OCP-1Z0-053-200题-43题-678

QUESTION 43

Which are the two prerequisites before setting up Flashback Data Archive? (Choose two.)

A. Flash recovery area must be defined

B. Undo retention guarantee must be enabled.

C. Database must be running in archivelog mode.

D. Automatic undo management must be enabled.

E. The tablespace in which the Flashback Data Archive is created must have automatic segment space

Management (ASSM).

Answer: DE

同678题：http://blog.csdn.net/rlhua/article/details/14138063

Explanation/Reference:

Section: Flashback Operations & Configuration

http://www.oracle.com/technetwork/database/features/storage/total-recall-whitepaper-171749.pdf?

ssSourceSiteId=ocomen

Oracle White Paper- Oracle Total Recall withOracle Database 11g Release 2, Page 7

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.

http://www.dba-oracle.com/t_11g_new_enabling_fdba.htm

There are a number of restrictions for flashback archives:

- The tablespaces used for a flashback archive must use local extent managementand automatic segment space management.

- The database must use automatic undo management.