Which three statements are true regarding the use of th…

Which three statements are true regarding the use of the Database Migration Assistant for Unicode (DMU)?

A.
A DBA can check specific tables with the DMU

B.
The database to be migrated must be opened read-only.

C.
The release of the database to be converted can be any release since 9.2.0.8.

D.
The DMU can report columns that are too long in the converted characterset.

E.
The DMU can report columns that are not represented in the converted characterset.

Explanation:
A: In certain situations, you may want to exclude selected columns or tables from scanning or conversion steps
of the migration process.
D: Exceed column limit
The cell data will not fit into a column after conversion.
E: Need conversion
The cell data needs to be converted, because its binary representation in the target character set is different
than the representation in the current character set, but neither length limit issues nor invalid representation
issues have been found.
* Oracle Database Migration Assistant for Unicode (DMU) is a unique next-generation migration tool providing
an end-to-end solution for migrating your databases from legacy encodings to Unicode.
Incorrect:
Not C: The release of Oracle Database must be 10.2.0.4, 10.2.0.5, 11.1.0.7, 11.2.0.1, or later.