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What are the two advantages of RMAN Block Media Recovery （BM

题目
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What are the two advantages of RMAN Block Media Recovery （BMR） over file/x7flevel recovery？（）
A

BMR lowers the mean time to recover （MTTR）.

B

BMR supports point­in­time recovery of individual data blocks.

C

BMR enables you to use incremental backups for block recovery.

D

BMR enables recovery even when the database is not mounted or open.

E

BMR enables you to use proxy backups to perform block media recovery.

F

BMR enables increased availability of data during recovery because the data file that requires a recovery can remain online.

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相似问题和答案

第1题：

Indentify two advantages of using recovery catalog instead of the control file of the database in RecoveryManager (RMAN).()(Choose two.)

A. You can use RMAN stored scripts

B. Recovery is faster if data is stored in catalog in addition to the control file

C. You can store backup information of all registered databases in one place

D. Database backups are automatically deleted when they are older than the specified time period


参考答案：A, C

第2题：

Which of the following statements is NOT true about RMAN？（）

  • A、It improves usability by enabling you to reuse the scripts to perform recovery operations.
  • B、It detects block corruption while restoration and recovery operations.
  • C、It enables you to perform block media recovery.
  • D、It is capable to recover through unrecoverable operations， with only full database backups.

正确答案:A

第3题：

Indentify two advantages of using recovery catalog instead of the control file of the database in Recovery Manager (RMAN)?()

A. You can use RMAN stored scripts

B. Recovery is faster if data is stored in catalog in addition to the control file

C. You can store backup information of all registered databases in one place

D. Database backups are automatically deleted when they are older than the specified time period


参考答案：A, C

第4题：

What are the two advantages of RMAN Block Media Recovery （BMR） over file/x7flevel recovery？（）

  • A、BMR lowers the mean time to recover （MTTR）.
  • B、BMR supports point­in­time recovery of individual data blocks.
  • C、BMR enables you to use incremental backups for block recovery.
  • D、BMR enables recovery even when the database is not mounted or open.
  • E、BMR enables you to use proxy backups to perform block media recovery.
  • F、BMR enables increased availability of data during recovery because the data file that requires a recovery can remain online.

正确答案:A,F

第5题：

You defined the Recovery Manager （RMAN） retention policy to recovery window of 7 days by executing the following command：  RMAN> CONFIGURE RETENTION POLICY TO RECOVERY WINDOW OF 7 DAYS；  When a backup is performed， what would be the status of this backup after seven days？（）

  • A、 The backup would be marked as invalid.
  • B、 The backup would be marked as obsolete.
  • C、 The backup would be removed from the media.
  • D、 The backup would be removed from the RMAN repository.

正确答案:B

第6题：

You need to perform a block media recovery on the tools01.dbf data file in the SALES database by using Recovery Manager (RMAN).Which two are the prerequisites to perform this operation? ()(Choose two)

A. You must configure block change tracking file

B. You must have first level 1 backups for RMAN to restore blocks

C. You must ensure that the SALES database is mounted or open

D. You must have full or level 0 backups for RMAN to restore blocks

E. You must take the tools01.dbf data file offline before you start a block media recovery


参考答案：C, D

第7题：

Identity two advantages of using a recovery catalog in-load of the control File of the target database Recovery Manager （RMAN）.（）

  • A、 You can use RMAN stored scripts.
  • B、 Recovery is faster if data is stored in catalog in addition to the control file.
  • C、 You can store backup Information of all registered databases in one place.
  • D、 Database backups are automatically deleted when they are older than the specified time period.

正确答案:A,C

第8题：

You need to perform a block media recovery on the tools01.dbf data file in the SALES database by using Recovery Manager (RMAN).Which two are the prerequisites to perform this operation?()

A. You must configure block change tracking file

B. You must have first level 1 backups for RMAN to restore blocks

C. You must ensure that the SALES database is mounted or open

D. You must have full or level 0 backups for RMAN to restore blocks

E. You must take the tools01.dbf data file offline before you start a block media recovery


参考答案：C, D

第9题：

Which of the following are correct about block media recovery？（）

  • A、 Physical and logical block corruption is recorded automatically in V$DATABASE_BLOCK_ CORRUPTION
  • B、 Logical corruptions are repairable by BMR
  • C、 Physical corruptions are repairable by BMR
  • D、 RMAN can use any backup for a BMR restore
  • E、 ARCHIVELOG mode is not required if you have both a full and incremental backup for restore

正确答案:A,C

第10题：

You issue the following RMAN command to set a retention policy on a database：       RMAN>CONFIGURE RETENTION POLICY TO REDUNDANCY 2；   What will be the outcome of the above command？（）

  • A、 After two days， the backup will be marked obsolete.
  • B、 After two days， the backup will be deleted from the media.
  • C、 If the RMAN repository has records of two or more recent backups of a file， then the older backup will be deleted from the media.
  • D、 If the RMAN repository has records of two or more recent backups of a file， then the older backup will be marked obsolete.

正确答案:D

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