Oracle Cloud Infrastructure 2022 Architect Professional — Question 20

Your customer needs to move their on-premises applications to Oracle Cloud Infrastructure (OCI). One of their applications is running on an NGINX server and a 2-node Oracle Real Application Clusters (RAC) database.
What is the most cost-effective mechanism to migrate the customer application to OCI and set up regular automated backups?

Answer options

• A. Launch a compute instance and run an NGINX server to host the application. Deploy Autonomous Database and import the database using Oracle Data Pump.
• B. Launch a compute instance and run an NGINX server to host the application. Deploy a 2-node VM DB Systems with Oracle RAC enabled. Import the on-premises database to OCI VM DB Systems using Oracle Data Pump and then enable automatic backups.
• C. Launch a compute instance for both the NGINX application server and the database server. Attach block volumes on the database server compute instance and enable backup policy to backup the block volumes.
• D. Launch a compute instance and run an NGINX server to host the application. Deploy a 1-node VM DB Systems with Oracle RAC enabled. Import the on-premises database to OCI VM DB Systems using data pump and then enable automatic backups.

Correct answer: B

Explanation

Option B is the most cost-effective solution as it uses a 2-node VM DB Systems with Oracle RAC enabled, which is suitable for high availability. Option A proposes using Autonomous Database, which may not meet the customer's existing RAC requirements. Option C does not utilize Oracle RAC and relies on block volumes, potentially increasing complexity and cost. Option D suggests a 1-node setup, which does not provide the same level of redundancy as a 2-node configuration.