单项选择题

Yourdatabaseblocksizeis4KB.Inthisdatabase，youarerequire……

Your database block size is 4 KB. In this database， you are required to create a tablespace with a block size of 8 KB. Which is the prerequisite for creating this tablespace？（）

A. The parameter DB_CACHE_SIZE must be a multiple of 8.
B. The value of the parameter SGA_MAX_SIZE must be increased.
C. The tablespace must be created with a uniform extent size of 8 KB
D. The parameter DB_8K_CACHE_SIZE must be defined in the parameter file.

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单项选择题YouareshrinkingtheSCOTT.EMPtablebyexecutingtheALTERTABLESCOTT.EMPSHRINKSPACECASCADEstatement.WhatisaprerequisiteforshrinkingtheSCOTT.EMPtable？（）

A. You must enable the block change tracking feature.
B. You must have enable the flashback feature.
C. You must use the OMF in your database.
D. You must define the tablespace of the SCOTT.EMP table for automatic segment space management.

单项选择题YouaremaintainingyourdatabaseinOracle10g.YouhavesetthevalueoftheSTATISTICS_LEVELinitializationparametertoTYPICALandthevalueoftheFAST_START_MTTR_TARGETparameterto900seconds.Toincreasetheperformanceofthedatabase，youwanttodeterminethelogfilesizethatshouldequaltheminimumsizeofalltheonlineredologfiles.Whichcolumnwillenableyoutoperformthedesiredtask？（）

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A. The tablespace， DATA1， is not read-only.
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单项选择题YouareperformingtheshrinkoperationontheSCOTT.EMPtable.YouwanttoperformthesameoperationonalldependentobjectsoftheSCOTT.EMPtable.WhatisNOTaprerequisitefortheoperation？（）

A. You must enable the row movement on the SCOTT.EMP table.
B. You must define the tablespace of the SCOTT.EMP table for automatic segment space management.
C. You must use the CASCADE clause in the ALTER TABLE SHRINK SPACE statement.
D. You must use the COMPACT clause in the ALTER TABLE SHRINK SPACE statement.