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1.What statement is true about taking a database default temporary tablespace offline?
A.You cannot take a default temporary tablespace offline.
B.The database must be quiesced before you perform this action.
C.You must ensure that all users are assigned to an alternative temporary tablespace first.
D.You must first ensure that the default temporary tablespace has the permanent tablespace characteristic.
Correct:A
2.Consider this syntax: MERGE INTO t1 USING t2 ON (join predicate)?. What does the MERGE syntax do?
A.It performs a merge join of the row from T2 only if it doesn't exist in the T1 table.
B.It creates a natural join of tables T1 and T2 for all columns that have the same name.
C.It creates a Cartesian product of table T1 and table T2 for all columns that have the same name.
D.For each row from T2, it updates the row if it exists within table T1, otherwise it inserts the row into T1.
Correct:D
3.In what way are the two initialization parameters PGA_AGGREGATE_TARGET and WORKAREA_SIZE_POLICY related to each other?
A.The default value for PGA_AGGREGATE_TARGET depends on the setting of WORKAREA_SIZE_POLICY.
B.You must provide a nondefault value for PGA_AGGREGATE_TARGET before setting WORKAREA_SIZE_POLICY to the value AUTO.
C.The value of PGA_AGGREGATE_TARGET can only be changed dynamically (that is, when the instance is open) if the value of WORKAREA_SIZE_POLICY is set to AUTO.
D.You must provide a non-default value for PGA_AGGREGATE_TARGET before setting WORKAREA_SIZE_POLICY to the value MANUAL.
Correct:B
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