ACI Worldwide interview question

Rest API: Comparison between REST & SOAP Different HTTP methods for Rest API Error Codes in REST API Programs: Fibonacci Series Using Recursion, Questions on complexity Common elements of a String or List, complexity, use different data structures DB: SQL: Students & Courses Design table for Students & Courses, Write an SQL query to get all the students that are enrolled to a particular course or vice versa Print the name of all courses enrolled by a Student What primary keys or indexes would you add to optimize query performance? Questions on how to make asynchronous operations in Java? Questions on multithreading