单选题In order to enable remote administration of users and tablespaces on an Oracle database, which of the following types of files must exist in the database?（）A Password file B Initialization file C Datafile D Control file E Nothing - SYSDBA privileges ar

第1题：

You are a Database Administrator with WonderWeb. You use a password file to establish connections to the Sales database located on the server. You created the password file using the following command：        ORAPWD file=d：/oracle/ora9i/orapwU01 password=admin entries=4   You erroneously deleted the password file while the database was running. You re-create the password file using the following command：   ORAPWD file=d：/oracle/ora9i/orapwU01 password=change_on_install entries=4   However， when you try to connect as the SYS user， you receive the following error：        ORA-01031： insufficient privileges   What should you do to resolve this error？（）

• A、 Delete the newly created password file and re-create another password file with the password admin， without shutting down the database.
• B、 Enable the operating system authentication， shut down the database， disable the operating system authentication， and restart the database using the password file.
• C、 Enable the operating system authentication， shut down the database， re-create the password file using the same ORAPWD command， and restart the database using the password file.
• D、 Delete the newly created password file， enable operating system authentication and shut down the database. Then， re-create another password file using the same ORAPWD command and restart the database using this password file.

第2题：

You decide to enable Flashback Database in your Oracle 10g database so that future recoveries will take less time than traditional recoveries. Which of the following parameters must be included in your initialization parameter file before enabling Flashback Database？（）

• A、 DB_RECOVERY_FILE_DEST only
• B、 DB_FLASHBACK_RETENTION_TARGET only
• C、 DB_RECOVERY_FILE_DEST_SIZE and DB_RECOVERY_FILE_DEST only
• D、 DB_RECOVERY_FILE_DEST and DB_FLASHBACK_RETENTION_TARGET only
• E、 DB_RECOVERY_FILE_DEST_SIZE， DB_RECOVERY_FILE_DEST and
• F、 DB_FLASHBACK_RETENTION_TARGET

第3题：

第4题：

You are part of the DBA team working for a multinational bank. The team is responsible for performing administrative tasks on the database server located at the home office. The database server at the home office has a production database and a test database named TESTDB. The test database is primarily used for testing database commands and configuration settings befor implementing these settings on the production database. The test database is also used for the development of database applications. You have been asked by the senior DBA to grant the SYSDBA privilege to a new team member， John， so that he can perform some administrative tasks， such as shutdown and startup operations， on TESTDB. You use the password file to configure remote authentication on the TESTDB database. You execute the following statement to grant the SYSDBA privilege to John：   SQL>GRANT SYSDBA TO john；   However， you receive the following error：   ORA-01996： GRANT failed： password file   ’c：/oracle/ora9i/dbs/testdb.pwd’ is full   Which action should you take to add the user john to the password file without removing any of the existing users？（）

• A、 Create another password file and then re-execute the GRANT statement.
• B、 Re-create the password file， specifying a larger number of allowed entries， and then re-execute the GRANT statement.
• C、 Change the value of the REMOTE_LOGIN_PASSWORDFILE initialization parameter in theinitialization parameter file to NONE and then re-execute the GRANT statement.
• D、 Change the value of the REMOTE_LOGIN_PASSWORDFILE initialization parameter in the initialization parameter file to SHARED and then re-execute the GRANT statement.

第5题：

Which two file types must be included in a closed database backup taken with operating system commands？（）

• A、data files
• B、control file
• C、password file
• D、online redo log files
• E、initialization parameter file

第6题：

You Execute the Following command to create a password file in the database server: $ orapwd file = ‘+DATA/PROD/orapwprod entries = 5 ignorecase = N format = 12’ Which two statements are true about the password file?（）

• A、It records the usernames and passwords of users when granted the DBA role.
• B、It contains the usernames and passwords of users for whom auditing is enabled.
• C、Is used by Oracle to authenticate users for remote database administration.
• D、It records the usernames and passwords of all users when they are added to the OSDBA or OSOPER operating system groups.
• E、It supports the SYSBACKUP, SYSDG, and SYSKM system privileges.

第7题：

ou are implementing control file multiplexing. Which of the following choices identifies the method you can use in order to generate the control file copies that Oracle will maintain?（）

• A、Issue ALTER DATABASE BACKUP CONTROLFILE TO filename
• B、Make a copy of the control file with the database shut down
• C、Issue ALTER DATABASE BACKUP CONTROLFILE TO trace
• D、Make a copy of the control file with the database still running 

第8题：

第9题：

In your database，the LDAP_DIRECTORY_SYSAUTH initialization parameter has been set to YES and the users who need to access the database as DBAs have been granted SYSDBA enterprise role in Oracle Internet Directory （OID）. SSL and the password file have been configured. A user SCOTT with the SYSDBA privilege tries to connect to the database instance from a remote machine using the command：$ SQLPLUS scott/tiger@DB01 AS SYSDBA   where DB01 is the net service name.   Which authentication method would be used first？（）  

• A、 authentication by password file
• B、 authentication by using certificates over SSL
• C、 authentication by using the Oracle Internet Directory
• D、 authentication by using the local OS of the database server

第10题：

You have created a password file using the following command：   ORAPWD file=d：/oracle/ora9i/orapwU01 password=change_on_install entries=3   Which of the following is true about this password file？（）

• A、 If the REMOTE_LOGIN_PASSWORDFILE parameter is set to SHARED in the initialization parameter file， then a maximum of three users can be granted the SYSDBA or SYSOPER privileges.
• B、 If the REMOTE_LOGIN_PASSWORDFILE parameter is set to EXCLUSIVE in the initialization parameter file， then a maximum of three users can be granted the SYSDBA or SYSOPER privileges.
• C、 If the REMOTE_LOGIN_PASSWORDFILE parameter is set to SHARED in the initialization parameter file， then the SYSDBA and SYSOPER privileges can be granted to other users as long as space in the password file is
• D、 If the REMOTE_LOGIN_PASSWORDFILE parameter is set to EXCLUSIVE in the initialization parameter file， then the SYSDBAand SYSOPER privileges can be granted to other users as long as space in the password file is available.