Populus Group interview question

It was just regular technical questions pertaining to the particlar requirement for Full-stack Java web development position. What is Javascript? What is html templating? How do you implement security in a Java web application with Spring? What is the life cycle of a servlet? What are the differences between a Servlet and a Spring Controller? What is the difference between a Set and a List? How do you sort a list of objects in Java? What is Hibernate? How many ways are there to get data from the database using Hibernate? What is the difference between a left join and a right join? What is the difference between an inner join and an outer join? How do you troubleshoot a slow select query? Ho do you troubleshoot performance problems in a Java web application?