You are tasked with migrating a critical, latency-sensitive application from Azure to OCI.

Requirements: Low latency, high security with encryption for migration.

Option A: VPN with IPSec offers encryption but has higher latency over public internet—less optimal.

Option B: ExpressRoute and FastConnect provide a private, low-latency link; TLS adds end-to-end encryption—correct and best combination.

Option C: Data Factory with HTTPS is encrypted but slow and not real-time—incorrect.

Option D: VPN with Load Balancer SSL termination breaks end-to-end encryption—incorrect.

Conclusion: Option B balances performance and security.

Oracle notes:

"For latency-sensitive migrations, use FastConnect with ExpressRoute via colocation, enhanced by TLS for secure, high-performance data transfer.”This supports Option B. Reference:Multicloud Connectivity - Oracle Help Center(docs.oracle.com/en-us/iaas/Content/Network/Concepts/multicloud.htm).