Examine the commands executed to monitor database operations: $> conn sys oracle/oracle@prod as sysdba SQL > VAR eid NUMBER SQL > EXEC: eid := DBMS_SQL_MONITOR.BEGIN_OPERATION (‘batch_job’ , FORCED_TRACKING => ‘Y’); Which two statements are true?（）

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• Examine the following command：   ALTER DISKGROUP data MOUNT FORCE；   In which scenario can you use the above command to mount the disk group？（）  

  A .  when ASM disk goes offline B .  when one or more ASM files are dropped C .  when some disks in a disk group are offline D .  when some disks in a failure group for a disk group are rebalancing

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• Examine the following command: SQL> ALTER TABLE booking SHRINK SPACE COMPACT; Which activity is performed when the preceding command is executed?（）

  A . The shrink operation touches every block in the BOOKING table B . The high-water mark (HWM) for the BOOKING table is shifted from its original position C . The progress of the shrink operation is saved in the bitmap blocks of the BOOKING table D . The data manipulation language (DML) triggers on the BOOKING table are executed because the shrink operation is internally handled by the INSERT/DELETE operatio

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• Examine the following impdp command to import a database over the network from a pre-12c Oracledatabase (source): Which three are prerequisites for successful execution of the command?（）

  A . The import operation must be performed by a user on the target database with the DATAPUMP_IMP_FULL_DATABASE role, and the database link must connect to a user on the source database with the DATAPUMP_EXD_FULL_DATABASE role. B . All the user-defined tablespaces must be in read-only mode on the source database. C . The export dump file must be created before starting the import on the target database. D . The source and target database must be running on the same platform with the same endianness. E . The path of data files on the target database must be the same as that on the source database. F . The impdp operation must be performed by the same user that performed the expdp operation.

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• View the Exhibit to examine the output for the CROSSCHECK BACKUP command. Which statement is trueabout the output of the command（） https://assets.asklib.com/images/image2/2018080117575419854.jpg

  A . The backup piece is expired as the new backup is available. B . The backup piece is expired because the operating-system file was not found. C . The backup piece is expired because the retention period for the backup has expired. D . The backup piece is expired because the backup set to which it belongs is not complete

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• Examine the following RMAN command: RMAN> CONFIGURE ENCRYPTION FOR DATABASE ON; RMAN> BACKUP DATABASE PLUS ARCHIVELOG; Which prerequisite must be met before accomplishing the backup?（）

  A . Provide a password for the encryption B . Set up an Oracle wallet for the encryption C . No setup is required as it is a default encryption method D . Both Oracle wallet and password must be set up for the encryptio

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• Examine the following command: ALTER DISKGROUP data MOUNT FORCE; In which scenario can you use the above command to mount the disk group? （）

  A . when ASM disk goes offline B . when one or more ASM files are dropped C . when some disks in a disk group are offline D . when some disks in a failure group for a disk group are rebalancing

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• Examine the following command：   SQL> ALTER TABLE booking SHRINK SPACE COMPACT；   Which activity is performed when the preceding command is executed？（）

  A .  The shrink operation touches every block in the BOOKING table B .  The high-water mark （HWM） for the BOOKING table is shifted from its original position C .  The progress of the shrink operation is saved in the bitmap blocks of the BOOKING table D .  The data manipulation language （DML） triggers on the BOOKING table are executed because the shrink operation is internally handled by the INSERT/DELETE operatio

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• Examine the command： SQL> ALTER USER skd ACCOUNT LOCK； Which two statements are true after the command is executed（）

  A . The SKD user cannot log in to the database instance. B . The objects owned by the SKD user are not accessible to any user. C . The other users can access the objects owned by the SKD user， on which they have access. D . The password for the SKD user expires and the user is forced to change the password at the next log in.

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• Examine the following ALTER command: SQL> ALTER DISKGROUP dgroup1 UNDROP DISKS; What is the purpose of the command?（）

  A . It cancels all pending disk drops within the disk group. B . It restores disks that are being dropped as the result of a DROP DISKGROUP operation C . It mounts disks in the disk group for which the drop-disk operation has already been co pleted D . It restores all the dropped disks in the disk group for which the drop-disk operation has already been completed E . It adds previously dropped disks back into the disk grou

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• Examine the command：  SQL> DBMS_STATS.SET_TABLE_PREFS（’SH’， ’CUSTOMERS’， ’PUBLISH’， ’false’）； Which statement describes the effect of the above command（）

  A . Automatic statistics collection is stopped for the CUSTOMERS table. B . Statistics for the CUSTOMERS table are locked and cannot be overwritten. C . Existing statistics for the CUSTOMERS table become unusable for the query optimizer. D . Subsequently， statistics gathered on the CUSTOMERS table are stored as pending statistics.

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• Examine the command： SQL> ALTER USER skd ACCOUNT LOCK； Which two statements are true after the command is executed（）

  A . The SKD user cannot log in to the database instance. B . The objects owned by the SKD user are not accessible to any user. C . The other users can access the objects owned by the SKD user， on which they have access. D . The password for the SKD user expires and the user is forced to change the password at the next log i

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• Examine the following command; ALTER SYSTEM SET enable_ddl_logging = TRUE; Which statement is true?（）

  A . Only the data definition language (DDL) commands that resulted in errors are logged in the alert log file. B . All DDL commands are logged in the alert log file. C . All DDL commands are logged in a different log file that contains DDL statements and their execution dates. D . Only DDL commands that resulted in the creation of new segments are logged. E . All DDL commands are logged in XML format in the alert directory under the Automatic Diagnostic Repository (ADR) home.

