Valid 1Z0-053 Dumps shared by ExamDiscuss.com for Helping Passing 1Z0-053 Exam! ExamDiscuss.com now offer the newest 1Z0-053 exam dumps, the ExamDiscuss.com 1Z0-053 exam questions have been updated and answers have been corrected get the newest ExamDiscuss.com 1Z0-053 dumps with Test Engine here:
A database has three online redo log groups with one member each. A redo log member with the status ACTIVE is damages while the database is running. What is the first step you should take to solve this problem?
Correct Answer: A
Explanation/Reference: Explanation: Recovering After Losing All Members of an Online Redo Log Group If a media failure damages all members of an online redo log group, then different scenarios can occur depending on the type of online redo log group affected by the failure and the archiving mode of the database. If the damaged online redo log group is current and active, then it is needed for crash recovery; otherwise, it is not. Recovering After the Loss of an Online Redo Log Group Inactive It is not needed for crash recovery Clear the archived or unarchived group. Active It is needed for crash recovery Attempt to issue a checkpoint and clear the log; if impossible, then you must either use Flashback Database or restore a backup and perform incomplete recovery up to the most recent available redo log. Current It is the redo log that the database is currently writing to Attempt to clear the log; if impossible, then you must either use Flashback Database or restore a backup and perform incomplete recovery up to the most recent available redo log.