2024年计算机考试-Oracle认证笔试参考题库含答案

“人人文库”水印下载源文件后可一键去除，请放心下载！（图片大小可任意调节）2024年计算机考试-Oracle认证笔试参考题库含答案“人人文库”水印下载源文件后可一键去除，请放心下载！第1卷一.参考题库(共75题)1.The EMP_DEPT block in your EMPLOYEE form is based on a view in an Oracle8 database. The items in this block have the Update Allowed property set to Yes. Which database feature makes it possible to permanently modify the underlying view?（）A、REF cursor. B、Instead Of trigger. C、Stored procedure that returns object values. D、The underlying view cannot be modified because DML on a view is not supported.2.YoudiscoverthatyourRecycleBincontainstwotableswiththesamename,MY_TABLE.YoualsohaveatablenamedMY_TABLEinyourschema. Youexecutethefollowingstatement: FLASHBACKTABLEmy_tableTOBEFOREDROPRENAMETOmy_table2; Whatwillbetheresultofexecutingthisstatement?（）A、OneofthetablesisrecoveredfromtheRecycleBinusingaFirstInFirstOut(FIFO)approach.B、OneofthetablesisrecoveredfromtheRecycleBinusingaLastInFirstOut(LIFO)approach.C、BoththetablesarerecoveredfromtheRecycleBinwithonetablerenamedtoMY_TABLE2andtheothertoasystem-generatedname.D、NoneofthetablesarerecoveredfromtheRecycleBin,andthestatementreturnsanerror.3.Given： What is the result？（）A、2.1.0B、2.1.1C、3.2.1D、3.2.24.YouareusingthecontrolfiletomaintaininformationaboutthedatabasebackupsthatarebeingperformedbyRecoveryManager(RMAN).Identifytwoscenariosiswhichyoumusthavearecoverycatalog.（）A、TostorethebackupinformationofmultipledatabaseB、TorestricttheamountofspacethatisusedbythebackupsC、TomaintainabackupforacertaintimeissetbytheCONTROL_FILE_RECORD_KEEP_TIMEparameter.D、TolistthedatafilesthatwereinatargetdatabaseatagiventimebyusingtheAToptionofREPORTSCHEMAcommand.5.Whichoptionprovidesahierarchyofdatasecurityacrosslinesofbusiness?（）A、AlertsB、Multi-OrgC、FlexfieldsD、SharedentitiesE、BusinessIntelligence6.While creating a database using Database Configuration Assistant tool， you created a database default temporary tablespace. Which activity would cause the default temporary tablespace of the database to be used？（）A、the CREATE TABLE .. commandB、sorting of the SYSTEM tablespace’s dataC、sorting of data required by recursive SQL statementsD、the CREATE TABLE .. ORGANIZATION EXTERNAL .. commandE、sorting of data if the users have not been allocated temporary tablespace explicitlyF、sorting of data if the users have been allocated temporary tablespace explicitly7.WhichtwostatementsaretrueaboutencryptingRMANbackup?（）(Choosetwo.)A、ThetransparentencryptionofbackupsusestheencryptionwalletB、ThedatabaseusesthesameencryptionkeyforeveryencryptedbackupC、ThepasswordencryptionofbackupsonlyusesthepasswordwhilecreatingandrestoringbackupD、Iftransparentencryptionisconfigured,youcannotusetheSETENCRYPTIONBYPASSWORDcommandtomakepassword-protectedbackups.8.Given: Whatistheresult?（）A、r，t，t，B、r，e，o，C、Compilationfails.D、Anexceptionisthrownatruntime.9.Which command is used to begin a tablespace point-in-time recovery？（）  A、 Restore tablespaceB、 Recover tablespaceC、 Tablespace recoverD、 Recover to timeE、 recover datafile10.Whichthreestatementsaboutsubqueriesaretrue?（）A、Asinglerowsubquerycanretrieveonlyonecolumnandonerow.B、Asinglerowsubquerycanretrieveonlyonerowbutmanycolumns.C、Amultiplerowsubquerycanretrievemultiplerowsandmultiplecolumns.D、Amultiplerowsubquerycanbecomparedusingthe"；>；"；operator.E、AsinglerowsubquerycanusetheINoperator.F、Amultiplerowsubquerycanusethe"；="；operator.11.You are using Oracle Database 10g. The LOG_ARCHIVE_FORMAT parameter is set to  ’LOG%t_%s_%r.dbf’.  Why is %r used in the file name format？（） A、to uniquely identify the archived log files with the restore operationB、to uniquely identify the archived log files with the redo log group numberC、to uniquely identify the archived log files for each incarnation of the databaseD、to uniquely identify the archived log files with the number of recovery operations performed12.Your database in running in the ARCHIVELOG mode. You issue the following command to back up datafile 2 in your database.   