How does MEF SD-WAN support multi-cloud connectivity?

• A. It only uses VPNs to connect to on-prem networks.
• B. It requires cloud provider to manage the underlay networking.
• C. It enables direct or optimized paths from branches to cloud providers, with policy-driven routing, encryption, and appropriate security controls for cloud access.
• D. It uses static routing for all cloud access.

Answer: (C)

MEF SD-WAN enables direct or optimized connections from branches to cloud providers, using policy-driven routing, encryption, and security controls tailored for cloud access. This means traffic can be steered to the most appropriate cloud region or provider without forcing everything through a central data center, improving performance and reliability across multiple clouds. The overlay network (the SD-WAN) handles the path selection based on application requirements, SLAs, and network conditions, while encryption and security controls protect data in transit to the cloud.

This approach contrasts with relying solely on VPNs to reach on-prem networks, which misses the direct-to-cloud capability. It also doesn’t depend on cloud providers to manage the network underlay, since MEF SD-WAN operators control the underlay and apply consistent, centralized policies. Finally, it moves away from static routing to dynamic, policy-driven routing that adapts to traffic types and network conditions, which is essential for robust multi-cloud connectivity.