Your question is Hybrid Cloud Connectivity With Failover. Take a moment with it on the right.
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Design a hybrid-cloud connectivity solution connecting multi-region public clouds to an on-premises data center with strict redundancy and failover requirements.
Address the target topology, Cisco components such as Cisco Catalyst SD-WAN, Cloud OnRamp, Cisco Secure Firewall, and ThousandEyes where appropriate. Explain routing, traffic engineering, failure detection, automated failover, security boundaries, operational visibility, testing, and recovery procedures. State assumptions explicitly because traffic volumes, cloud providers, regions, and recovery objectives are not specified.