Oracle Cloud Infrastructure 2019 Developer Associate — Question 102

Your company has decided to move a few applications to Oracle Cloud Infrastructure (OCI) and you have been asked to design a cloud-based disaster recovery
(DR) solution. One of the requirements is to deploy the DR resources at least 300 miles from the home OCI region and minimize the network latency.
What will be the recommended deployment?

Answer options

• A. Deploy production and DR applications in the same VCN. Create production subnets in one AD, and DR subnets in another AD.
• B. Deploy production and DR applications in two separate VCNs in different availability domains (ADs) within your home region, and then use a VCN remote peering connection for connectivity.
• C. Deploy production and DR applications in two separate VCNs, each in different regions. Connect them using a VCN remote peering connection.
• D. Deploy production and DR applications in two separate virtual cloud networks (VCNs), each in different regions, and then use VCN local peering gateways for connectivity.

Correct answer: B

Explanation

The correct answer is B because deploying the production and DR applications in separate VCNs within different availability domains of the same region allows for effective disaster recovery while maintaining low latency through a VCN remote peering connection. Option A fails to meet the distance requirement, while options C and D involve different regions, which does not align with the requirement to minimize latency as effectively as option B.