Oracle Database 12c: Advanced Administration — Question 20

Your database is running in archivelog mode. Examine the parameters for your database instance:
LOG_ARCHIVE_DEST_l ='LOCATION=/disk1/arch MANDATORY'
LOG_ARCHIVE_DEST_2 ='LOCATION=/disk2/arch'
LOG_ARCHIVE_DEST_3 ='LOCATIO=/disk3/arch'
LOG_ARCHIVE_DEST _4 ='LOCATIONs/disk4/arch'
LOG_ARCHIVE _MIN_SUCCEED_DEST = 2
While the database is open, you notice that the destination set by the log_archive_dest_1 parameter is not available. All redo log groups have been used.
What happens at the next log switch?

Answer options

• A. The database instance hangs and the redo log files are not overwritten.
• B. The archived redo log files are written to the fast recovery area until the mandatory destination is made available.
• C. The database instance is shutdown immediately.
• D. The destination set by the log_archive_dest_1 parameter is ignored and the archived redo log files are created in the next two available locations to

Correct answer: D

Explanation

The correct answer is D because when a mandatory destination is unavailable, Oracle allows the archived redo logs to be written to alternative locations as long as the minimum number of succeeding destinations is met. Options A, B, and C are incorrect because they suggest that the process would halt or shut down, which is not the behavior of the database in this scenario.