Oracle 11G OCP 1Z0-053 59

（59）You have not configured Oracle Managed Files（OMF）in your database.

You do not want to scan the entire datafile every time an incremental backup is performed.

You decide to enable the block change tracking feature.

Which statement should you use to enable the block change tracking feature?

A. ALTER DATABASE ENABLE BLOCK CHANGE TRACKING;

B. ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING USING FILE;

C. ALTER DATABASE ENABLE BLOCK CHANGE TRACKING USING FILE;

D. ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING;

答案：（C）

解析：

A（X），因為沒有開啟OMF.

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