来源:Oracle认证 发布时间:2012-11-12 Oracle认证视频 评论
Q. 1 : What system privilege is required to create a rollback segment ?
1. Create database
2. Create rollback segment
3. Alter database
4. Create segment
KEY:2
Q. 2 : Oracle recommends this number of minimum extents in a rollback segment
1. 0
2. 1
3. 2
4. 3
KEY:3
Q. 3 : Oracle recommends that the following segment size when creating a rollback segment
1. INITIAL > NEXT
2. INITIAL = NEXT
3. INITIAL < NEXT
4. NONE OF THE ABOVE
KEY:2
Q. 4 : The OPTIMAL parameter for a rollback segment should be set
1. large for long-frequently running transactions, small for short transactions.
2. small for long-frequently running transactions, large for small transactions.
3. small for all transactions
4. large for all transactions
KEY:1
Q. 5 : In case of system failure, This type of segment is used to undo the changes
1. Data Segment
2. Temp Segment
3. Redo Segment
4. Rollback Segment
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