You are designing a highly available web application on OCI. The application needs to be accessible globally with traffic being routed to the nearest…

Requirements: Global access, geo-routing, advanced traffic management, DDoS protection. Load Balancer Options: Regional LB: Single-region, no global routing or advanced policies. NLB: Layer 4, no HTTP-based traffic management or DDoS features. Global LB with Steering Policies: Layer 7, supports geo-routing and policies. Flexible LB: Not a specific OCI service. Assess Fit: A: Lacks global and advanced features; unsuitable. B: No Layer 7 or DDoS protection; incorrect. C: Meets all requirements with geo-routing, steering policies, and WAF integration; best fit. D: Non-existent service; incorrect. Conclusion: Global LB with steering policies is the best solution. The Global Load Balancer with Traffic Management Steering Policies supports global applications. The Oracle Networking Professional study guide explains, "Global Load Balancer enables geo-based routing and advanced traffic policies like A/B testing and weighted distribution, integrating with OCI WAF for DDoS protection" (OCI Networking Documentation, Section: Load Balancing - Traffic Management). This aligns with all specified requirements.
Reference: Oracle Cloud Infrastructure Documentation - Traffic Management.