6. Multi-Cloud Architecture: Trade-offs, Disaster Recovery & Data Sync | System Design Interview

Should you design for multi-cloud, or is it an over-engineering trap? In this video, we break down Multi-Cloud Architecture for Senior System Design and Solutions Architect interviews. We examine why top enterprises adopt multi-cloud, how to handle inter-cloud networking and data replication, and the hidden trade-offs you must justify in an interview. 📌 What We Cover: 00:00 - Introduction: Why Consider Multi-Cloud? 00:45 - Key Drivers: Vendor Lock-in, Compliance & Disaster Recovery 02:15 - Core Patterns: Active-Passive DR vs. Active-Active Hybrid 04:10 - Solving Cross-Cloud Networking (Direct Connect, ExpressRoute, VPN Mesh) 05:55 - Cross-Cloud Data Synchronization & Egress Cost Pitfalls 07:30 - Kubernetes & Cloud-Agnostic Abstractions (Terraform, Istio) 08:45 - Senior Architect Interview Summary: Evaluating the Trade-offs 💡 Key Interview Trade-offs Discussed: Operational complexity vs. outage resilience Network latency & data egress bandwidth costs Lowest common denominator trap vs. leveraging proprietary cloud services Unified IAM, compliance, and cross-cloud observability Playlist: System Design Interview - Scenario Based Questions (Senior Engineer) #SystemDesign #CloudArchitecture #MultiCloud #DevOps #SoftwareEngineering #InterviewPreparation #AWS #Azure #GCP