Oracle Cloud Infrastructure 2022 Architect Professional — Question 25

You are designing the network infrastructure for two application servers: appserver-1 and appserver-2 running in two different subnets inside the same Virtual Cloud Network (VCN) in Oracle Cloud Infrastructure (OCI). You have a requirement where your end users will access appserver-1 from the internet and appserver-2 from the on-premises network. The on-premises network is connected to your VCN over a FastConnect virtual circuit.
How should you design your routing configuration to meet these requirements?

Answer options

• A. Configure a single routing table (Route Table-1) that has two sets of rules: one that has route to internet via the Internet Gateway and another that propagates specific routes for the on-premise network via Dynamic Routing Gateway (DRG). Associate the routing table with the VCN.
• B. Configure two routing tables: Route Table-1 that has a route to internet via the Internet gateway. Associate this route table to the subnet containing appserver-1. Route Table-2 that propagate specific routes for the on-premises network via the Dynamic Routing Gateway (DRG). Associate this route table to subnet containing appserver-2.
• C. Configure a single routing table (Route Table-1) that has two sets of rules. One that has route to internet via the Internet Gateway and another that propagates specific routes for the on-premise network via the Dynamic Routing Gateway. Associate the routing table with all the VCN subnets.
• D. Configure two routing tables (Route Table-1 & Route Table-2) that have rule to route all traffic via the Dynamic Routing Gateway (DRG). Associate the two routing tables with all the VCN subnets.

Correct answer: B

Explanation

The correct answer is B because it effectively separates the routing needs for appserver-1 and appserver-2 while ensuring proper access for both the internet and the on-premises network. Option A does not specify subnet association correctly, C overcomplicates the setup with a single table for both routes, and D incorrectly routes all traffic through the DRG, which does not meet the requirements.