Your question is Sticky Sessions in Distributed Systems. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
Describe the advantages and trade-offs of using sticky sessions in a distributed Netflix-scale system.
Discuss how a load balancer can maintain client affinity using a cookie, source IP, or consistent hashing, and compare that design with stateless services backed by shared storage. Address scaling, failure recovery, load distribution, deployments, and multi-region behavior.
Scope: focus on HTTP services and load balancing, not the implementation of Netflix playback protocols.