问题：单选题You want to configure and schedule offline database backups to run automatically. Which tool or utility wouldyou use to achieve this（）A The XML scriptB The PL/SQL scriptC The DBMS_SCHEDULER packageD Enterprise Manager to schedule the backup
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问题：单选题Automatic Shared Memory Management is disabled for your database instance. You realize that there arecases of SQL statements performing poorly because of repeated parsing activity， resulting in degradation ofperformance. What would be your next step to improve performance（）A Run the SQL Access AdvisorB Run the Memory Advisor for the sga.C Run the Memory Advisor for the pga.D Run the Memory Advisor for the shared pool.E Run the Memory Advisor for the buffer cache
问题：单选题Your test database is configured to run in NOARCHIVELOG mode. One of the data files in the USERStablespace is lost due to a media failure. You notice that all the online redo logs have been overwritten since the last backup. What would you do to recover the data file（）A Take the USERS tablespace offline and re-create the lost data file.B Shut down the instance， restore the data file from the last consistent backup， and restart the databaseinstance.C Shut down the instance， restore all the database files from the last consistent backup， and restart thedatabase instance.D Take the USERS tablespace offline， restore all the data files of the USERS tablespace from the lastconsistent backup， and make the tablespace online.
问题：单选题You are managing an Oracle Database 11g database with this backup strategy： - Every Sunday night， level 0 backup is performed. - On Monday night and subsequent days， level 1 incremental backup is performed. The backups are not cumulative incremental. Which statement about Monday’s backup is true（）A The backup contains all the used blocks.B The backup contains all the used and unused blocks.C The backup contains blocks that have changed since the last level 0 backup.D The backup contains blocks that have changed since the last level 1 backup taken last week.
问题：单选题Which statement is true about loading data using the conventional path of SQL*Loader（）A Redo is not generated while performing conventional path loads.B Only PRIMARY KEY， UNIQUE KEY， and NOT NULL constraints are checked.C No exclusive locks are acquired when the conventional path loads are performed.D Instead of performing transactions， SQL*Loader directly writes data blocks to the data files.E INSERT triggers are disabled before the conventional path load and reenabled at the end of the load.
问题：多选题You execute the following command to change the status of the SALES tablespace：SQL> ALTER TABLESPACE sales OFFLINE； Which statements describe the effect of the command（）AThe tablespace would require recovery to go back online.BA checkpoint is taken on all data files that are associated with the SALES tablespace.CThe sessions that subsequently try to access the objects in the SALES tablespace receive an errorDThe new status of the SALES tablespace is recorded in the control file when the database instance isclosed
问题：单选题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.
问题：多选题You are working on a database that must be functioning 24 hours a day， 7 days a week. The databaseis configured in ARCHIVELOG mode. Which two options do you have for performing user-managed backups（）AYou can perform consistent backups only.BYou can perform a complete database backup without shutting down the database instance.CYou can back up data files only when all data files have the same SCN recorded in the control file.DYou can back up only those data files whose headers are frozen by using ALTER TABLESPACE BEGINBACKUP or ALTER DATABASE BEGIN BACKUP commands.
问题：单选题You want to import schema objects of the HR user using Oracle Data Pump from the development database，DEVDB， to the production database， PRODDB. A database link devdb.us.oracle.com is created betweenPRODDB and DEVDB. You execute the following command on the PRODDB database server：$ impdp system/manager directory = DB_DATAdumpfile = schemas.datschemas = hr flashback_time = "TO_TIMESTAMP（’25-08-2007 14：35：00’， ’DD-MM-YYYY HH24：MI：SS’）"The command fails displaying the following error：ORA-39001： invalid argument valueORA-39000： bad dump file specification ORA-31640： unable to open dump file "/home/oracle/schema/schemas.dat" for read ORA-27037： unable toobtain file status What would you do to overcome the error（）A Add the user， SYSTEM， to the schemas option.B Add the network_link = devdb.us.oracle.com option.C Change the dumpfile option to schema.dat@devdb.us.oracle.com.D Replace the schemas option with the network_link = devdb.us.oracle.comE Replace the dumpfile option with the network_link = devdb.us.oracle.com
问题：单选题You want to create a role to meet these requirements： 1：The role is to be protected from unauthorized usage. 2：The password of the role is not to be embedded in the application source code or stored in a table. Which method would you use to restrict enabling of such roles（）A Create the role with global authentication.B Create the role with external authentication.C Create the role as a secure application role.D Create the role as a password-protected role.E Create a role and use Fine-Grained Access Control （FGAC） to secure the role.
