问题：多选题Which two files in the database can be configured for automatic backups by using the autobackupfeature in Recovery Manager （RMAN）（）Adata filesBcontrol filesCparameter fileDonline redo log filesEserver parameter file
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问题：多选题Which two statements correctly describe the relation between a data file and the logical databasestructures（）AAn extent cannot spread across data files.BA segment cannot spread across data files.CA data file can belong to only one tablespace.DA data file can have only one segment created in it.EA data block can spread across multiple data files as it can consist of multiple operating system （OS） blocks.
问题：多选题Which two statements are true regarding a tablespace（）AIt can span multiple databases.BIt can consist of multiple data files.CIt can contain blocks of different sizes.DIt can contain segments of different sizes.EIt can contain a part of a nonpartitioned segment.
问题：多选题Which two statements about the background process of thedatabase writerare true（）AIt is possible to have multiple database writers in an Oracle instance.BIt writes dirty buffers， if any， to data files whenever a checkpoint occurs.CIt writes dirty buffers， if any， to data files whenever a transaction commits.DIt writes dirty buffers， if any， to data files before the log writer （LGWR） writes.
问题：单选题Your database is configured in shared server mode. However， your senior DBA asks you to modifythe value of the PRIVATE_SGA limit in the profile of the users. What could be the reason for this（）A to limit the User Global Area （UGA） memory allocated to a session from the SGAB to limit the amount of memory to be used for the dispatcher queue of a session in SGAC to limit the amount of memory to be used for the request pool in System Global Area （SGA）D to control the amount of memory allocated in SGA for the local variables for each shared server process
问题：单选题Which task would you perform before you run Oracle Universal Installer （OUI） in silent or suppressedmode for an installation（）A Run the root.sh script.B Create the oraInst.loc file.C Create the tnsnames.ora file.D Run the oraintRoot.sh script.
问题：多选题The user HR receives the following error while inserting data into the TTK table：ERROR at line 1： ORA-01653： unable to extend table HR.TTK by 128 in tablespace SMD Upon investigation， you find that SMDis a small file tablespace. Which three action would allow the user to insert data（）AAdd a data file to the SMD tablespace.BAdd a data file to the temporary tablespace associated with the user HR.CResize the data file associated with the SMD tablespace to make it larger.DAlter the data file associated with the SMD tablespace to grow automatically.EChange the segment space management for the SMD tablespace to automatic
问题：多选题Which operations require undo data（）ACommitting a transactionBFlashing back a transactionCRecovering a failed transactionDRunning a read-consistent queryEChanging a tablespace status from READ ONLY to READ WRITE
问题：单选题Which statement is true about the Manageability Monitor （MMON） background proces（）A It transfers statistics from memory to disk at regular intervals.B It coordinates the rebalance activity for disk groups when ASM is used.C It communicates with the Automatic Storage Management （ASM） instance on behalf of the databaseinstance.D It performs dynamic memory management when Automatic Shared Memory Management is enabledfor the database instance.
问题：单选题The HR user creates a stand-alone procedure as follows and grants the EXECUTE privilege on theprocedure to many database users： CREATE OR REPLACE PROCEDURE create_dept （ v_deptno NUMBER， v_dname VARCHAR2， v_mgr NUMBER， v_loc NUMBER） BEGIN INSERT INTO hr.departments VALUES （v_deptno， v_dname， v_mgr， v_loc）； END； The users having permission to execute the procedure are able to insert records into the DEPARTMENTStable even though they do not have the INSERT privilege on the table. You want only those users whohave privileges on the DEPARTMENTS table to be able to execute the procedure successfully. What would you suggest to the PL/SQL developers to achieve this（）A Create the procedure with definer’s right.B Create the procedure with invoker’s right.C Grant the EXECUTE privilege with GRANT OPTION on the procedure to selected users.D Create the procedure as part of a PL/SQL package and grant the EXECUTE privilege on the package to selected users
问题：多选题Which two statements are true regarding Oracle Data Pump（）AEXPDP and IMPDP are the client components of Oracle Data Pump.BDBMS_DATAPUMP PL/SQL packages can be used independently of the Data Pump clients.COracle Data Pump export and import operations can be performed only by users with the SYSDBA privilege.DOracle Data Pump imports can be done from the export files generated in the export utility of previous versions.EEXPDP and IMPDP use the procedures provided by DBMS_METADATA to execute export and import commands.
