Publisher and Subscriber – Sharp: NCLEX, Java & Python

Java: Publisher and Subscriber

What happens when you call subscribe() on a stream?

What are the mathematical rules of Reactive Streams?

How would you explain the danger of emitting more data than requested in an interview?

Why does the Publisher in Reactive Streams matter in practice?

How does the Subscriber interact with the Publisher in Reactive Streams?

Why is it important to avoid blocking calls on the event loop in Reactive Streams?

What is backpressure and how does it function in Reactive Streams?

Compare WebFlux and Virtual Threads in terms of concurrency management?

How does backpressure control data flow?

How would you explain a Reactive Stream in an interview?