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While working on the database， you receive the following error： 01578： ORACLE data block corrupted （file# 6， block # 54） ORA-01110 ： data file 6： ’u01/oracle/oradata/data1.dbf’ You decide to recover the corrupted data block by using the Block Media Recovery feature. Which option is NOT a disadvantage of using block media recovery？（）
- A、 Block Media Recovery must be used with RMAN.
- B、 You must perform complete recovery of individual blocks.
- C、 You must have a full RMAN backup， not an incremental backup.
- D、 You must use the DBVERIFY utility before using the Block Media Recovery feature.
参考答案
更多 “ While working on the database， you receive the following error： 01578： ORACLE data block corrupted （file# 6， block # 54） ORA-01110 ： data file 6： ’u01/oracle/oradata/data1.dbf’ You decide to recover the corrupted data block by using the Block Media Recovery feature. Which option is NOT a disadvantage of using block media recovery？（）A、 Block Media Recovery must be used with RMAN.B、 You must perform complete recovery of individual blocks.C、 You must have a full RMAN backup， not an incremental backup.D、 You must use the DBVERIFY utility before using the Block Media Recovery feature.” 相关考题
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The DB_BLOCK_CHECKING initialization parameter is set to OFF.Which block checking would be performed?()
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You executed the following command： RMAN RECOVER COPY OF DATAFILE ’/u01/app/oracle/oradata/orcl/users01.dbf’； Which statement regarding the above command is correct？（） A、 The ’/u01/app/oracle/oradata/orcl/users01.dbf’ data file is recovered from the image copy.B、 The ’/u01/app/oracle/oradata/orcl/users01.dbf’ data file is recovered from the last incremental backup.C、 Image copies of the ’/u01/app/oracle/oradata/orcl/users01.dbf’ data file are updated with all changes up to incremental backup SCN.D、 Image copies of the ’/u01/app/oracle/oradata/orcl/users01.dbf’ data file are recovered using the above command if data file recovery fails.
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You executed the following command: RMAN RECOVER COPY OF DATAFILE '/u01/app/oracle/oradata/orcl/users01.dbf'; Which statement regarding the above command is correct?（）A、The '/u01/app/oracle/oradata/orcl/users01.dbf' data file is recovered from the image copyB、The '/u01/app/oracle/oradata/orcl/users01.dbf' data file is recovered from the last incremental backupC、 Image copies of the '/u01/app/oracle/oradata/orcl/users01.dbf' data file are updated with all changes up to incremental backup SCN. '/ u01/app/oracle/oradata/orcl/users01.dbfD、Image copies of the '/u01/app/oracle/oradata/orcl/users01.dbf' data file are recovered using the above command if data file recovery fails
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You issued the following command to analyze the SCOTT.EMP table for block corruption： ANALYZE TABLE SCOTT.EMP VALIDATE STRUCTURE； You received the following error： ORA-01578： ORACLE data block corrupted （file # %s， block # %s） How will you resolve the block corruption problem？（）A、 by using the DBMS_REPAIR packageB、 by using the DB_BLOCK_CHECKING parameterC、 by using the DBVERIFY utilityD、 will not be completely resolved until the hardware fault is corrected
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While querying the EMPLOYEES table， you receive an ORA-01578 message indicating block corruption in File# 1201 and Block# 1968. You analyze the table and the corruption is verified. Which RMAN command do you use to perform BMR and repair the corrupt block？（） A、 RECOVER FILE=1201 BLOCK=1968B、 RECOVER CORRUPTION LISTC、 RECOVER DATAFILE 1201 BLOCK 1968D、 RECOVER BLOCK CORRUPTION LISTE、 None of the above
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You are managing an Oracle Database 10g database that uses Oracle Managed Files （OMF）. You enabled the block change tracking feature for the database. Which statement regarding the change tracking file is true？（）A、 One block change tracking file is created for each data file. By default， the file is created in DB_CREATE_FILE_DEST.B、 One block change tracking file is created for each data file. By default， the file is created in BACKGROUND_DUMP_DEST.C、 One block change tracking file is created for the database. By default， the file is created in DB_CREATE_FILE_DEST.D、 One block change tracking file is created for the database. By default， the file is created in BACKGROUND_DUMP_DEST.