RMAN> COPY DATAFILE 2 TO ’D:///ORACLE/ORA90/MYNEWDB/DA2.DBF’；   Which two statements are true regarding the backup created using this command？（）A、 The copy of the datafile created is stored in the RMAN repository.B、 The copy of the datafile created can be viewed using the LIST BACKUP command.C、 The copy of the datafile created using this COPY command can be placed only on the disk.D、 The copy of the datafile created is similar to the backup of the file created using the BACKUP command.E、 The copy of the datafile created can be used for recovering the database using the user-managed recovery method.13.Which two statements about the SQL Management Base （SMB） are true？（） A、 It contains only SQL profiles generated by SQL Tuning Advisor.B、 It stores plans generated by the optimizer using a stored outline.C、 It is part of the data dictionary and stored in the SYSAUX tablespace.D、 It is part of the data dictionary and stored in the SYSTEM tablespace.E、 It contains the statement log，the plan history，plan baselines，and SQL profiles.14.You need to import all definitions of objects belonging to the TS_EMPLOYEES tablespace by using the export file expdat.dmp. Which import statement is correct？（）A、imp hr/hr TABLES=（ts_employees） rows=yB、imp system/manager FROMUSER=hr file=expdat.dmpC、imp hr/hr TRANSPORT_TABLESPACE=y file=expdat.dmpD、imp system/manager TRANSPORT_TABLESPACE=y TABLESPACE=ts_employees15.Which is the correct WebLogic Server distribution version to download if you want to install WebLogic Server 12c to run in 64 bit mode on a 64 bit Linux X86?（）A、Linux x86 with 64 bit JVMB、ZIP distribution for LinuxC、Linux x86 with 32 bit JVMD、Generic distributionE、Network installer16.In your production database， you have observed that the database server performance degrades whenever there is a switch between the log groups. On further investigation， you find that the database is running in ARCHIVELOG mode and the archived log files are being written to the same disk that is used to store the redo log members.  Which two actions would you take to improve the performance of the database server？（）A、increase the size of the redo log bufferB、increase the number of redo log groupsC、increase the number of log writer processesD、increase the number of ARCn processesE、change the appropriate LOG_ARCHIVE_DEST_n parameter to place the archived log files in a separate location17.You want to create a template to be used as a standard for all company reports. What is the easiest way to do this?（）A、Open an existing template file, rename it and modify the template objects. B、Open the report wizard and create a new template. C、Open the layout model and copy the paste items from the default templates provided in report builder. D、Templates cannot be modified in release 2.18.YouhavethreetemporarytablespacegroupsnamedG1,G2,andG3inyourdatabase.Youarecreatinganewtemporarytablespaceasfollows: CREATETEMPORARYTABLESPACETEMP1TEMPFILE'/u1/data/temp1.dbf'SIZE10M TABLESPACEGROUP''; Whichstatementregardingtheabovecommandiscorrect?（）A、ItwillcreatethetablespaceTEMP1ingroupG1.B、ItwillcreatethetablespaceTEMP1ingroupG3.C、ItwillnotaddthetablespaceTEMP1toanygroup.D、ItwillcreatethetablespaceTEMP1inthedefaultgroup.19.AdatabaseinstanceisusinganAutomaticStorageManagement(ASM)instance,whichhasadiskgroup,DGROUP1,createdasfollows: SQL>CREATEDISKGROUPdgroup1NORMALREDUNDANCY FAILGROUPcontroller1DISK'/devices/diska1','/devices/diska2' FAILGROUPcontroller2DISK'/devices/diskb1','/devices/diskb2'; WhathappenswhenthewholeCONTROLLER1Failuregroupisdamaged?（）A、Thetransactionsthatusethediskgroupwillhalt.B、ThemirroringofallocationunitsoccurswithintheCONTROLLER2failuregroup.C、ThedataintheCONTROLLER1failuregroupisshiftedtotheCONTROLLER2failuregroupandimplicitrebalancingistriggered.D、TheASMdoesnotmirroranydataandnewlyallocatedprimaryallocationunits(AU)arestoredintheCONTROLLER2failuregroup.20.