Question 1 of 30
A company is planning to deploy a multi-tier web application on Oracle Cloud Infrastructure. They need to design a Virtual Cloud Network (VCN) that includes a public subnet for web servers, a private subnet for application servers, and another private subnet for database servers. Which design principle should they prioritize to ensure secure and efficient communication between these tiers while minimizing exposure to the public internet?
Implement security lists and route tables that restrict access to the private subnets while allowing necessary traffic between them.
Use a single public subnet for all application tiers to simplify the network architecture and reduce management overhead.
Configure all servers in the same subnet to facilitate easier communication and reduce latency between application components.
Enable public IP addresses for all servers to ensure they can be accessed directly from the internet for troubleshooting purposes.

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