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You received the following error： ORA-01578： ORACLE data block corrupted （file # %s， block # %s） Which file will you check to view additional information regarding the cause of this error？（）A、the alert log file and the trace filesB、 the redo log filesC、 the control fileD、 the change tracking file
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You issue the following statement： SQL SELECT FIRSTNAME， LASTNAME FROM HR.EMPLOYEE； You receive the following error： 01578： ORACLE data block corrupted （file# 6， block # 54） ORA-01110 ： data file 6： ’u01/oracle/oradata/data1.dbf’ How will you resolve this problem of data block corruption by reducing the mean time to recover （MTTR）？（）A、 by using the DBMS_REPAIR packageB、 by using the DBVERIFY utilityC、 by using Block Media RecoveryD、 by issuing the ANALYZE TABLE HR.EMPLOYEES VALIDATE STRUCTURE command
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Users complain SQL statements using a particular index fail. Using DBVERIFY， you find that two separate blocks in the index have become corrupt. The database data files for user data and index are very large. What is the least disruptive recover strategy available in Oracle9i？（）A、Rebuild the index using the online option. B、Take the individual data file offline (not the whole tablespace), restore and recover the data file from backup with RMAN, then set the data file online again. C、Without setting the individual data file offline, use RMAN with Block Media Recovery to restore and recover only those blocks. D、Take the individual data file (not the whole tablespace) offline, use RMAN with Block Media Recovery to restore and recover only those blocks, then set the data file online again.
考题
Which three statements are true regarding the logical structure of the Oracle database？（）A、Each segment contains one or more extents.B、Multiple tablespaces can share single data file.C、A data block is the smallest unit of I/O for data files.D、It is possible to have tablespaces of different block sizes in a database.E、Each data block in the database always corresponds to one OS block.
考题
单选题You issue the following statement： SQL SELECT FIRSTNAME， LASTNAME FROM HR.EMPLOYEE； You receive the following error： 01578： ORACLE data block corrupted （file# 6， block # 54） ORA-01110 ： data file 6： ’u01/oracle/oradata/data1.dbf’ How will you resolve this problem of data block corruption by reducing the mean time to recover （MTTR）？（）A
by using the DBMS_REPAIR packageB
by using the DBVERIFY utilityC
by using Block Media RecoveryD
by issuing the ANALYZE TABLE HR.EMPLOYEES VALIDATE STRUCTURE command
考题
单选题The DB_BLOCK_CHECKING initialization parameter is set to OFF. 数据库块检测初始化参数被设定为关 Which block checking would be performed?（）A
The Oracle database will perform block checking for the index blocks only B
The Oracle database will not perform block checking for any of the data blocks C
The Oracle database will perform block checking for the default permanent tablespace only D
The Oracle database will perform block checking for the data blocks in all user tablespaces E
The Oracle database will perform block checking for the data blocks in the SYSTEM tablespace only Oracle
考题
单选题You issued the following command to analyze the SCOTT.EMP table for block corruption： ANALYZE TABLE SCOTT.EMP VALIDATE STRUCTURE； You received the following error： ORA-01578： ORACLE data block corrupted （file # %s， block # %s） How will you resolve the block corruption problem？（）A
by using the DBMS_REPAIR packageB
by using the DB_BLOCK_CHECKING parameterC
by using the DBVERIFY utilityD
will not be completely resolved until the hardware fault is corrected
考题
单选题The DB_BLOCK_CHECKING initialization parameter is set to FALSE. What level of block checking would be performed？（）A
The Oracle database will not perform block checking for any of the data blocks.B
The Oracle database will perform block checking for the default permanent tablespace only. C
The Oracle database will perform block checking for the data blocks in all user tablespaces.D
The Oracle database will perform block checking for the data blocks in the SYSTEM tablespace only.E
The Oracle database will perform block checking for the data blocks in the SYSTEM and SYSAUX tablespaces.
考题
多选题While querying the EMPLOYEES table， you receive an ORA-01578 message indicating block corruption in File# 1201 and Block# 1968. You analyze the table and the corruption is verified. Which RMAN command do you use to perform BMR and repair the corrupt block？（）ARECOVER FILE=1201 BLOCK=1968BRECOVER CORRUPTION LISTCRECOVER DATAFILE 1201 BLOCK 1968DRECOVER BLOCK CORRUPTION LISTENone of the above
考题
单选题You received the following error： ORA-01578： ORACLE data block corrupted （file # %s， block # %s） Which file will you check to view additional information regarding the cause of this error？（）A
the alert log file and the trace filesB
the redo log filesC
the control fileD
the change tracking file
考题
单选题The DB_BLOCK_CHECKING initialization parameter is set to OFF. Which block checking would be performed？（）A
The Oracle database will perform block checking for the index blocks onlyB
The Oracle database will not perform block checking for any of the data blocksC
The Oracle database will perform block checking for the default permanent tablespace onlyD
The Oracle database will perform block checking for the data blocks in all user tablespacesE
The Oracle database will perform block checking for the data blocks in the SYSTEM tablespace only
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