• Is event-driven programming possible only with some programming languages?
• What are the differences between reactive programming and reactive systems?
• What is an observable?
• What is an observer?
• Are observables pull-based or push-based?
• What makes reactivity diagrams different from activity diagrams?
• How do you create observable emitting integers from 0 to 10,000?
• How do you create an observable from another observable where all items are multiplied by 3?