You wish to enable an audit policy for all database users, e-最需题库

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1Examine the following command:CREATE TABLE (prod_id number(4),Prod_name varchar2 (20),Category_id number(30),Quantity_on_hand number (3) INVISIBLE);Which three statements are true about using an invisible column in the PRODUCTS table、
A.The %ROWTYPE attribute declarations in PL/SQL to access a row will not display the invisible column in the output.
B.The DESCRIBE commands in SQL *Plus will not display the invisible column in the output.
C.Referential integrity constraint cannot be set on the invisible column.
D.The invisible column cannot be made visible and can only be marked as unused.
E.A primary key constraint can be added on the invisible column.
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2Which three statements are true concerning unplugging a pluggable database (PDB)、
A.The PDB must be open in read only mode.
B.The PDB must be dosed.
C.The unplugged PDB becomes a non-CDB.
D.C.The unplugged PDB becomes a non-CDB.D.The unplugged PDB can be plugged into the same multitenant container database (CDB)
E.B.The PDB must be dosed.C.The unplugged PDB becomes a non-CDB.D.The unplugged PDB can be plugged into the same multitenant container database (CDB)E.The unplugged PDB can be plugged into another CDB.
F.The PDB data files are automatically removed from disk.
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3Examine the current value for the following parameters in your database instance:SGA_MAX_SIZE = 1024MSGA_TARGET = 700MDB_8K_CACHE_SIZE = 124MLOG_BUFFER = 200MYou issue the following command to increase the value of DB_8K_CACHE_SIZE:SQL> ALTER SYSTEM SET DB_8K_CACHE_SIZE=140M;Which statement is true、
A.It fails because the DB_8K_CACHE_SIZE parameter cannot be changed dynamically.
B.It succeeds only if memory is available from the autotuned components if SGA.
C.It fails because an increase in DB_8K_CACHE_SIZE cannot be accommodated within SGA_TARGET.
D.It fails because an increase in DB_8K_CACHE_SIZE cannot be accommodated within SGA_MAX_SIZ
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4Which two are true concerning a multitenant container database with three pluggable database、
A.All administration tasks must be done to a specific pluggable database.
B.The pluggable databases increase patching time.
C.The pluggable databases reduce administration effort.
D.The pluggable databases are patched together.
E.Pluggable databases are only used for database consolidation.
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5Examine this command:SQL > exec DBMS_STATS.SET_TABLE_PREFS (‘SH’, ‘CUSTOMERS’, ‘PUBLISH’, ‘false’);Which three statements are true about the effect of this command、
A.Statistics collection is not done for the CUSTOMERS table when schema stats are gathered.
B.Statistics collection is not done for the CUSTOMERS table when database stats are gathered.
C.Any existing statistics for the CUSTOMERS table are still available to the optimizer at parse time.
D.B.Statistics collection is not done for the CUSTOMERS table when database stats are gathered.C.Any existing statistics for the CUSTOMERS table are still available to the optimizer at parse tim
E.D.Statistics gathered on the CUSTOMERS table when schema stats are gathered are stored as pendingE.Statistics gathered on the CUSTOMERS table when database stats are gathered are stored as pending statistics.
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6On your Oracle 12c database, you invoked SQL *Loader to load data into the EMPLOYEES table in the HR schema by issuing the following command:$> sqlldr hr/hr@pdb table=employeesWhich two statements are true regarding the command、
A.It succeeds with default settings if the EMPLOYEES table belonging to HR is already defined in the database.
B.It fails because no SQL *Loader data file location is specified.
C.It fails if the HR user does not have the CREATE ANY DIRECTORY privilege.
D.C.It fails if the HR user does not have the CREATE ANY DIRECTORY privileg
E.D.It fails because no SQL *Loader control file location is specified.
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7 You must track all transactions that modify certain tables in the sales schema for at least three years.Automatic undo management is enabled for the database with a retention of one day.Which two must you do to track the transactions、
A.Enable supplemental logging for the database.
B.Specify undo retention guarantee for the database.
C.Create a Flashback Data Archive in the tablespace where the tables are store
D.D.Create a Flashback Data Archive in any suitable tablespac
E.E.Enable Flashback Data Archiving for the tables that require tracking.
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8Your are the DBA supporting an Oracle 11g Release 2 database and wish to move a table containing several DATE, CHAR, VARCHAR2, and NUMBER data types, and the table’s indexes, to another tablespace.The table does not have a primary key and is used by an OLTP application.Which technique will move the table and indexes while maintaining the highest level of availability to the application、
A.Oracle Data Pump.
B.An ALTER TABLE MOVE to move the table and ALTER INDEX REBUILD to move theindexes.
C.An ALTER TABLE MOVE to move the table and ALTER INDEX REBUILD ONLINE to move the indexes.
D.Online Table Redefinition.
E.Edition-Based Table Redefinition.
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9What are two benefits of installing Grid Infrastructure software for a stand-alone server before installing and creating an Oracle database、
A.Effectively implements role separation
B.Enables you to take advantage of Oracle Managed Files.
C.Automatically registers the database with Oracle Restart.
D.Helps you to easily upgrade the database from a prior releas
E.E.Enables the Installation of Grid Infrastructure files on block or raw devices.
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10Identify two correct statements about multitenant architectures.
A.Multitenant architecture can be deployed only in a Real Application Clusters (RAC) configuration.
B.Multiple pluggable databases (PDBs) share certain multitenant container database (CDB) resources.
C.Multiple CDBs share certain PDB resources.
D.Multiple non-RAC CDB instances can mount the same PDB as long as they are on the same server.
E.Patches are always applied at the CDB level.
F.A PDB can have a private undo tablespace.
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