Explanation:
There are two parameters need to be defined for ARCHIVELOG mode: LOG_ARCHIVE_DEST and LOG_ARCHIVE_FORMAT.
Incorrect Answers:
1: There is no LOG_ARCHIVE_SIZE parameter in Oracle.
2: There is no ARCHIVELOG_MODE parameter in Oracle.
5: There is no LOG_ARCHIVE_INTERVAL parameter in Oracle.
Oracle 8, DBA Certification Exam Guide, Jason S. Couchman, p. 577-585
Chapter 12: Overview of Backup and Recovery

---