You are about to create your Oracle data dictionary for use with the database. Which of the following users would you connect to the database as for this purpose in Oracle9i and later releases?()A、SYSTEM B、OUTLN C、INTERNAL D、SYS
You are about to create your Oracle data dictionary for use with the database. Which of the following users would you connect to the database as for this purpose in Oracle9i and later releases?()
- A、SYSTEM
- B、OUTLN
- C、INTERNAL
- D、SYS
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ou need to configure fine-grained access control to external network resources from within your database. You create an access control list (ACL) using the DBMS_NETWORK_ACL_ADMIN package. Which statement is true regarding the ACL created?()A、 It is a list of remote database links stored in the XML file that are available to the users of the database.B、 It is a list of users and network privileges stored in the XML file according to which a group of users can connect to one or more hosts.C、 It is a list of users and network privileges stored in the data dictionary according to which a group of users can connect to one or more hosts.D、 It is the list of the host names or the IP addresses stored in the data dictionary that can connect to your database through PL/SQL network utility packages such as UTL_TCP.
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From the V$SESSION_LONGOPS view, you find that some of the database users have long-running queries and are consuming a lot of CPU time. This causes problems for you when you try to log on as the system user and perform small maintenance tasks. You would like to ensure that users SYS and SYSTEM get priority over all other users. Which method would you use to achieve this objective?()A、create a plan directive in the SYS_GROUPB、create the pending area for the consumer groupC、activate the provided SYSTEM_PLAN in Resource ManagerD、set the TIMED_STATISTICS parameter to TRUE in the parameter fileE、set the execution time limit for all users, except SYS and SYSTEM, in their profiles
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You are working as a Database Administrator. Despite having a password in the data dictionary as change_on_install, you always log on to the database MYNEWDB using operating system authentication. Your organization is planning to recruit two junior-level DBAs. You decide to enable remote authentication in your database so that the new DBAs can log on to the database from their workstations to carry out administrative tasks. To allow the new DBAs to perform the administrative tasks, you create a password file on the database server using the following command: ORAPWD file=d:/oracle/ora9i/orapwU01 password=admin entries=4 After creating the password file, you remove the operating system authentication and change the value of the REMOTE_LOGIN_PASSWORDFILE parameter to EXCLUSIVE. You also create a net service name as MYNEWDB that allows the new DBAs to connect to the database server from their workstations using this net service name. Which command must you use to connect to the database to start it?() A、 CONNECT / AS SYSDBAB、 CONNECT sys/admin AS SYSDBAC、 CONNECT sys/admin@mynewdb AS SYSDBAD、 CONNECT sys/change_on_install AS SYSDBA
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单选题You are using flat files as the data source for one of your data warehousing applications. To optimizethe application performance, you plan to move the data from the flat files toclustered tablesin an Oracle database. While migrating the data, you want to have minimal impact on the database performance and optimize thedata load operation. Which method would you use to load data into the Oracle database()AUse the external table population.BUse the Oracle Data Pump export and import utility.CUse the conventional path data load of the SQL*Loader utility.DUse the INSERT INTO...SELECT command to load the data.
单选题You need to configure fine-grained access control to external network resources from within your database. You create an access control list (ACL) using the DBMS_NETWORK_ACL_ADMIN package. Which statement is true regarding the ACL created?()AIt is a list of remote database links stored in the XML file that are available to the users of the database.BIt is a list of users and network privileges stored in the XML file according to which a group of users can connect to one or more hosts.CIt is a list of users and network privileges stored in the data dictionary according to which a group of users can connect to one or more hosts.DIt is the list of the host names or the IP addresses stored in the data dictionary that can connect to your database through PL/SQL network utility packages such as UTL_TCP.
单选题You work as a database administrator for Supportcenter.cn. Your database is in NOARCHIVELOG mode. The database has been configured with three redo logs groups, and there have been five log switches. You lost one non-system-critical data file from your database. Which method would you use to recover the data file?()ARestore all the data files and open the databaseBCreate the data file and perform tablespace recoveryCNo need to restore any file, just recover the databaseDRestore only the system data file and recover the databaseERestore only lost date file and performtablespacerecovery
单选题You are managing the APPPROD database as a DBA which is not using the Oracle-managed files. You plan to duplicate this database in the same system with the name DUPDB.You want to create the same directory structure for duplicate database files as of the target database. You executed the following RMAN commands: RMAN CONNECT TARGET sys/sys@APPPROD RMAN CONNECT AUXILIARY sys/sys@DUPDB RMAN DUPLICATE TARGET DATABASE TO dupdb FROM ACTIVE DATABASE PASSWORD FILE SPILE NOFILENAMECHECK; What are the implications of this command?()A It creates database files for the duplicate database under the Oracle base with a different directory for the duplicate database.B It overwrites data files of the target database because a different location for data files is not mentioned for the duplicate database.C It creates database files for the duplicate database under the same Oracle home as that of the target database with the same directory structure.D It creates database files for the duplicate database under the same Oracle home as that of the target but with a different directory for the duplicate database.
单选题You are using flat files as the data source for one of your data warehousing applications. You plan to move the data from the flat file structures to an Oracle database to optimize the application performance. In your database you have clustered tables. While migrating the data, you want to have minimal impact on the database performance and optimize the data load operation. Which method would you use to load data into Oracle database?()Ause the external table populationBuse the Oracle Data Pump export and import utilityCuse the conventional path data load of SQL*Loader utilityDuse the direct path data load of Oracle export and import utility
单选题You work as a database administrator for Supportcenter.cn. In a production environment, users complain about the slow response time when accessing the database. You have not optimized the memory usage of the Oracle instance and you suspect the problem to be with the memory. To which type of object would you refer to determine the cause of the slow response?()AThe trace fileBThe fixed viewsCThe data dictionary viewsDThe operating system log fieldsEThe dynamic performance views.
单选题You are about to create your Oracle data dictionary for use with the database. Which of the following users would you connect to the database as for this purpose in Oracle9i and later releases?()ASYSTEM BOUTLN CINTERNAL DSYS