The database performance would be enhanced.
The redo log files would be get filled more frequently.
The overall database performance would be degraded.
The mean time to recover (MTTR) would be increased.
第1题:
You are working on the 24X7 database with high transaction volume, to ensure faster instance recovery on your database you set the FAST_START_MTTR_TARGET initialization parameter to a very low value. What effect it will have on the database?()
第2题:
You are maintaining your OLTP database in Oracle10g. You are performing the Flashback Transaction Query to find the undo SQL statements that can be used to undo the changes made to the database in the specific time period. Which pseudocolumn will you use to perform the Flashback Transaction Query?()
第3题:
You want to use the Flashback Transaction Query feature to identify all the changes made to your database within a specific time period. What is a prerequisite for using the Flashback Transaction Query feature?()
第4题:
You are working on an Oracle Database 10g database. For which purposes would you use the Flashback Transaction Query feature? ()
第5题:
In which two cases would you perform only consistent backup?()
第6题:
You are working as a DBA at NetFx Corporation. You discover that the SCOTT schema is deleted by mistake. You decide to flash the database back to the time when the schema existed. Which view will you query to determine the estimated size of the flashback data that you require for your current target retention?()
第7题:
You are working on a 24x7 (available 24 hours per day, 7 days per week) production database. An operating system (OS) user deletes the alert log file accidentally. Which statement in this scenario is true?()
第8题:
You are in the middle of a transaction updating a very important table. The machine on which a database wasrunning reboots because of power outage. This caused a database instance failure. Which statement is true inthis situation()
第9题:
In the absence of shared storage between cluster nodes, which two actions can you take to configure a High Availability architecture?()
第10题:
You work as a database administrator at Certkiller .com. You are working in an online transaction processing (OLTP) environment. You realize that the salary for an employee, John, has been accidentally modified in the EMPLOYEEStable. Two days ago, the data was in the correct state. Flashback logs generated during last two days are available in the flash recovery area. Which option would you choose to bring the data to the correct state while ensuring that no other data in the same table is affected?()