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单选题
You are using the DBVERIFY utility to check the datafiles for any block corruption. You want to write the output of the dbv command to a file not to the screen. Which parameter of the DBVERIFY utility will you use?()
A
FILE
B
PARFILE
C
LOGFILE
D
FEEDBACK
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You have lost all your database control files. To recover them, you are going to use the results of the alter database backup controlfile to trace command. Your datafiles and your online redo logs are all intact. Which of the following is true regarding your recovery?() A、 You will need to open the database with the resetlogs command.B、 All you need to do is execute the trace file from SQL*Plus and it will perform the recovery for you.C、 You will use the resetlogs version of the create controlfile command.D、 You will use the noresetlogs version of the create controlfile command.E、 You will use the trace file to create a backup control file, and then you will recover the database with the recover database using backup controlfile command
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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You need to check the EMP_EAST partition in the EMPLOYEES table for physical corruptions. You also need to verify that the rows belong to the correct partition. Which option could you use?()A
LogMinerB
The DBNEWID utilityC
The DBVERIFY utilityD
The ANALYZE commandE
The RMAN REPORT commandF
The RMAN CROSSCHECK command.G
The RMAN BLOCKRECOVER command.
考题
单选题There was media failure and you need to check the data files for any block corruption. Which option would you use to create a report on any corruptions found within the database?()A
the DBNEWID utilityB
the DBVERIFY utilityC
the ANALYZE commandD
the RMAN REPORT commandE
the RMAN CROSSCHECK commandF
the CHECK_OBJECT procedure of the DBMS_REPAIR package
考题
单选题You want to check the EMP table in the user, Scott’s schema for block corruption. You also want to fix the corrupted blocks, if any. How will you accomplish the required task?()A
by using the ANALYZE utilityB
by using the DBVERIFY utilityC
by using the DB_BLOCK_CHECKING parameterD
by using the DBMS_REPAIR package
考题
单选题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.
考题
单选题You are maintaining the database in Oracle10g. You are performing an incomplete recovery by using RMAN because an important table, EMPLOYEE, is dropped and purged from the Recycle Bin. Which statement is NOT true regarding an incomplete recovery?()A
The target database must be in the MOUNT mode to ensure restoration of the datafiles.B
You can restore the datafiles from the backup by using the RMAN utility only if the backups were taken using the RMAN utility.C
The control file must be recreated.D
The database must be opened with the RESETLOGS option.
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
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单选题Using vi, you want to save changes to the file myfile with :w!, but vi complains it cannot write to the file. Therefore, you want to check the write permissions on the file. To do this without leaving vi, you type:()A
:!ls-I myfileB
:/ls-l myfileC
esc :Is -I myfileD
:?ls-l myfile
考题
单选题The datafiles of your database are ASM files. You are performing a check for datafile block corruption by using the DBVERIFY utility. What is a prerequisite for checking block corruption on an ASM datafile by using the DBVERIFY utility?()A
The block change tracking feature must be enabled.B
OMF must be configured on your database.C
The database must be in ARCHIVELOG mode.D
A USERID must be supplied.
考题
单选题You want to check all the data blocks being written to the datafiles by analyzing the data on each block every time the DBWn process writes. Which action will you perform to check the data blocks?()A
Set the value of the DB_BLOCK_CHECKING initialization parameter to TRUEB
Use the ANALYZE utility.C
Use the DBVERIFY utility.D
Use the DBMS_REPAIR package.
考题
单选题You have lost all your database control files. To recover them, you are going to use the results of the alter database backup controlfile to trace command. Your datafiles and your online redo logs are all intact. Which of the following is true regarding your recovery?()A
You will need to open the database with the resetlogs command.B
All you need to do is execute the trace file from SQL*Plus and it will perform the recovery for you.C
You will use the resetlogs version of the create controlfile command.D
You will use the noresetlogs version of the create controlfile command.E
You will use the trace file to create a backup control file, and then you will recover the database with the recover database using backup controlfile command
考题
单选题You want your listener to be password protected to prevent it from being shut down. You want to accomplish this task while the listener is functional. Which method could you use to achieve this objective?()A
Use the CHANGE_PASSWORD command of the Listener control utility.B
Use the SET PASSWORD and SAVE_CONFIG commands of the Listener control utility.C
Use the CHANGE_PASSWORD and SAVE_CONFIG commands of the Listener control utility.D
Manually modify the listener.ora file to include the password for the listener and restart the listener.
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