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Load Balancing and Traffic Management
- Authors
- Name
- Lucian Oprea
- @LucianDSA_
00:30:00
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Load Balancer Layers and Algorithms
⏷ 1. What is the difference between Layer 4 and Layer 7 load balancing?
⏷ 2. How do you choose between round robin, least connections, weighted routing, and hashing?
⏷ 3. Why can traffic remain uneven even when many healthy backends are available?
Health, Failover, and Connection Lifecycle
⏷ 4. How should load balancer health checks be designed?
⏷ 5. What happens during failover, and how do you avoid flapping and cascading failure?
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⏷ 6. How do you remove or deploy a backend without dropping active traffic?
Affinity, Proxies, and Service Discovery
⏷ 7. When should you use sticky sessions, and why is stateless routing usually preferred?
⏷ 8. How do a reverse proxy, load balancer, API gateway, and service mesh differ?
⏷ 9. How do client-side and server-side service discovery differ?
Global Routing, Scaling, and Releases
⏷ 10. How do connection pooling, HTTP/2, and long-lived connections affect load balancing?
⏷ 11. How should global traffic be routed across regions?
⏷ 12. How should load balancing and autoscaling work together?
⏷ 13. How do weighted routing, canary releases, and blue-green deployments work?
Overload Protection and Diagnosis
⏷ 14. How should a load balancer protect backends during overload?
⏷ 15. How would you diagnose high latency or errors behind a load balancer?
Load Balancing Essentials
⏷ 16. What problem does a load balancer solve?
⏷ 17. What is a backend pool?
⏷ 18. How can DNS distribute traffic?
⏷ 19. What is the difference between readiness and liveness for traffic routing?
⏷ 20. What is TLS termination at a load balancer?
⏷ 21. What is connection draining?
⏷ 22. Why should load-balanced backends be stateless when possible?
Traffic Control in Production
⏷ 23. How can consistent hashing improve load-balancer affinity?
⏷ 24. Where should retries happen in a proxy chain?
⏷ 25. How should forwarded client information be handled?
⏷ 26. What is slow start for a new backend?
Resilient Traffic Architecture
⏷ 27. How would you design a multi-tier load-balancing topology?
⏷ 28. How should the traffic edge handle DDoS and abusive traffic?
⏷ 29. What is adaptive load balancing?
⏷ 30. How do you preserve capacity during a zone failure?