Which of the following is a prerequisite for running DBMS_TDB.CHECK_DB to a successful
completion?
A.
The database must be in read-write mode.
B.
The database must have no external files.
C.
The database must open in read-only mode.
D.
The database must be mounted but not opened.
http://docs.oracle.com/cd/B19306_01/appdev.102/b14258/d_tdb.htm#BDCCBGDD
True, but the version of Oracle used in this test is 11.2.0.1 not 10.2
C is correct:
https://docs.oracle.com/cd/B28359_01/appdev.111/b28419/d_tdb.htm
In many cases, Oracle supports transporting databases between platforms which have the same endian format. However, even when the endian formats are the same, a database must undergo a conversion process to move from one platform to another. There are also preconditions required for the process of transporting a database, such as having the database to be transported OPEN READ-ONLY.
The DBMS_TDB package serves two purposes:
Confirming that Oracle supports transporting a database from a given source platform to a given target platform
Determining whether a database to be transported has been properly prepared for transport, and if not, identifying the condition that prevents database transport