our database instance is running. You are not able to access Oracle Enterprise Manager Database Control because the listener is not started.Which tool or utility would you use to start the listener?（）

A、Oracle Net Manager

B、Listener Control utility

C、Database Configuration Assistant

D、Oracle Net Configuration Assistant

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• Which files will you need to perform a full recovery of a database backed up in NOARCHIVELOG mode？（） 

  A

   Database datafiles

  B

   Control files

  C

   Archived redo logs

  D

   Online redo logs

  E

   Flashback logs

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• Which DBMS_SCHEDULER procedure（s） can be used to alter an existing job？（）

  A

   SET_ATTRIBUTE_NULL

  B

   ALTER_JOB

  C

   ALTER_JOB_PARAMETERS

  D

   ALTER

  E

   SET_ATTRIBUTE

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• Examine the following commands and their output: View the exhibit and examine the Flashback Version Query that was executed after the preceding commands. What could be the possible cause for the query not displaying any row?（）

  A、 Flashback logging is not enabled for the database.

  B、 The changes made to the table are not committed.

  C、 Supplemental logging is not enabled for the database.

  D、 The database is not configured in ARCHIVELOG mode.

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• In Recovery Manager (RMAN), you are taking image copies of the datafiles of your production database and rolling them forward as regular intervals. You attempt to restart your database instance after a regular maintenance task, you realize that one of the data files that belongs to the USERS tablespace is damaged and you need to recover the datafile by using the image copy. You could perform the following steps to accomplish this: 1) Mount the database 2) Take the data file offline 3) Bring the data file online 4) Use the RMAN SWITCH TO command to switch the image copy 5) Apply the archived redo logs 6) Open the database 7) Use the RMAN RESTORE TO command to switch to the image copy Which two options illustrate the correct sequence of steps that you could follow?（） (Choose two.)

  A

  2, 6, 4, 5, 3

  B

  1, 2, 4, 5, 3, 6

  C

  1, 2, 4, 6, 3

  D

  1, 2, 7, 5, 3, 6

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• Your database is running in ARCHIVELOG mode. One of the data files， USERDATA01.dbf， in the USERS tablespace is damaged and you need to recover the file until the point of failure. The backup for the datafile is available.  Which three files would be used in the user-managed recovery process performed by the database administrator （DBA）？（） 

  A

   Redo logs 

  B

   Control file

  C

   The latest backup of only the damaged data file

  D

   The latest backup of all the data file in the USERS tablespace

  E

   Temporary files of temporary tablespace

  F

   Archive Logs since the latest backup to point of failure

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