200.Which operation requires that you create an auxiliary instance manually before executing the operation? (Choose all that apply.) A. Backup-based database duplication. B. Active database duplication. C. Tablespace point-in-time recovery. D. No ope…

Administer ASM disk groupsBack up the recovery catalogConfigure backup settingsConfigure, Monitor Flashback Database and Perform Flashback Database operationsCreate a job, program, and scheduleCreate a multisection,compressed and encrypted backupCrea…

101.Identify two situations in which you can use Data Recovery Advisor for recovery. (Choose two.) A. The user has dropped an important table that needs to be recovered. B. The database files are corrupted when the database is open. C. You are not ab…

501.Note the output of the following query;SQL> SELECT flashback_archieve_name, status FROM dba_flashback_archieve;FLASHBACK_ARCHIEVE_NAME STATUSFLA1You executed the following command to enable Flashback Data Archive on the EXCHANGB_PATE table:ALTER…

401.Which of the following are correct about block media recovery? (Choose all that apply.)A. Physical and logical block corruption is recorded automatically in V$DATABASE_BLOCK_CORRUPTION.B. Logical corruptions are repairable by BMR.C. Physical corr…

327.You have a database with the following tablespaces: SYSTEM, SYSAUX, UNDO, USERS, TEMP.You want to"roll back" the data in the USERS tablespace to the way it looked yesterday. Whichtablespaces do you need to perform a point-in-time restore ope…

601.You need to perform a block media recovery on the tools01.dbf data file in the SALES database byusing Recovery Manager (RMAN).Which two are the prerequisites to perform this operation? (Choose two)A. You must configure block change tracking fileB…

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SGA 1. 什么是LRULRU表示Least Recently Used,也就是指最近最少使用的buffer header链表LRU链表串联起来的buffer header都指向可用数据块 2. 什么是检查点队列就是将脏块按照修改的时间顺序排列 3. 什么是mmanMemory Manager (MMAN)内存管理进程 一:buffer cache: 1.作用:缓存最近使用过的数据块 2.管理方式:LRU和检查点队列 3.buffer的状态: 已连接:当前正将该块读入高速缓存或正在写入该块,其…

数据库恢复顾问 Data Recovery Advisor的命令行选项 1. 启动 RMAN 进程并连接到目标$ rman target=/ 2. 假设发生了某个错误,希望找出原因,使用 list failure 命令: RMAN> list failure; 如果没有错误,该命令将返回以下消息:no failures found that match specification 如果有错误,将显示如下更具说明性的消息:142 HIGH OPEN 15-JUL-07 One or more no…