Explanation:
To configure a database for ARCHIVELOG mode you need to set initialization parameter LOG_ARCHIVE_DEST to specify where log files will be archived and LOG_ARCHIVE_FORMAT parameter to set the naming convention Oracle will use when automatically generating and naming redo logs.
Incorrect Answers:
1: You cannot specify the size of archived log file: they will have the same size as online redo log files.
3: You cannot specify frequency of redo log files archiving: LOG_CHECKPOINT_INTERVAL and LOG_CHECKPOINT_TIMEOUT parameters for redo logs checkpoints will handle this. But these parameters themselves do not relate with ARCH process directly to consider them as correct answer.
Oracle 8, DBA Certification Exam Guide, Jason S. Couchman, p. 577-583
Chapter 12: Overview of Backup and Recovery

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