OracleDBA回滾段管理試題

Oracle DBA也是一名管理人員,因此,也同樣要求他在參與戰略發展計劃以及數據庫設計上要有出色的.交際能力。下面是小編整理的關於OracleDBA回滾段管理試題,希望大家認真閱讀!

OracleDBA回滾段管理試題

  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