单选题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?()AALTER DATABASE ENABLE BLOCK CHANGE TRACKINGBALTER SYSTEM ENABLE BLOCK CHANGE TRACKING USING FILE CALTER DATABASE ENABLE BLOCK CHANGE TRACKING USING FILE DALTER SYSTEM ENABLE BLOCK CHANGE TRACKING

单选题
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


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单选题You have an Automatic Storage Management (ASM) instance managing the database files of your production database. The database contains ASM files and non-ASM files. Using Recovery Manager (RMAN), you migrate the complete production database to use the ASM instance. Which statement is true? ()A RMAN would relocate all the data files to an ASM disk group and other files to an operating system location, defined using Oracle Managed Files (OMF).B RMAN would relocate the ASM files to an ASM disk group and the non-ASM files to an operating system location, defined using OMFC RMAN would relocate all the database files to an ASM disk group.D RMAN would change the file definitions in the control file to use the ASM but would not relocate the database files physically.

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单选题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 TRACKINGB ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING USING FILE C ALTER DATABASE ENABLE BLOCK CHANGE TRACKING USING FILE D ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING