多选题You work as a database administrator for Supportcenter.cn. You decided to manage client and server connections using Local Naming method in Supportcenter.cn. When you try to connect to the database you get the following error： ERROR：   ORA-12154：TNS：co

第1题：

You work as a database administrator for Supportcenter.cn. Client connection requests are failing because the listener is not responding. You want to forward client connect requests to another listener if one listener is not responding. How do you achieve this？（）

• A、Enable instance failover
• B、Configure shared server
• C、Enable database failover
• D、Enable connect-time failover
• E、Enable Transparent Application Failover （TAF）

第2题：

You work as a database administrator for Certkiller .com. When you tried to connect to the database， you received the following error： ERROR：  ORA-12541：TNS：no_listener  You found that the listener is not running on the server， so you issued the following command in the Listener Control utility to start the listener.  lsnrctl>START  What statement is true？（）

• A、It would attempt to start the default listener
• B、It would start the most recently created listener.
• C、It would display an error with a message asking for the listener name to be specified.
• D、It would show you a list of listeners and prompts for the listener name that you want to start.

第3题：

You are connecting to an Oracle database server from a client by using the following connect string：   SQL> CONNECT hr/hr@pdserver.us.oracle.com：1521/proddb   Which naming method is being used in this case？（）

• A、Local Naming
• B、Easy Connect
• C、External Naming
• D、Directory Naming

第4题：

You work as a database administrator for Certkiller .com. You decided to manage client and server connections using Local Naming method in Certkiller .com. When you try to connect to the database you get the following error： ERROR：  ORA-12154：TNS：couldnot resolve service name  Which network configuration files would you look into to resolve this error？（）

• A、snmp.ora
• B、names.ora
• C、spfile.ora
• D、sqlnet.ora
• E、listener.ora
• F、tnsnames.ora

第5题：

You work as a database administrator for Supportcenter.cn. Because of space constraints， you decided to manually shrink the table. You executed the ALTER TABLE ....SHRINK SPACE statement to shrink the space and you receive an error as follows：   ERROR at Line 1：   ORA-10635： Invalid segment or tablespace type   What could be the reason？ （）

• A、The table is partitioned
• B、The table name is wrong.
• C、It is an index-Organized table （IOT）
• D、The table is stored in locally managedtablespace.
• E、The table is stored in atablespacewhere segment space is managed manually.

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第13题：

You work as a database administrator for Supportcenter.cn. You received the following error while working on your database： ORA-01555： snapshot too old ，In which situation would you receive such an error？（）

• A、You performed rollback after commit.
• B、If a log switch occurs in your database.
• C、Thearchiverfails to generate an archived log file.
• D、Instance recovery fails to find one of the redo log files.
• E、A long-running query is unable to get read-consistent image.
• F、If you perform manual undo management operations in auto mode.

第14题：

You work as a database administrator for Supportcenter.cn. You decided to manage client and server connections using Local Naming method in Supportcenter.cn. When you try to connect to the database you get the following error： ERROR：   ORA-12154：TNS：couldnot resolve service name   Which network configuration files would you look into to resolve this error？（）

• A、snmp.ora
• B、names.ora
• C、spfile.ora
• D、sqlnet.ora
• E、listener.ora
• F、tnsnames.ora

第15题：

An administrator account is granted the CREATE SESSION and SET CONTAINER system privileges. A multitenant container database (CDB) instant has the following parameter set: THREADED_EXECUTION = FALSE Which four statements are true about this administrator establishing connections to root in a CDB that has been opened in read only mode?（）

• A、You can conned as a common user by using the connect statement.
• B、You can connect as a local user by using the connect statement.
• C、You can connect by using easy connect.
• D、You can connect by using OS authentication.
• E、You can connect by using a Net Service name.
• F、You can connect as a local user by using the SET CONTAINER statement.

第16题：

You work as a database administrator for Supportcenter.cn. You are using three database， SupportCenter DB01， SupportCenter DB02， and SupportCenter DB03， on different host machines in your development environment. The database server configuration， such as IP address and listener port number， change frequently due to development requirements， and you have the task of notifying the developers of the changes. Which connection method would you use to overcome this overhead？（）

• A、Host naming
• B、Local naming
• C、Easy Connect
• D、External naming
• E、directory naming

第17题：

You work as a database administrator for Supportcenter.cn. In your production database， the size of Database Buffer Cache needs to be increased immediately for the current as well as future instances of the database. The Oracle instance has been configured to accommodate any changes in the size of the memory structures. At this is production database， you want to accomplish this task with no impact on the user’s connections. Which activity must you have completed before accomplishing this task？（）

• A、You must have started the database instance in restricted mode.
• B、You must have started the database instance inNORMALmode.
• C、You must have started the database instance with server parameter file.
• D、You must have started the database instance but must not have mounted.
• E、You must have started the database instance but must not have opened.

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