Pregunta de entrevista de TechTree IT Systems

1. Tell me about yourself. 2. What is Query? 3. What is multi-Threading in Spring Boot? 4. Program: find the longest prefix from the string array String str = { 'flower', 'fly', 'flew '} 5. What annotation is used in an exception? 6.I want to upload multiple files, and I got an error. How can you handle?