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A.Thelistenerisnotrunningonthedatabasenode.
B.TheTNS_ADMINenvironmentalvariableissettoawrongvalue.
C.Theorcl.oracle.comdatabaseserviceisnotregisteredwiththelistener.
D.TheDEFAULT_DOMAINparameterissettoawrongvalueinthesqlnet.orafile.
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A. To simplify the process of creating new users using the CREATE USER xxx IDENTIFIED by yyy statement.
B. To grant a group of relate privileges to a user.
C. When the number of people using the database is very high.
D. To simplify the process of granting and revoking privileges.
E. To simplify profile maintenance for a user who is constantly traveling.
A. Because row IDs may change during the flashback operation
B. Because the object number changes after the flashback operation
C. Because the rows are retrieved from the recycle bin during the flashback operation
D. Because the table is moved forward and back to a temporary during the flashback operation
A.SetOPTIMIZER_USE_PLAN_BASELINEStoFALSEtopreventtheuseofregressedplans.
B.CapturetheplansfromthepreviousversionusingSTSandthenloadthemintothestoredoutline.
C.CapturetheplansfromthepreviousversionusingSTSandthenloadthemintoSQLManagementBase（SMB）
D.SetOPTIMIZER_CAPTURE_SQL_PLAN_BASELINEStoFALSEtopreventtheplansfrombeing loadedtotheSQLplanbaseline.
A.None.Thedatabasewillswitchovertothestand-byarchive-logdestinationdirectory.
B.Awarningmessagewillbewrittentothealertlogofthedatabase,butnoadverseimpactstothedatabasewillbeexperienced.
C.Thedatabasewillshutdown,andwillnotrestartuntilyoucorrecttheout-of-spacesituation.
D.Thedatabasewillcontinuetotrytowritetothearchive-logdestinationdirectoryforonehour.Afteronehour,thedatabasewillshutdownnormally.
E.OnceOraclehascycledthroughallonlineredologs,itwillstopprocessinganyDMLorDDLuntiltheout-of-spaceconditioniscorrected.
A. SELECT city_address, COUNT(*) FROM customers WHERE city _ address IN (‘Los Angeles‘,‘San Fransisco‘);
B. SELECT city_address, COUNT (*) FROM customers WHERE city address IN ( ‘Los Angeles‘, ‘San Fransisco‘) GROUP BY city_address;
C. SELECT city_address, COUNT(customer_id) FROM customers WHERE city_address IN ( ‘Los Angeles‘, ‘San Fransisco‘) GROUP BY city_address, customer_ id;
D. SELECT city_address, COUNT (customer_id) FROM customers GROUP BY city_ address IN (‘Los Angeles‘,‘San Fransisco‘);
A.ThedatabasesconfiguredtousetheASMinstancearemounted
B.ThediskgroupsaremountedaspertheASM_DISKGROUPSinitializationparameter
C.ASMstartstheOracleClusterSynchronizationServices（CSS）daemonifitisnotstarted
D.ASMdiscoversandexaminesthecontentsofallfilesthatareinthepathsspecifiedinthe ASM_DISKGROUPSinitializationparameters
A.peep
B.bark
C.meow
D.Compilation fails.
E.An exception is thrown at runtime.
A. completes a transaction on a table
B. modifies the structure and data in a table
C. modifies the data but not the structure of a table
D. modifies the structure but not the data of a table
A. CREATE INDEX NAME_IDX (first_name, last_name);
B. CREATE INDEX NAME_IDX (first_name AND last_name);
C. CREATE INDEX NAME_IDX ON (first_name, last_name);
D. CREATE INDEX NAME_IDX ON employees (first_name AND last_name);
E. CREATE INDEX NAME_IDX ON employees(first_name, last_name);
F. CREATE INDEX NAME_IDX FOR employees(first_name, last_name);
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