连接的会话不允许做任何操作直到监听启动
会话断掉，并且当前的事物回滚
当前连接的会话不受影响，操作继续
会话只能执行查询操作
单选题Your database is open and the LISTENER listener is running. The new DBA of the system stops thelistener by using the command： LSNRCTL> STOP What happens to the sessions that are presently connected to the database instance（）A The sessions are able to perform only queries.B The sessions are not affected and continue to function normally.C The sessions are terminated and the active transactions are rolled back.D The sessions are not allowed to perform any operations till the listener is started.
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单选题You issue these LSNRCTL commands： LSNRCTL> SET CURRENT_LISTENER listener01 LSNRCTL> START listener02 What is the result of issuing these commands？（）A A listener named LISTENER is started.B A listener named LISTENER01 is started.C A listener named LISTENER02 is started.D The START command fails and no listener is started.
单选题当前oracle数据库运行在open状态，LISTENER也正常运行，此刻一个dba执行如下命令LSNRCTL>STOP下面的描述中那个是正确的？（）A 连接的会话不允许做任何操作直到监听启动B 会话断掉，并且当前的事物回滚C 当前连接的会话不受影响，操作继续D 会话只能执行查询操作
单选题当前数据库运行在open状态，LISTENER也正常运行，此刻一个dba执行如下命令LSNRCTL>STOP下面的描述中那个是正确的？（）A 会话只能执行查询操作B 连接的会话不允许做任何操作直到监听启动C 当前连接的会话不受影响，操作继续D 会话断掉，并且当前的事物回滚
单选题Your database is open and the LISTENER listener is running. The new DBA of the system stops the listener byusing the command：LSNRCTL> STOP What happens to the sessions that are presently connected to the database instance（）A The sessions are able to perform only queries.B The sessions are not affected and continue to function normally.C The sessions are terminated and the active transactions are rolled back.D The sessions are not allowed to perform any operations till the listener is started
单选题Your database is open and the LISTENER listener running. You stopped the wrong listener LISTENER byissuing the following command:lsnrctl > STOPWhat happens to the sessions that are presently connected to the database Instance?（）A They are able to perform only queries.B They are not affected and continue to function normally.C They are terminated and the active transactions are rolled back.D They are not allowed to perform any operations until the listener LISTENER is started
单选题The listener has shut down unexpectedly. You want to view the listener log file and listener trace file to find the cause of the problem. How can you view the contents of the listener log file and the listener trace file？（）AOpen the file at the location specified by the BACKGROUND_DUMP_DEST parameter in the pfile.BOpen the file at the location specified by the USER_DUMP_DEST parameter in the pfile.CIssue the SERVICES command at the LSNRCTL> prompt.DIssue the STATUS command at the LSNRCTL> prompt.