问题：多选题Which statements regarding the server parameter file （SPFILE） are true（）AAn SPFILE is a binary file.BAn SPFILE cannot reside on a client.CAn SPFILE cannot contain static parameters.DAn SPFILE can store changes persistently across instance restarts.EAn SPFILE can be read by the database server， but it is not written to by the server.FAn SPFILE must be created manually， before creating a database， even if you use the DatabaseConfiguration Assistant （DBCA） to create the database
问题：多选题You plan to move data from a flat file to a table in your database. You decide to use SQL*Loader direct pathload method to perform this task. The table in which you plan to load data is an important table having variousintegrity constraints defined on it. Which constraints will remain enabled by default during this operation（）ACHECKBUNIQUECNOT NULLDPRIMARY KEYEFOREIGN KEY
问题：单选题Note the following structures in your database server： 1.Extents 2.OS Blocks 3.Tablespace 4.Segments 5.Oracle Data Block Which option has the correct arrangement of these structures from the smallest to the largest（）A 2，5，1，4，3B 1，2，3，4，5C 5，2，1，3，4D 2，1，5，4，3
问题：单选题All the database users are presently connected to the database instance and working. The HR userhas opened three database sessions and executed the following command in one of his sessions： SQL> UPDATE persons SET ccode=’U031’ WHERE ccode=’U029’； 123 rows updated. SQL> DELETE FROM persons WHERE exp=’Y’； 3 rows deleted. The SYS user opens a new session after HR executed the above commands. Which sessions can seethe effect of the UPDATE and DELETE commands （）A all sessions of the HR user onlyB all sessions of the HR user and the SYS userC the session of the HR user that executed the commandsD all the sessions for which the database users have access privilege to the PERSONS table
问题：单选题The job to gather optimizer statistics for objects runs as part of the automatic maintenance window in yourdatabase instance. At a certain point of time， the maintenance window closes before the statistics are gatheredfor all objects. Which statement is true in this scenario（）A The statistics collection continues until all objects are processed.B The job is terminated and the statistics collected are restored to a time before the job started.C This produces an error and the statistics collected are locked until the next time that the maintenancewindow is opened.D The job is terminated and the statistics for the remaining objects are collected the next time that themaintenance window is opened
问题：单选题You are in the middle of a transaction updating a very important table. The machine on which a database wasrunning reboots because of power outage. This caused a database instance failure. Which statement is true inthis situation（）A The online redo log files and archived redo log files are required to accomplish the recovery.B The uncommitted transaction will be committed at the next startup of the database instance.C The uncommitted transaction is rolled back automatically at the next opening of the database.D The DBA has to perform the recovery on the database to recover the uncommitted transaction
问题：单选题You have executed this command to change the size of the database buffer cache： SQL> ALTER SYSTEM SET DB_CACHE_SIZE=2516582； System altered. To verify the change in size， you executed this command：SQL> SHOW PARAMETER DB_CACHE_SIZENAME TYPE VALUE ------------------- ----------- ------------------ db_cache_size big integer 4194304 Why is the value set to 4194304 and not to 2516582（）A Because 4194304 is the granule sizeB Because 4194304 is the standard block sizeC Because 4194304 is the largest nonstandard block size defined in the databaseD Because 4194304 is the total size of data already available in the database buffer cache
问题：单选题In your database instance， the STATISTICS_LEVEL initialization parameter is set to BASIC. What isthe impact of this setting（）A Optimizer statistics are collected automatically.B Only timed operating system （OS） statistics and plan execution statistics are collected.C The snapshots for the Automatic Workload Repository （AWR） are not generated automatically.D Snapshots cannot be collected manually by using the DBMS_WORKLOAD_REPOSITORY package.E The Oracle server dynamically generates the necessary statistics on tables as part of query optimization.
问题：多选题You perform differential incremental level 1 backups of your database on each working day and level 0 backupon Sundays， to tape. Which two statements are true about differential incremental backups（）AThe backup performed on Sundays contains all the blocks that have ever been used in the database.BThe backup performed on Sundays contains all the blocks that have changed since the last level 1 backup.CThe backup performed on each working day contains all the blocks that have changed since the last level 0 backup.DThe backup performed on Monday contains all the blocks that have changed since the level 0 backup， and every other working day contains all the blocks that have changed since the level 1 backup
