How can SD-WAN support disaster recovery (DR) strategies?

• A. By enabling rapid failover to secondary underlays or cloud regions, replicating configurations, and enabling quick traffic re-routing to DR sites with minimal downtime
• B. DR strategies are not supported
• C. DR requires manual reconfiguration after outage
• D. DR is handled by local backups only

Answer: (A)

SD-WAN supports disaster recovery by providing automated, policy-driven failover and centralized control over the wide-area network. It continuously monitors link and application health, and when the primary path or site becomes unavailable, traffic can be instantly redirected to secondary underlays or cloud regions with minimal downtime. The architecture also allows replication of configurations and security/routing policies across DR sites, so the transition to a DR location happens smoothly and consistently without manual reconfiguration. Application-aware routing and multi-path capabilities enable rapid rerouting to DR sites, whether they're on-prem, Internet, or cloud, ensuring service continuity during outages.