Oracle Cloud Infrastructure 2020 Architect Associate — Question 42

You are designing a networking infrastructure in multiple Oracle Cloud Infrastructure regions and require connectivity between workloads in each region. You have created a dynamic routing gateway (DRG) and a remote peering connection. However, your workloads are unable to communicate with each other.
What are two reasons for this? (Choose two.)

Answer options

• A. A local peering gateway needs to be created in each VCN with a default route rule added in the route table forwarding the traffic to the local peering gateway.
• B. The route table associated with subnets in each VCN do not have a route rule defined to forward the traffic to their respective DRGs.
• C. Identity and Access Management (IAM) policies have not been defined to allow connectivity across the two VCNs in different regions.
• D. The security lists associated with subnets in each virtual cloud network (VCN) do not have the appropriate ingress rules.
• E. An internet gateway needs to be created in each VCN with a default route rule added in the route table forwarding the traffic to the internet gateway

Correct answer: B, D

Explanation

The correct answer is B and D because the route tables must include rules to direct traffic to the DRGs for successful communication, and the security lists must have appropriate ingress rules to allow incoming traffic. Options A, C, and E are incorrect as they do not directly address the immediate connectivity issues between the VCNs in this scenario.