在Oracle中，在执行SQL语句时，你不小心使用Update命令将所有的ID值设置成了11111，那么使用（）命令可以取消这一操作。A、EXITB、COMMITC、ROLLBACKD、UNDO21.WhichtierinOracleE-BusinessSuiteisresponsibleforstoringapplicationdata?（）A、databasetierB、applicationtierC、client(desktop)tierD、bothdatabasetierandapplicationtier22.Given： Which change can you make to Target without affecting Client？（）A、Line 4 of class Target can be changed to return i++；B、Line 2 of class Target can be changed to private int i = 1；C、Line 3 of class Target can be changed to private int addOne（）{D、Line 2 of class Target can be changed to private Integer i = 0；23.Given： Which command-line invocations will compile？（）A、javac Mule.javaB、javac -source 1.3 Mule.javaC、javac -source 1.4 Mule.javaD、javac -source 1.5 Mule.java24.When performing an incomplete recovery of the whole database， what must be true about the data files that are restored？（）A、AB、BC、CD、D25.Assuming that the serializeBanana（） and the deserializeBanana（） methods will correctly use Javaserialization and given： What is the result？（）A、restore 400B、restore 403C、restore 453D、Compilation fails.E、An exception is thrown at runtime.26.You are creating a job class. You want access to the detailed information for all the runs of each job in the class and every operation performed on every job in the class. Which setting will you use for the LOGGING_LEVEL parameter？（）A、 LOGGING_OFFB、 LOGGING_RUNSC、 LOGGING_FULLD、 LOGGING_NULL27.Matthew has recently joined NetFx Corporation as a junior-level Database Administrator （DBA）. He is asked by his supervisor to verify the database for data block corruptions. He uses the DBVERIFY utility and finds that two data blocks are corrupted in the database.   What should Matthew use to identify the corrupted blocks as well as datafiles containing these blocks？（） A、 datafileB、 alert logC、 dynamic viewsD、 control file script28.Which statement is true regarding RMAN components？（）A、Each target database requires its own recover catalog. B、RMAN scripts can be stored in the recovery catalog or the target control file. C、A channel is a stream of data to a device type and corresponds to one server session. D、The RMAN executable interprets sever session commands and establishes connections to the targetdatabase.29.Exhibit： View the Exhibit to see the information on existing tablespaces of the PROD database.  You observe that a large volume of INSERTs and DELETEs are happening on the TRANS table residing in the USERS tablespace， and you suspect that the TRANS table is fragmented. Which advisory component would you refer to， in order to find the information about table fragmentation？（）A、Memory AdvisorB、Segment AdvisorC、SQL Tuning and Access AdvisorsD、Automatic Workload Repository （AWR）E、Automatic Database Diagnostic Monitor （ADDM）30.ThePRODUCTStablehasthesecolumns: PRODUCT_IDNUMBER(4) PRODUCT_NAMEVARCHAR2(45) PRICENUMBER(8,2) EvaluatethisSQLstatement: SELECT* FROMPRODUCTS ORDERBYprice,product_name; WhatistrueabouttheSQLstatement?（）A、Theresultsarenotsorted.B、Theresultsaresortednumerically.C、Theresultsaresortedalphabetically.D、Theresultsaresortednumericallyandthenalphabetically.31.Given: Whichmethodwillcompletethisclass?（）A、publicintcompareTo(Objecto){/*morecodehere*/}B、publicintcompareTo(Scoreother){/*morecodehere*/}C、publicintcompare(Scores1,Scores2){/*morecodehere*/}D、publicintcompare(Objecto1,Objecto2){/*morecodehere*/}32.Ateamofprogrammersisinvolvedinreviewingaproposeddesignforanewutilityclass.Aftersomediscussion,theyrealizethatthecurrentdesignallowsotherclassestoaccessmethodsintheutilityclassthatshouldbeaccessibleonlytomethodswithintheutilityclassitself. Whatdesignissuehastheteamdiscovered?（）A、TightcouplingB、LowcohesionC、HighcohesionD、LoosecouplingE、WeakencapsulationF、Strongencapsulation33.WhichstatementmostaccuratelydescribestheimplementationofaSQLAccessAdvisorrecommendation?