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KEY:4 : Rollback Segments are used to rollback information that has already been applied to database. During recovery, the database is rolled forward and then backwards to a consistent state.
Q. 6 : This is a valid storage parameter when creating a rollback segment
1. FREELISTS
2. OPTIMAL
3. PARTITION
4. NONE OF THE ABOVE
KEY:2
Q. 7 : Madhu created a couple of private rollback segments. What should he do now to make them online automatically during startup
1. Grant online during startup to the segments
2. Add rollback_segments=(rbs1,rbs2) in parameter file
3. Drop segments and recreate them as protected
4. None of the above
KEY:2
Q. 8 : Which is true regarding rollback segments
1. System Rollback Segment Cannot be put in an offline mode
2. Tablespaces containing rollback segments with active transactions can be put in offline mode
3. All of the above
4. None of the above
KEY:1
Q. 9 : A rollback segment ____
1. writes to the redo logs
2. requires one for each tablespace
3. records changes only after they are committed
4. provides for read consistency
KEY:4
Q. 10 : Which type of segment can record changes for multiple transactions
1. DATA SEGMENT
2. TEMP SEGMENT
3. ROLLBACK
4. NONE OF THE ABOVE
KEY:3
Q. 11 : The type of rollback segment that is created when a tablespace goes offline is
1. PRIVATE
2. PUBLIC
3. DEFFERED
4. PROTECTED
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