The database is running in ARCHIVELOG mode. Examine the initialization parameters and theirvalues set to enable archiving on your database server： 
LOG_ARCHIVE_FORMAT = arch_%t_%s_%r.arc 
LOG_ARCHIVE_DEST_1 = ’LOCATION = /disk1/archive’ 
DB_RECOVERY_FILE_DEST = ’/u01/oradata’ 
DB_RECOVERY_FILE_DEST_SIZE = 20G 
Which statement is true regarding the archived redo log files（）

多项选择题You are managing an Oracle Database 11g database. You configured the database to run inARCHIVELOG mode.  Which two statements are true in this scenario（）

A.You must shut down the database instance to perform the backups.
B.You must configure the Flash Recovery Area （FRA） for the database.
C.You can perform complete database backups without closing the database.
D.All the previous closed database backups including control files become invalid after you configure thedatabase to ARCHIVELOG mode.

单项选择题You want to enable archiving on your database. Presently， the database is running inNOARCHIVELOG mode. Given below are the steps to accomplish the task in random order：  1：Shut down the instance.  2：Execute the ALTER DATABASE ARCHIVELOG command.  3：Start up the instance and mount the database.  4：Set the DB_RECOVERY_FILE_DEST initialization parameter to $ORACLE_HOME dest_1. 5： Open the database.  Which is the correct sequence of steps for accomplishing the task（）

A.4，1，3，2，5
B.1，3，4，5，2
C.1，3，2，5；4 not required
D.4，1，5，2；3 not required
E.1，3，4，5；2 not required

单项选择题You configured the Flash Recovery Area for your database. The database instance has been startedin ARCHIVELOG mode and the LOG_ARCHIVE_DEST_1 parameter is not set.  What will be the implications on the archiving and the location of archive redo log files（）

A.Archiving will be disabled because the destination for the redo log files is missing.
B.The database instance will shut down and the error details will be logged in the alert log file.
C.Archiving will be enabled and the destination for the archived redo log file will be set to the FlashRecovery Area implicitly.
D.Archiving will be enabled and the location for the archive redo log file will be created in the defaultlocation $ORACLE_HOME/log.

多项选择题You configured the Flash Recovery Area （FRA） for your database. The database instance is runningin ARCHIVELOG mode. The default location for the archived redo log files is the Flash Recovery Area.  Which two files are removed automaticallyif the space is required in the FRA as per the retention policy（）

A.flashback log files
B.backups that have become obsolete
C.copies of the data files and control files
D.archived redo log files that have multiple copies in a different archive location and not backed up

单项选择题You are working on an instance started using the SPFILE. You want to move the Flash Recovery Areaof your database to a new location. You want the Flashback log files to be stored in the new location. Given below are the steps to accomplish the task in random order：  1）Shut down the instance.  2）Change the value of the DB_RECOVERY_FILE_DEST initialization parameter to a new value.  3）Execute the ALTER DATABASE FLASHBACK OFF command.  4）Start up the instance and mount the database.  5）Execute the ALTER DATABASE FLASHBACKON command.  6）Open the database.  Select the correct order in which these tasks need to be performed. （）

A.2，1，4，3，5，6
B.1，4，3，2，6，5
C.1，4，2，6，3，5
D.3，2，1，4，5，6