1Z0-1124-25 practice question 25 of 25

A large financial institution is migrating its on-premises trading platform to OCI. The platform requires low latency and high bandwidth connectivity…

A large financial institution is migrating its on-premises trading platform to OCI. The platform requires low latency and high bandwidth connectivity to the on-premises data center. You have established an Oracle Cloud Infrastructure FastConnect circuit. You now need to connect multiple VCNs in different regions to the on-premises data center via this FastConnect circuit, optimizing for cost and management overhead. Which DRG configuration would be the most efficient and recommended approach?

Answer options

A: Create a separate DRG in each region and attach each VCN to its regional DRG. Then, create a separate FastConnect attachment to each regional DRG. Finally, configure static routes on each DRG to direct traffic appropriately.

B: Create a single DRG in one region and attach all VCNs in all regions to this single DRG using remote peering connections. Attach the FastConnect circuit to this single DRG. Configure static routes on the DRG to direct traffic to the appropriate VCNs.

C: Create a single DRG in one region. Attach all VCNs in all regions to this single DRG using DRG attachments with remote peering. Attach the FastConnect circuit to the single DRG. Correct answer

D: Create a single DRG in one region and attach all VCNs in all regions to this single DRG using local peering gateways (LPGs). Attach the FastConnect circuit to this single DRG. Configure static routes on the DRG to direct traffic to the appropriate VCNs.

Correct Answer:

C. Create a single DRG in one region. Attach all VCNs in all regions to this single DRG using DRG attachments with remote peering. Attach the FastConnect circuit to the single DRG.

Explanation

Requirements: Low latency, high bandwidth, multi-region VCNs via one FastConnect, minimal cost/overhead. DRG Strategy: Multiple DRGs: Increases cost and complexity. Single DRG: Centralizes management, reduces FastConnect attachments. Evaluate Options: A: Multiple DRGs and FastConnects; costly and complex; incorrect. B: Remote peering connections imply RPC, not standard DRG attachments; less precise. C: Single DRG with remote peering attachments; efficient and correct terminology; optimal. D: LPGs are intra-region, not cross-region; incorrect. Conclusion: Single DRG with remote peering attachments is most efficient. A single DRG optimizes multi-region setups. The Oracle Networking Professional study guide notes, "For connecting multiple VCNs across regions to a single FastConnect, use one DRG with remote peering attachments to minimize cost and management overhead" (OCI Networking Documentation, Section: DRG with FastConnect). Option C aligns with OCI’s recommended architecture.
Reference: Oracle Cloud Infrastructure Documentation - Dynamic Routing Gateway.

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