1. Reactive Streams 2. Advanced Spring 3. Caching (JCache/Spring + Redis? Hazelcast?) 4. JMS (ActiveMQ/RabbitMQ) 5. Kafka 6. Akka 7. Advanced Maven 8. Gradle
The question should be as per sample questions in the attachment. There should be only code and should be only drop-down selector in the code that the user selects the right answer. Each question to have minimum of 3 drop-down with at least 4 options per drop-down.