單項選擇題

Why can setting too low a value for the FAST_START_MTTR_TARGET parameter reduce your overall database performance？（）

A.Data blocks have to be written more frequently by DBWR.
B.Redo blocks have to be written more frequently by LGWR.
C.You need to substantially increase the size of your database buffer cache to hold the additional checkpoint records.
D.You need to substantially increase the size of your redo buffer cache to hold the additional checkpoint records.

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單項選擇題

You are attempting to create an Oracle-Managed Files （OMF） tablespace in a production database with the following statement and receive the following error message：
CREATE TABLESPACE tbsl；
ORA-02199： missing DATAFILE/TEMPFILE clause oerr ora 2199
02199， 00000， “missing DATAFILE/TEMPFILE clause”
Cause： A CREATE TABLESPACE statement has no DATAFILE/TEMPFTLE clause.
Action： specify DATAFILE/TEMPFILE clause.
What is the corrective action to create the OMF based tablespace？（）

A.A
B.B
C.C
D.D

單項選擇題

What type of protection is implemented when the DBA issues the ALTER DATABASE SET STANDBY DATABASE PROTECTED； command？（）

A.The standby database is protected against write operations.
B.The primary database is protected against write operations.
C.The primary database is protected against data loss and data divergence.
D.The standby database is protected against data loss and data divergence.

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Why can setting too low a value for the FAST_START_MTTR_TARGET parameter reduce your overall database performance？（）

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What type of protection is implemented when the DBA issues the ALTER DATABASE SET STANDBY DATABASE PROTECTED； command？（）

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What type of protection is implemented when the DBA issues the ALTER DATABASE SET STANDBY DATABASE PROTECTED； command？（）