（）A、SQLAccessAdvisorrecommendationsareautomaticallyimplemented.B、IndividualSQLAccessAdvisorrecommendationscanbescheduledforimplementation.C、AllSQLAccessAdvisorrecommendationsforaspecifictaskmustbeimplementedatthesametime.D、SQLAccessAdvisorrecommendationsareautomaticallyscheduledforimplementationduringthemaintenancewindow.E、Noneoftheabove.34.在Oracl中，哪种表分区维护操作可以将非分区表转换为分区表的分区（）。A、添加分区B、结合分区C、交换表分区D、合并分区35.Whichtwostatementsaboutsequencesaretrue?（）A、YouuseaNEXTVALpseudocolumntolookatthenextpossiblevaluethatwouldbegeneratedfromasequence,withoutactuallyretrievingthevalue.B、YouuseaCURRVALpseudocolumntolookatthecurrentvaluejustgeneratedfromasequence,withoutaffectingthefurthervaluestobegeneratedfromthesequence.C、YouuseaNEXTVALpseudocolumntoobtainthenextpossiblevaluefromasequencebyactuallyretrievingthevaluefromthesequence.D、YouuseaCURRVALpseudocolumntogenerateavaluefromasequencethatwouldbeusedforaspecifieddatabasecolumn.E、Ifasequencestartingfromavalue100andincrementedby1isusedbymorethenoneapplication,thenalloftheseapplicationscouldhaveavalueof105assignedtotheircolumnwhosevalueisbeinggeneratedbythesequence.F、YouuseREUSEclausewhencreatingasequencetorestartthesequenceonceitgeneratesthemaximumvaluedefinedforthesequence.36.Which two initialization parameters would you set to enable Automatic Shared MemoryManagement？（）A、 set SHARED_POOL_SIZE to zeroB、 set STATISTICS_LEVEL to BASICC、 set SGA_TARGET to a non-zero valueD、 set DB_CACHE_SIZE to a non-zero valueE、 set STATISTICS_LEVEL to TYPICAL or ALL37.You plan to collect the Automatic Workload Repository （AWR） data every Monday morning for a month. You want Oracle Database to automatically create a baseline every Monday and remove the old baseline.  What is the correct action to achieve this？（）  A、 Create and populate a SQL Tuning Set from the AWR on every Monday.B、 Change the RETENTION setting for the AWR snapshots to 7 days on Monday.C、 Create a repeating baseline template.D、 Insert a finding directive for future ADDM tasks.38.Which statement is true about a whole consistent database backup on a database running in ARCHIVELOG mode（）A、The backup will consist of used data blocks only.B、The database must be shut down to accomplish the backup.C、The backup can be accomplished without shutting down the database.D、The backup will contain all database files that have never been backed up.39.假设需要更改表名“CUSTOMER”为“CUSTOMER_CHANGE”，可以使用（）语句。A、ALTERTABLECUSTOMERRENAMECUSTOMER_CHANGEB、ALTERTABLECUSTOMERRENAMETOCUSTOMER_CHANGEC、RENAMETABLECUSTOMERTOCUSTOMER_CHANGED、RENAMETABLECUSTOMERCUSTOMER_CHANGE40.Your database is in the NOARCHIVELOG mode. Since last night’s offline backup， the logs in group 1 have been written to twice. This morning， the SYSTEM data file has become corrupted. Up to what point can it be recovered？（）A、until the last commitB、cannot be recoveredC、until the last offline backupD、until the beginning of the last transaction41.You work as a database administrator for Certkiller .com. In your database server， the parameter PLSQL_OPTIMIZE_LEVEL has been set to 2. What would this setting achieve？（）A、It degrades the run time and compiler performance.B、It provides better run time and compiler performance.C、It provides better optimization of the statement during parse time.D、It forces the rule based optimizer to be used for statement optimization.E、It provides better run time performance but slightly degraded compiler performance. F、It provides better run time performance but slightly degraded run time performance.42.ClicktheExhibitbutton.Whichthreecodefragments,addedindividuallyatline29,producetheoutput100?（） A、n=100;B、i.setX(100);C、o.getY().setX(100);D、i=newInner();i.setX(100);E、o.setY(i);i=newInner();i.setX(100);F、i=newInner();i.setX(100);o.setY(i);43.You work as a database administrator for Certkiller .com. While granting a role，SELECT_CATALOG_ROLE， to a user， Certkiller， using Oracle Enterprise Manager 10g Database Control， you have cleared the DEFAULT check box. What will be the result？