In your Supportcenter.cn database server the parameter PLSQL

第1题：

Your boss at Supportcenter.cn wants you to clarify Oracle 10g. Which condition in your database forces you to perform only consistent backups？（）

• A、The database is in mount state.
• B、One of the tablespaces is offline.
• C、One of the tablespaces is read only.
• D、The database operates in ARCHIEVELOG mode. 
• E、The database operates in NOARCHIEVELOG mode.

第2题：

In your Certkiller .com database server the parameter PLSQL_CODE_TYPE has been set to NATIVE. Which object would be achieved by the setting？（）

• A、The source PL/SQL code will be stored in native machine code.
• B、The source PL/SQL code will be stored in interpreted byte code.
• C、The compiled PL/SQL code will be stored in native machine code.
• D、The compiled PL/SQL code will be stored in interpreted byte code.

第3题：

You are working in a dedicated server environment. Your database is running in the automatic Program Global Area （PGA） memory management mode. Which two statements are correct in this scenario？ （）

• A、 The WORK_AREASIZE_POLICY initialization parameter cannot be set to AUTO.
• B、 The Oracle database automatically controls the amount of PGA memory allotted to SQL work areas.
• C、 Setting the value of the SGA_TARGET initialization parameter to 0 will disable the automatic PGA memory management.
• D、 The SORT_AREA_SIZE parameter is ignored by all the sessions running in the automatic PGA memory management mode.

第4题：

In your Supportcenter.cn production database，you find that the database users are able to create and read files with unstructured data，available in any location on the host machine from an application. You want to restrict the database users to access files in a specific location on the host machine. What could do to achieve this？（）

• A、Modify the value for the UTL_FILE_DIR parameter in the parameter file
• B、Grant read and write privilege on the operating system path to the database users
• C、Modify the value for the LDAP_DIRECTORY_ACCESS parameter in the parameter file
• D、Modify the value for the PLSQL_NATIVE_LIBRARY_DIR parameter in the parameter file
• E、Create a directory object referring to the operating system path， and grant read and write privilege on the directory object to the database users

第5题：

You have been recently hired as a database administrator. Your senior manager asks you to study the production database server and submit a report on the settings done by the previous DBA.  While observing the server settings， you find that the following parameter has been set in the parameter file of the database：  REMOTE_OS_AUTHENT = TRUE  What could have been the reason to set this parameter as TRUE？（）

• A、to enable operating system authentication for a remote client
• B、to restrict the scope of administration to identical operating systems
• C、to allow the start up and shut down of the database from a remote client
• D、to enable the administration of the operating system from a remote client
• E、to disable the administration of the operating system from a remote client

第6题：

Your PROD database has been started using the server parameter file. In your PROD database you are using RMAN for backup and recovery operations. You issue the following commands from the RMAN prompt：     RMAN> CONFIGURE CONTROLFILE AUTOBACKUP OFF；   RMAN> BACKUP DATABASE；   Which files from the database will be backed up as a result of this BACKUP command？（）

• A、 control file
• B、 all datafiles
• C、 password file
• D、 online redo log file
• E、 archive redo log file
• F、 server parameter file
• G、 only the SYSTEM datafile

第7题：

You work as a database administrator for Certkiller .com. In your database server， the parameter PLSQL_OPTIMIZE_LEVEL has been set to 2. What would this setting achieve？（）

• A、It degrades the run time and compiler performance.
• B、It provides better run time and compiler performance.
• C、It provides better optimization of the statement during parse time.
• D、It forces the rule based optimizer to be used for statement optimization.
• E、It provides better run time performance but slightly degraded compiler performance. 
• F、It provides better run time performance but slightly degraded run time performance.

第8题：

Your database is started by using the server parameter file （SPFILE）. You issued this command to change the value of the LOG_BUFFER initialization parameter：  ALTER SYSTEM SET LOG_BUFFER=24M SCOPE=BOTH;  What would be the outcome of this command？（）

• A、The command would return an error because LOG_BUFFER is a static parameter.
• B、The parameter value would be changed and it would come into effect immediately.
• C、You need to restart the database so that parameter changes can come into effect.
• D、The command would succeed only if initialization parameter LOG_ARCHIVE_MAX_PROCESS is set to value 2.

第9题：

You are maintaining your database in Oracle10g. You are performing the backup by using the BACKUP AS BACKUPSET command at the RMAN prompt. Which file cannot be backed up by using the BACKUP AS BACKUPSET command？（）

• A、Datafiles
• B、 Current control file
• C、 Server parameter file （spfile）
• D、 Password file

第10题：

Every Sunday the Unix system administrator has a job that executes a full backup of the entire Unix system your database is on. Is this backup usable for backup and recovery of your database？（）  

• A、 Yes， if the database is in ARCHIVELOG mode
• B、 Yes， if the database is in NOARCHIVELOG mode
• C、 No， the backup is not usable in any way
• D、 Only if the ENABLE_ONLINE_BACKUP parameter is set to TRUE