State, Security & Middleware Ecosystem – Interview Prep Questions

Q1. A stateful web app runs on two servers behind a load balancer. Users report being logged out when their requests switch between servers. Session data is stored in-memory on each server. Which solution addresses this issue with minimal changes? Enable session affinity (sticky sessions) on the load balancer.
Have the client send periodic heartbeats to keep the session alive.
Increase the session expiration timeout on the servers.
Remove one server from rotation to force all users onto a single node.

Q2. After adding a comment feature, you discover users can include

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