Your database is open and running in ARCHIVELOG mode. You take RMAN full backups every Sunday night. On Monday morning， while querying the user1.employees table， you receive the following error message： 01578： ORACLE data block corrupted （file # 5， block # 51） ORA-01110： data file 5： ’/u01/app/oracle/oradata/orcl/example01.dbf’ You need to rectify the corruption while ensuring the following： The data file should remain online. The mean time to recover （MTTR） should be minimal. You are not using a backup control file， and all the archived logs are accessible. Which option would you choose？（） flash back the corrupted blocks。 use the DBMS_REPAIR package。 use the RMAN TSPITR command。 use the RMAN BLOCKRECOVER command。 use the RESTORE DATABASE and RECOVER DATABASE commands。 investigate the time at which the corruption occurred and perform a point-in-time recovery。
流程管理中为什么要考虑行政流程（） 客户要求。 运维管理在行政管理范畴。 行政管理在运维管理范畴。 行政流程中有涉及运维的相关管理要求，如考勤、报废等。
What advantages do WPARs have over LPARs？（） Security is isolated by the HMC。 Support Live Partition Mobility。 Operating system faults are isolated。 Reduced system management during upgrade。
“了解中学生世界观、人生观、价值观形成的过程及其教育方法”是教师应具备的通识性知识。
In your database instance， the user sessions are connected to the database server from the remote machines.You want to achieve the following for these users： 1. The user account must be locked after four unsuccessful login attempts. 2. The user must be prompted to change the password at regular intervals. 3. The user may not have more than three simultaneous sessions. 4. The user session must automatically be logged off if more than 10 minutes elapsed time used. How would you accomplish the above（） By assigning profiles for the users。 By implementing Fine-Grained Auditing （FGA）。 By granting a secure application role to the users。 By implementing the Database Resource Manager pla。
Which commands are used for RMAN database recovery？（）
