多项选择题
You are required to remove the default EXTPROC entry from the default listener configuration to create a listener that will listen specifically for EXTPROC calls. Which two methods can you use to remove the default EXTPROC entry from the default listener configuration？ （）
A. the RMAN utility
B. the import/export utility
C. the Oracle Enterprise Manager
D. the change tracking feature
E. the Net Manager utility
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单项选择题
You executed the following procedure to collect statistics regarding an index： SQL>ANALYZE INDEX EMP_ID VALIDATE STRUCTURE； Which view will you use to determine whether you need to rebuild the index or not？（）
A. INDEX_STATS
B. DBA_INDEXES
C. DBA_IND_COLUMNS
D. V$OBJECT_USAGE -
单项选择题
Theonlineredologgroupconfigurationforyourdatabaseisasfollows：Whatwillhappeniftheonlineredologfile’ora02/oradata/redo02b.log’iscorruptedwhileworkingonthedatabase？（）
A. The database will hang.
B. The database will be crashed.
C. The database will be shut down.
D. The LGWR process writes redo log entries to the other redo log member of the Group2 group -
单项选择题
Youaremaintainingadatabaseofcreditcardtransactions.YouwantthedatatobereturnedautomaticallyinthechronologicalorderofthecreditcardnumberswithoutusingtheORDERBYclauseinthequery.Whichtypeofclusterwillyouusetoobtainthedesiredresult？（）
A. Hash cluster
B. Index cluster
C. Sorted hash cluster
D. Real Application cluster