（）A、The user cannot use the role at all.B、The role would not be granted to the user.C、The user needs to enable the role explicitly.D、The user can start using the role immediately.E、The user would have the admin option for the role.44.You work as a database administrator for Certkiller .com. You are using Recovery Manager （RMAN） for backup and recovery of your database. You executed the delete command in RMAN to delete a backup of atablespace. Which statement is true in this scenario？（）A、AB、BC、CD、DE、E45.Adatamanipulationlanguagestatement（）.A、completesatransactiononatableB、modifiesthestructureanddatainatableC、modifiesthedatabutnotthestructureofatableD、modifiesthestructurebutnotthedataofatable46.Which statement is true regarding Oracle Shared Server architecture？（）A、A dispatcher can support multiple client connects concurrently while a shared server process can be dedicated to only one dispatcher. B、Under the Oracle Shared Server architecture, client-user processes connect to shared user processes.C、Each dispatcher has its own request queue, which is monitored every three seconds by the dispatcher. D、Oracle Shared Server required Oracle Net Service even if the client and shared server processes reside on the same machine.47.Which of the following file should be configured for dynamic service registration？（）A、LISTENER.ORAB、SQLNET.ORAC、INIT.ORAD、TNSNAMES.ORA48.What is the result of increasing the value of the parameter ASM_POWER_LIMIT during a rebalance operation？（）  A、 The ASM rebalance operation will likely consume fewer resources and complete in a shorter amount of time.B、 The ASM rebalance operation will consume fewer resources and complete in a longer amount of time.C、 The ASM rebalance operation will be parallelized and should complete in a shorter amount of time.D、 There is no ASM_POWER_LIMIT setting used in ASM.E、 None of the above.49.Given： What is the result？（）A、0，0，0B、150，60，0C、Compilation fails.D、150，150，15050.Given： What is the result？（）A、2 -1B、2 -4C、2 -5D、3 -1E、3 -451.What is the implication of setting the initialization parameter FAST_START_MTTR_TARGET to 0 in your database？（）A、MTTR Advisor would be disabled.B、Redo Log Advisor would be disabled.C、Automatic tuning of checkpoint would be disabled.D、Checkpoint information would not be written to the alert log file.52.This is a special WebLogic Server instance included by the WebLogic Server Domains.  It represents a central point from which you configure and manage all resource domain. （）A、 Managed ServerB、 Web ServerC、 Administration ServerD、 Node Server53.Which commands are used for RMAN database recovery？（）A、 restoreB、 repairC、 copyD、 recoverE、 replace54.You are managing an Oracle Database 11g database with ASM storage. The ASM disk group has the COMPATIBLE.ASM attribute set to 11.1.  Which statements are true regarding extent management and allocation units in the ASM disk group？（）A、 The au_size disk group attribute determines the size of allocation units in the disk group. B、 The allocation unit size may vary but the extent size is fixed.C、 The allocation unit size and extent size are fixed for all the disks in a disk group and cannot be changed.D、 Extent management is completely automated.55.User SCOTT executes the following command on the EMP table but has not issued COMMIT， ROLLBACK， orany data definition language （DDL） command： SQL> SELECT ename FROM emp WHERE job=’CLERK’ FOR UPDATE OF empno； SCOTT has opened another session to work with the database instance.  Which three operations would waitwhen issued in SCOTT’s second session（）A、LOCK TABLE emp IN SHARE MODE；B、LOCK TABLE emp IN EXCLUSIVE MODE；C、UPDATE emp SET sal=sal*1.2 WHERE job=ANAGER？UPDATE emp SET sal=sal*1.2 WHERE job=？ANAGER？