until the point of failure. The backup for the datafile is available. Which three files would be used in the user-managed recovery process performed by the database administrator (DBA)?（）
第2题：
Your database is running in ARCHIVELOG mode. One of the data files, USERDATA01.dbf, in the USERS tablespace is damaged and you need to recover the file until the point of failure. The backup for the datafile is available. Which three files would be used in the user-managed recovery process performed by the database administrator （）(DBA)? (Choose Three)
第3题：
You are managing an Oracle Database 11g ASM instance with a disk group dg01 having three disks. One of the disks in the disk group becomes unavailable because of power failure. You issued the following command to change the DISK_REPAIR_TIME attribute from 3.6 hours to 5 hours:ALTER DISKGROUP dg01 SET ATTRIBUTE ‘disk_repair_time‘ = ‘5h‘;To which disks in the disk group will the new value be applicable?（）
A. all disks in the disk group
B. all disks that are currently in OFFLINE mode
C. all disks that are not currently in OFFLINE mode
D. all disks in the disk group only if all of them are ONLINE
第4题：
You work as a database administrator for Certkiller .com. Your database is in NOARCHIVELOG mode. The database has been configured with three redo logs groups， and there have been five log switches. You lost one non-system-critical data file from your database. Which method would you use to recover the data file？（）
第5题：
You are managing an Oracle Database 11g ASM instance with a disk group dg01 having three disks. One of the disks in the disk group becomes unavailable because of power failure. You issued the following command to change the DISK_REPAIR_TIME attribute from 3.6 hours to 5 hours: ALTER DISKGROUP dg01 SET ATTRIBUTE 'disk_repair_time' = '5h'; To which disks in the disk group will the new value be applicable?（）
第6题：
You ran out of space and added a eighth disk to your SCSI-1 system. When you try to start， the system no longer boots. What is most likely the cause of this problem？（）
第7题：
Your database is running In ARCIIIVELOG mode. One of the data files， USBRDATAOI. DBF， in the users tablespace is damaged and you need to recover the file until the point of failure. The backup for the data file is available. Which three files would be used in the user-managed recovery process performed by the database administrator （DBA）？（）
第8题：
A data file became corrupted in your database due to bad sectors on the disk. Because of corruption， you lost all the important tables in that data file. Which method would you use for recovery？（）
第9题：
You are using an Automatic Storage Management （ASM） instance to manage the files of your production database. You have two disk groups， DG1 and DG2， with one device each. In the parameter file of the production database， the following parameters have been specified： DB_CREATE_ONLINE_LOG_DEST_1 = ’+dg1’ DB_CREATE_ONLINE_LOG_DEST_2 = ’+dg2’ What would be the impact of this setting？（）
第10题：
A data file become corrupted in your database due to bad sectors on the disk. Because of corruption， you lost all the important tables in that data file. Which method would you use for recovery？（）