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1z0-043 问题列表
问题
多选题You used the following command in Recovery Manager （RMAN） as part of the recovery process： RESTORE CONTROLFILE FROM AUTOBACKUP； How does RMAN find the control file autobackup？（）ABy using the trace file.BBy using the alert log file.CBy using the database IDDBy using the server parameter file.EBy using the V$CONTROLFILE view.FBy using the autobackup format configuration setting.
问题
单选题Consider the following command to add a new disk group called "tdgroupA" with two failover groups： CREATE DISKGROUP tdgroupA NORMAL REDUNDANCY FAILOVERGROUP control01 DISK ’/devices/A1’， ’/devices/A2’， ’/devices/A3’ FAILOVERGROUP control02 DISK ’/devices/B1’， ’/devices/B2’， ’/devices/B3’m The disk "/devices/A1" is currently a member disk of a disk group by the name "tdgroup1". Which task would be accomplished by the command？（）A
This command would result in an error because a disk group can have only one failover group.B
This command would result in an error because the /devices/A1 disk is a member of another disk group tdgroup1.C
A new disk group called tdgroupA will be added with two failover groups and the /devices/A1 disk will get reattached to the new disk group without being detached from the existing one.D
A new disk group called tdgroupA will be added with two failover groups and the /devices/A1 disk will be ignored for the new disk group because it is a member of an existing disk group tdgroup1.E
A new disk group called tdgroupA will be added with two failover groups and the /devices/A1 disk gets detached from the existing disk group tdgroup1 and attached to the new disk group tdgroupA
问题
单选题You enabled the flashback logging feature， but you have not specified the location of the flash recovery area. Which location would be used as the default location for the flash recovery area？（）A
the location used for control filesB
the location used for redo log filesC
the location set by using $ORACLE_BASED
the location set by using $ORACLE_HOMEE
the location set by using CORE_DUMP_DESTF
the location set by using BACKGROUND_DUMP_DEST
问题
多选题You have set the value of the NLS_TIMESTAMP_TZ_FORMAT parameter in the parameter file to YYYY-MM-DD. The default format of which two data types would be affected by this setting？ （）ADATEBTIMESTAMPCINTERVAL YEAR TO MONTHDINTERVAL DAY TO SECONDETIMESTAMP WITH LOCAL TIME ZONE
问题
单选题On Monday， you dropped the DEPT table from your schema and then you re-created the DEPT table in your schema. On Wednesday， you have a requirement to restore the DEPT table from the recycle bin. Which statement is correct？（）A
You can restore the DEPT table by using the Oracle Flashback Drop feature， provided you use the RENAME TO clause.B
You can restore the DEPT table by using the Oracle Flashback Drop feature and a system-generated name will be assigned to the restored table.C
You cannot restore the DEPT table by using the Oracle Flashback Drop feature because a table with the name DEPT already exists in your schema.D
You cannot restore the DEPT table by using the Oracle Flashback Drop feature because the contents of the recycle bin are purged every 12 hours by default.
问题
多选题You have configured Automatic Shared Memory Management. Which four memory structures would be automatically tuned？ （）Alog bufferBJava poolCLarge poolDFixed SGAEShared poolFStreams poolGKeep buffer cacheHDatabase buffer cache
问题
单选题You have specified the warning and critical threshold values of an application tablespace to be 60% and 70%， respectively. From the tablespace space usage metrics， you find that the actual space usage has reached the specified warning threshold value， but no alerts have been generated. What could be the reason for this？（）A
The EVENT parameter was not set.B
The SQL_TRACE parameter is set to FALSEC
The Enterprise Manager Grid Control is not used.D
The STATISTICS_LEVEL parameter is set to BASICE
The TIMED_STATISTICS parameter is set to FALSE
问题
单选题You have specified the warning and critical threshold values of an application tablespace to be 60% and 70%， respectively. From the tablespace space usage metrics， you find that the actual space usage has reached the specified warning threshold value， but no alerts have been generated. What could be the reason for this？（）A
The EVENT parameter was not set.B
The SQL_TRACE parameter is set to FALSEC
The Enterprise Manager Grid Control is not used.D
The STATISTICS_LEVEL parameter is set to BASICE
The TIMED_STATISTICS parameter is set to FALSE
问题
单选题You want to estimate the size of a table by using the Oracle Enterprise Manager. On which data is the size of the table NOT based？（）A
column sizesB
column data typesC
PCTFREED
projected number of rowE
PCTUSED
问题
单选题A redo log file is corrupted while the database is open； as a consequence， database operations are stopped because archiving cannot continue. What would you do to solve the problem？（）A
clear the redo log groupB
perform redo log file importC
perform an incomplete recoveryD
perform a redo log recovery using Recovery Manager （RMAN）E
shut down the database and open the database in the NOARCHIVELOG mode
问题
单选题In which of the following scenarios is a tablespace recovery required？（）A
when recovering a lost read-only tablespace from a read-only tablespace backupB
when recovering a lost read-only tablespace from a read-write tablespace backup when the database is running in ARCHIVELOG modeC
when recovering a lost read-only tablespace from a read-write tablespace backup when the database is running in NOARCHIVELOG mode and the changes in the online redo log files have been overwrittenD
when recovering a lost read-only tablespace from a read-only tablespace backup using the backup of the control file， the control file was created using the ALTER DATABASE BACKUP CONTROLFILE TO TRACE statement， and this statement was issued when the tablespace was read-only
问题
多选题You are connected to Recovery Manager （RMAN） without a recovery catalog. There is no copy of the control file available. You want to restore the control file from an autobackup. To retrieve the autobackup， you need the database ID （DBID）. In which two sources would you find the DBID？ （）Athe alert log fileBthe server parameter fileCthe formatted name of a control file autobackupDan RMAN session log fileEthe trace file
问题
单选题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.
问题
单选题A junior level Database Administrator erroneously deleted the database alert log while users were accessing the database. Which action should you take to recover the alert log？（）A
Do nothing.B
Restart the database.C
Perform recovery on the database.D
Restore the alert log from the last backup.
问题
单选题You are maintaining the PROD database of NetFx Corporation. You set the value of the SQL_TRACE parameter to TRUE. What will be the impact of this setting？（）A
The SQL trace facility will generate the performance statistics for all the SQL statements for an instance and write them in the USER_DUMP_DEST directory.B
The SQL trace facility will generate the performance statistics for all the SQL statements for a session and write them in the USER_DUMP_DEST directory.C
The SQL trace facility will generate the performance statistics for all the SQL statements for an instance and write them in the BACKGROUND_DUMP_DEST directory.D
The SQL trace facility will generate the performance statistics for all the SQL statements for a session and write them in the BACKGROUND_DUMP_DEST directory.