题目内容

Youwanttoperformthedatabasebackupwhenuseractivityonyoursystemislow,suchasbetween12:00a.m.and2:00am.Whichcommandterminateswithanerrorifthebackupisnotcompleteattheendofthespecifiedduration？（）

A. RMAN＞BACKUPDURATION2:00MINIMIZELOADDATABASE
B. RMAN＞BACKUPDURATION2:00PARTIALFILESPERSET1DATABASE
C. RMAN＞BACKUPDURATION2:00PARTIALMINIMIZETIMEDATABASE
D. RMAN＞BACKUPASCOPYDURATION2:00PARTIALMINIMIZELOADDATABASE

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Whichcapabilityexistsonlyinjava.io.FileWriter？（）

A. Closinganopenstream.
B. Flushinganopenstream.
C. Writingtoanopenstream.
D. Writingalineseparatortoanopenstream.

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Given：1.packagetest；2.3.classTarget{4.publicStringname="hello"；5.}Whatcandirectlyaccessandchangethevalueofthevariablename？（）

A. anyclass
B. onlytheTargetclass
C. anyclassinthetestpackage
D. anyclassthatextendsTarget

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ExaminetheRMANcommand：SWITCHDATAFILE’/DISK3/user_data01.dbf’；Whichcommanddoyouneedtoissuebeforeyouissuetheabovecommand，sothatRMANfindsthefileintherestoredlocationof’DISK2/user_data01.dbf’？（）

A. RESTOREDATAFILE’/DISK2/user_data01.dbf’
B. RESTOREDATAFILE’/DISK3/user_data01.dbf’
C. SETNEWNAMEFOR’/DISK3/user_data01.dbf’TO’/DISK2/user_data01.dbf’
D. SETNEWNAMEFOR’/DISK2/user_data01.dbf’TO’/DISK3/user_data01.dbf’

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TherowsinsidethreeOracletablessupportingacustomerorderentrysystemarefrequentlyaccessedtogetherbymeansofatablejoin.Becausedataisalwaysbeingaddedtothetables,youleavealotofextraspaceinsideeachblocktoaccommodategrowth.Whichofthefollowingtypesoftableswouldbeusefulforstoringthedatainthiscontext？（）

A. Temporarytables
B. Index-organizedtables
Clustertables
D. StandardOracletables

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Youwanttoperformthedatabasebackupwhenuseractivityonyoursystemislow,suchasbetween12:00a.m.and2:00am.Whichcommandterminateswithanerrorifthebackupisnotcompleteattheendofthespecifiedduration？（）

A. RMAN＞BACKUPDURATION2:00MINIMIZELOADDATABASE B. RMAN＞BACKUPDURATION2:00PARTIALFILESPERSET1DATABASE C. RMAN＞BACKUPDURATION2:00PARTIALMINIMIZETIMEDATABASE D. RMAN＞BACKUPASCOPYDURATION2:00PARTIALMINIMIZELOADDATABASE

Whichcapabilityexistsonlyinjava.io.FileWriter？（）

Given：1.packagetest；2.3.classTarget{4.publicStringname="hello"；5.}Whatcandirectlyaccessandchangethevalueofthevariablename？（）

ExaminetheRMANcommand：SWITCHDATAFILE’/DISK3/user_data01.dbf’；Whichcommanddoyouneedtoissuebeforeyouissuetheabovecommand，sothatRMANfindsthefileintherestoredlocationof’DISK2/user_data01.dbf’？（）

TherowsinsidethreeOracletablessupportingacustomerorderentrysystemarefrequentlyaccessedtogetherbymeansofatablejoin.Becausedataisalwaysbeingaddedtothetables,youleavealotofextraspaceinsideeachblocktoaccommodategrowth.Whichofthefollowingtypesoftableswouldbeusefulforstoringthedatainthiscontext？（）

A. RMAN＞BACKUPDURATION2:00MINIMIZELOADDATABASE
B. RMAN＞BACKUPDURATION2:00PARTIALFILESPERSET1DATABASE
C. RMAN＞BACKUPDURATION2:00PARTIALMINIMIZETIMEDATABASE
D. RMAN＞BACKUPASCOPYDURATION2:00PARTIALMINIMIZELOADDATABASE