问题：单选题The TRANS_SUMMARY table contains product-wise transaction details that get updated with every transactionin the system. Each row has cumulative transaction details of a single product and every product is identified bya product code， which is the primary key.As part of the archival process， the company wants to transfer therows in the TRANS_SUMMARY table to the TRANS_SUMMARY_DUP table at the end of every quarter of theyear. Along with existing products， the company deals with many new products during every quarter. Whichmethod is best suited for this quarterly data transfer（）A Using the MERGE commandB Using the SQL*Loader utilityC Using the correlated UPDATE commandD Using the INSERT command to perform bulk operation
问题：多选题A database user SMITH tries to query the V$SESSION view and fails to access it as follows： SQL> connect smith/smith Connected. SQL> SELECT * FROM v$session； SELECT * FROM v$session * ERROR at line 1： ORA-00942： table or view does not exist Which are the two possible solutions to enable SMITH to query the data in V$SESSION（）Agranting SELECT privilege to SMITH on V$SESSIONBgranting SELECT privilege to SMITH on V_$SESSIONCasking the user SMITH to run the catalog.sql scriptDgranting SELECT privilege to SMITH on V$FIXED_TABLESEsetting the O7_DICTIONARY_ACCESSIBILITY parameter to TRUEFcreating a view based on V$SESSION and granting SELECT privilege to SMITH on the view that was created
问题：多选题Examine the commands executed in a DBA session：SQL> CREATE BIGFILE TABLESPACE MRKT 2 DATAFILE ’/u01/app/oracle/oradata/orcl/mrkt.dbf’ size 10M LOGGING 3 EXTENT MANAGEMENT LOCALSEGMENT SPACE MANAGEMENT AUTO； Tablespace created. SQL> ALTER DATABASE DEFAULT TABLESPACE MRKT； Database altered. Which two statements are trueregarding the MRKT tablespace（）ANo more data files can be added to the tablespace.BSegment space is managed by free lists in the tablespace.CA user created without being assigned a default tablespace uses this tablespace.DThe tablespace can be dropped with the current setting with segments present in it
问题：单选题Examine the commands executed in the following sequence： 1：SQL> CREATE ROLE mgrrole； 2：SQL> GRANT create user，select any table，connect，resource TO mgrrole； 3：SQL> GRANT select，update ON sh.sales TO mgrrole； 4：SQL> CREATE ROLE ceo IDENTIFIED BY boss； 5：SQL> GRANT mgrrole，drop any table，create any directory TO ceo； 6：SQL> GRANT ceo TO mgrrole； Which statement is true about the above commands（）A The commands execute successfully.B Command 6 produces an error because of circular role grant.C Command 5 produces an error because a role cannot be granted to another role.D Command 3 produces an error because the MGRROLE role already contains system privileges.E The table created by HR remains and HR still has the CREATE TABLE system privilege.F The table created by HR remains and HR can grant the CREATE TABLE system privilege to other users.
问题：多选题You execute this command to drop the ITEM table， which has the primary key referred in the ORDERS table：SQL> DROP TABLE scott.item CASCADE CONSTRAINTS PURGE； Which two statements are true about theeffect of the command（）ANo flashback is possible to bring back the ITEM table.BThe ORDERS table is dropped along with the ITEM table.CThe dependent referential integrity constraints in the ORDERS table are disabled.DThe dependent referential integrity constraints in the ORDERS table are removed.EThe table definition of the ITEM table and associated indexes are placed in the recycle bin
问题：单选题Your database is open and the LISTENER listener is running. The new DBA of the system stops the listener byusing the command：LSNRCTL> STOP What happens to the sessions that are presently connected to the database instance（）A The sessions are able to perform only queries.B The sessions are not affected and continue to function normally.C The sessions are terminated and the active transactions are rolled back.D The sessions are not allowed to perform any operations till the listener is started
问题：单选题Your database instance is currently configured to support 1，500 connections. The Web applicationthat uses the database allows a large number of users to work with the database simultaneously. Someusers of the Web application do not interact with the server all the time. You want to increase the scalability by configuring the database instance to handle more connections. Asa DBA， which configuration would you set to support more than 1，500 connections at a time（）A You would configure more listeners for the database.B You would configure the database in shared server mode to use the connection pooling feature.C You would increase the value of the PGA_AGGREGATE_TARGET initialization parameter that assigns more session memory to users.D You would decrease the value of the PRIVATE_SGA resource limit in the profiles used by the users to accommodate more session information.
问题：多选题Which three descriptions are correct about the effects of the TRUNCATE command on a table（）AThe corresponding indexes for the table are also truncated.BDelete triggers on the table are fired during the execution of the TRUNCATE command.CThe child table is truncated when the TRUNCATE command is applied on the parent table.DThe high-water mark （HWM） is set to point to the first usable data block in the table segment.ENo undo or very little undo data is generated during the execution of the TRUNCATE command
问题：单选题To make audit information more productive， the DBA executes the following command before startingan audit operation： SQL> ALTER SYSTEM SET AUDIT_TRAIL=DB，EXTENDED SCOPE=SPFILE； Which statement is true regarding the audit record generated when auditing starts after restarting thedatabase（）A It contains only the plan for the SQL statement executed by the user.B It contains the SQL text executed by the user and the bind variables used with it.C It contains the plan and statistics associated with the SQL statement executed by the user.D It contains the plan for the SQL statement executed by the user and the bind variables used with it.
