Oracle Cloud Infrastructure 2023 AI Foundations Associate — Question 9

Which migration method gives you the least down time?

Answer options

• A. Transportable Tablespaces
• B. Data Pump
• C. RMAN point-in-time recovery
• D. Data Guard

Correct answer: D

Explanation

Data Guard is the correct answer because it enables near-continuous availability by allowing the primary database to be operational while a standby database is kept in sync. The other options, while useful for migration, typically involve more downtime, such as the need for taking backups or performing data exports/imports, which can interrupt service.