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• Examine the following RMAN command: https://assets.asklib.com/images/image2/201808021135212163.jpg Which two statements are true regarding the backup taken by using the above RMAN command?（）

  A . Only data files and the control file are backed up. B . Archived redo logs are backed up only I f the database is open during the backup. C . The backup is deleted after one day, regardless of the default retention policy settings. D . The backup becomes obsolete after one day, regardless of the default retention policy settings.

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• Examine the RMAN command： SWITCH DATAFILE ’/DISK3/user_data01.dbf’； Which command do you need to issue before you issue the above command， so that RMAN finds the file in the restored location of ’DISK2/user_data01.dbf’？ （）

  A . RESTORE DATAFILE ’/DISK2/user_data01.dbf’ B . RESTORE DATAFILE ’/DISK3/user_data01.dbf’ C . SET NEWNAME FOR ’/DISK3/user_data01.dbf’ TO’/DISK2/user_data01.dbf’ D . SET NEWNAME FOR ’/DISK2/user_data01.dbf’ TO’/DISK3/user_data01.dbf&rsquo

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• To examine the Exhibit, press the Exhibit button. Which option would produce this output from the errpt command? （）https://assets.asklib.com/images/image2/20180802115800592.jpg

  A .  errpt -t  B .  errpt -a  C .  errpt -D  D .  errpt

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• Examine the following ALTER command：   SQL> ALTER DISKGROUP dgroup1 UNDROP DISKS；   What is the purpose of the command？（）  

  A .  It cancels all pending disk drops within the disk group. B .  It restores disks that are being dropped as the result of a DROP DISKGROUP operation C .  It mounts disks in the disk group for which the drop-disk operation has already been co pleted D .  It restores all the dropped disks in the disk group for which the drop-disk operation has already been completed E .  It adds previously dropped disks back into the disk grou

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• Examine the following RMAN command：   BACKUP DATABASE TAG TESTDB  KEEP UNTIL ’SYSDATE+1’ RESTORE POINT TESTDB06；   Which two statements are true regarding the backup taken by using the above RMAN command？（）  

  A .  Only data files and the control file are backed up. B .  Archived redo logs are backed up only if the database is open during the backup. C .  The backup is deleted after one day，regardless of the default retention policy settings.  D .  The backup becomes obsolete after one day，regardless of the default retention policy settings.

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• View the Exhibit to examine the output for the CROSSCHECK BACKUP command. https://assets.asklib.com/images/image2/2018080115551810468.jpg Which statement is true about the output of the command（）

  A . The backup piece is expired as the new backup is available. B . The backup piece is expired because the operating-system file was not found. C . The backup piece is expired because the retention period for the backup has expired. D . The backup piece is expired because the backup set to which it belongs is not complete.

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• Examine 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 . Statistics gathered on the CUSTOMERS table when schema stats are gathered are stored as pending statistics. E . Statistics gathered on the CUSTOMERS table when database stats are gathered are stored as pending statistics.

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• Examine the command：   ALTER DATABASE ADD SUPPLEMENTAL LOG DATA （PRIMARY KEY） COLUMNS；   What does the command accomplish？（）

  A . Creates an additional copy of the database online redo log files.  B . Stores the primary key column values of each row involved in a DML operation in the online redo log files.  C . Stores the primary key column values of each row involved in a DML operation in the supplemental log files.  D . Stores the old and new primary key column values of each row involved in a DML operation only when the primary key is modified in the online redo log files.

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• Examine the following command:ALTER SYSTEM SET enable_ddl_logging=FALSE;Which statement is true?（）

  A . None of the data definition language (DDL) statements are logged in the trace file. B . Only DDL commands that resulted in errors are logged in the alert log file. C . A new log.xml file that contains the DDL statements is created, and the DDL command details are removed from the alert log file. D . Only DDL commands that resulted in the creation of new database files are logged.

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• Examine the command： SQL> DBMS_STATS.SET_TABLE_PREFS（’SH’， ’CUSTOMERS’， ’PUBLISH’， ’false’）；  Which statementdescribes the effect of the above command（）

  A . Automatic statistics collection is stopped for the CUSTOMERS table. B . Statistics for the CUSTOMERS table are locked and cannot be overwritten. C . Existing statistics for the CUSTOMERS table become unusable for the query optimizer. D . Subsequently， statistics gathered on the CUSTOMERS table are stored as pending statistic

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• Examine the following commands for redefining a table with Virtual Private Database （VPD) policies:Which two statements are true about redefining the table？（）

  <img src='https://img2.soutiyun.com/shangxueba/ask/64224001-64227000/64224740/398a37009eba261eceebfd5a001edaba.png' /> <img src='https://img2.soutiyun.com/shangxueba/ask/64224001-64227000/64224740/a5add098aa6143b225044036df53c199.png' /> A. All the triggers for the table are disabled without changing any of the column names or column types in the table. B. The primary key constraint on the EMPLOYEES table is disabled during redefinition. C. VPD policies are copied from the original table to the new table during online redefinition. D. You must copy the VPD policies manually from the original table to the new table during online redefinition.

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• Examine the following ALTER command:SQL＞ ALTER DISKGROUP dgroup1 UNDROP DISKS;What is the purpose of the command？（）

  A. It cancels all pending disk drops within the disk group B. It restores disks that are being dropped as the result of a DROP DISKGROUP operation C. It mounts disks in the disk group for which the drop-disk operation has already been completed D. It restores all the dropped disks in the disk group for which the drop-disk operation has already been completed E. It adds previously dropped disks back into the disk group

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