D、INSERT INTO emp（empno，ename） VALUES （1289，’Harry’）；E、SELECT ename FROM emp WHERE job=’CLERK’ FOR UPDATE OF empno56.You are the Database Administrator （DBA） of your company. You execute the following statement on an Oracle 10g instance：   SQL> ALTER SYSTEM SWITCH LOGFILE；   Which two tasks are performed when the statement is executed？ （）A、 The DBWn process writes to the datafile.B、 Changes in the background process are recorded.C、 The log file is updated with the current SCN number.D、 The System Change Number （SCN） is recorded in the control file.E、 The changes to the listener configuration in the listener.ora file are recorded.57.Because of a power outage， instance failure has occurred. From what point in the redo log does recovery begin and where does it end？ （）A、current redo log and inactive redo logB、checkpoint position to end of redo logC、beginning of redo log to end of redo logD、all redo logs before the point of last commitE、beginning of redo log to checkpoint position58.Given： What is the result？（）A、Mr. John DoeB、An exception is thrown at runtime.C、Compilation fails because of an error in line 12.D、Compilation fails because of an error in line 15.E、Compilation fails because of an error in line 20.59.When manually configuring the SGA，which of the following parameter changes requires an instance restart to take effect？（）   "First Test， First Pass" -  97 Oracle 1Z0-053 ExamA、 DB_CACHE_SIZEB、 SHARED_POOL_SIZEC、 LARGE_POOL_SIZED、 JAVA_POOL_SIZEE、 SGA_MAX_SIZEF、 SORT_AREA_SIZE60.Inwhichtwocaseswouldyouuseanouterjoin?（）A、ThetablesbeingjoinedhaveNOTNULLcolumns.B、Thetablesbeingjoinedhaveonlymatcheddata.C、ThecolumnsbeingjoinedhaveNULLvalues.D、Thetablesbeingjoinedhaveonlyunmatcheddata.E、Thetablesbeingjoinedhavebothmatchedandunmatcheddata.F、Onlywhenthetableshaveaprimarykey-foreignkeyrelationship.61.OnyourOracle12cdatabase,youIssuethefollowingcommandstocreateindexes SQL>CREATEINDEXoe.ord_customer_ix1ONoe.orders(customers_id,sales_rep_id)INVISIBLE; SQL>CREATEBITMAPINDEXoe.ord_customer_ix2ONoe.orders(customers_id,sales_rep_id); Whichtwostatementarecorrect?（）A、Boththeindexesarecreated;however,onlytheORD_COSTOMERindexisvisible.B、TheoptimizerevaluatesindexaccessfromboththeIndexesbeforedecidingonwhichindextouseforqueryexecutionplan.C、OnlytheORD_CUSTOMER_IX1indexiscreated.D、OnlytheORD_CUSTOMER_IX2indexiscreated.E、Boththeindexesareupdatedwhenanewrowisinserted,updated,ordeletedIntheorderstable.62.IdentifythepersistentconfigurationsettingforthetargetdatabasethatcanbesetforthebackupbyusingRMAN.（）A、BackupretentionpolicyB、DefaultbackupdevicetypeC、DefaultdestinationsforbackupsD、MultiplebackupdevicetypesforsinglebackupE、Defaultsectionsizeforbackups63.Identifythreevalidmethodsofopening,pluggabledatabases(PDBs).（）A、ALTERPLUGGABLEDATABASEOPENALLISSUEDfromtherootB、ALTERPLUGGABLEDATABASEOPENALLISSUEDfromapdbC、ALTERPLUGGABLEDATABASEPDBOPENissuedfromtheseedD、ALTERDATABASEPDBOPENissuedfromtherootE、ALTERDATABASEOPENissuedfromthatpdb

F、ALTERPLUGGABLEDATABASEPDBOPENissuedfromanotherpdbG、ALTERPLUGGABLEDATABASEOPENissuedfromthatpdb64.显示本月月末的日期（）A、selectlast_date(sysdate)fromdual;B、selectfinally_day(sysdate)fromdual;C、selectlast_day(sysdate)fromdual;D、selecttail_day(sysdate)fromdual;65.Acompanyhasabusinessapplicationthatprovidesitsuserswithmanydifferentreports: receivablesreports,payablesreports,revenueprojects,andsoon.Thecompanyhasjustpurchasedsomenew,state-of-the-art,wirelessprinters,andaprogrammerhasbeenassignedthetaskofenhancingallofthereportstousenotonlythecompany'soldprinters,butthenewwirelessprintersaswell.Whentheprogrammerstartslookingintotheapplication,theprogrammerdiscoversthatbecauseofthedesignoftheapplication,itisnecessarytomakechangestoeachreporttosupportthenewprinters. Whichtwodesignconceptsmostlikelyexplainthissituation?（）A、InheritanceB、LowcohesionC、TightcouplingD、HighcohesionE、LoosecouplingF、Objectimmutability66.A redo log file is corrupted while the database is open； as a consequence， databa