单项选择题

A.You can perform open database backups.B.You can perfo……

Your test database is running in NOARCHIVELOG mode. What are the implications of this？（）

A.You can perform open database backups.
B.You can perform closed database backups.
C.You cannot perform schema-level logical backups.
D.You can perform the backup of only the SYSTEM tablespace when the database is open.

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单项选择题TheSAVE_AMTcolumnintheACCOUNTStablecontainsthebalancedetailsofcustomersinabank.Aspartoftheyear-endtaxandinterestcalculationprocess，alltherowsinthetableneedtobeaccessed.Thebankauthoritieswanttotrackaccesstotherowscontainingbalanceamountsexceeding$200，000，andthensendanalertmessagetotheadministrator.Whichmethodwouldyousuggesttothebankforachievingthistask？（）

A.implementing value-based auditing by using triggers
B.implementing fine-grained auditing with audit condition and event handler
C.performing standard database auditing to audit object privileges by setting the AUDIT_TRAIL parameter to EXTENDED
D.performing standard database auditing to audit SQL statements with granularity level set to ACCESS

单项选择题YouareusingthebackupschedulerinEnterpriseManager（EM）toscheduleabackupofyourdatabase.Whichtypeofscriptdoesthebackupschedulergenerate？（）

A.SQL script
B.PL/SQL script
C.Operating System （OS） script
D.Enterprise Manager （EM） script
E.Recovery Manager （RMAN） script

单项选择题You suspect unauthorized data manipulation language （DML） operations on a particular table. You want to track users who are performing the transactions and the values used in the transactions. Also， you plan to transfer these values to another table for analysis. How would you achieve this？（）

A.by using triggers
B.by using external tables
C.by using anonymous PL/SQL blocks
D.by auditing all DML operations on the table

单项选择题Asaresultofperformanceanalysis，youcreatedanindexontheprod_namecolumnoftheprod_dettable，whichcontainsabouttenthousandrows.Later，youupdatedaproductnameinthetable.Howdoesthischangeaffecttheindex？（）

A.A leaf will be marked as invalid.
B.An update in a leaf row takes place.
C.The index will be updated automatically at commit.
D.A leaf row in the index will be deleted and inserted.
E.The index becomes invalid when you make any updates.

多项选择题WhichtwostatementsaboutFlashbackQueryaretrue？（）

A.It is generated by using the redo log files.
B.It helps in row-level recovery from user errors.
C.It can be performed to recover ALTER TABLE statements
D.It fails when undo data pertaining to the transaction is overwritten.
E.The database has to be opened with the resetlogs option after performing Flashback Query.