Explanation:
A DBA needs to copy all affected data files to the standby server or manually apply the changes to the standby database.
Incorrect Answers:
1: A DBA does not need to switch log files on the primary database after using NOLOGGING operations on a primary database.
4: A DBA does not need to make sure the database is the only primary database in the current configuration.
Oracle 8, DBA Certification Exam Guide, Jason S. Couchman, p. 1158
Chapter 24: Oracle8i New Features Topics

---