Which three components does the Scheduler use for managing tasks within the Oracle environment?（）

A

a job

B

a program

C

a schedule

D

a PL/SQL procedure

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• You wish to enable an audit policy for all database users, except SYS, SYSTEM, and SCOTT.You issue the following statements: SQL> AUDIT POLICY ORA_DATABASE_PARAMETER EXCEPT SYS;SQL> AUDIT POLICY ORA_DATABASE_PARAMETER EXCEPT SYSTEM; SQL> AUDIT POLICY ORA_DATABASE_PARAMETER EXCEPT SCOTT; For which database users is the audit policy now active?（）

  A、All users except SYS

  B、All users except SCOTT

  C、All users except sys and SCOTT

  D、All users except sys, system, and SCOTT

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• What feature comes into play to help ensure the completion of the backup should one of three backup devices fail during a backup that is using three different channels?（）

  A、Channel failover

  B、Restartable backups 

  C、Rescheduable backups 

  D、Automatic backup recovery 

  E、Channel recovery

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• 在信息传递的过程中，描绘信息最准确的方式是（），但是速度慢、不直观。

  A、声音

  B、图像

  C、文字

  D、气息

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• Which statement is true about Oracle Net Listener?（）

  A、It acts as the listening endpoint for the Oracle database instance for all local and non-local user connections.

  B、A single listener can service only one database instance and multiple remote client connections.

  C、Service registration with the listener is performed by the process monitor (PMON) process of each database instance.

  D、The listener.ora configuration file must be configured with one or more listening protocol addresses to allow remote users to connect to a database instance.

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• Which tool is based on the AIX trace facility？（）

  A、 no

  B、 netpmon

  C、 entstat

  D、 nfso

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