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oracle.1z0-053: enable Flashback Data Archive

原创 Oracle 作者:hiber987 时间:2015-04-29 22:27:14 0 删除 编辑

QUESTION NO: 43
Which two are the prerequisites to enable Flashback Data Archive? (Choose two.)
A. Database must be running in archivelog mode.
B. Automatic undo management must be enabled.
C. Undo retention guarantee must be enabled.
D. The tablespace on which the Flashback Data Archive is created must be managed with
Automatic Segment Space Management (ASSM).
Answer: B,D
Explanation:
Flashback Data Archive Requirements
1. Flashback Data Archive tablespaces must be managed with automatic segment space management (ASSM).
2. Automatic Undo Management must be enabled.
There are a number of restrictions for flashback archives:
- The tablespaces used for a flashback archive must use local management and automatic segment space management.
- The database must use automatic undo management.

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