SAP interview question

Technical Round 1 1. Gradient Descent Algorithm (ML) 2. Which algorithm you like most ? I told Linear Regression? 3. What is Hyperparameter in Linear Regression 4. What are Neural networks and hyperparameter in it -- Switched to Java as I have it in my resume -- 1. What is Abstract Class 2. Screen share and I wrote code for String Anagram and Parentheses Count in a given String 3. He gave basic 3 - 4 SQL Queries 4. One Logical Question of 3 bulbs in a room 5. What is DNS in CN 6. Given 2 Trees, how do we check whether we they both have the same structure or not. Technical Round 2 1. Self Intro 2. Projects 3. My Rating Scale in Java and Problem Solving 4. He gave me a leetcode question link and told to solve it.. 5. Gave 2 Java Inheritance codes and told to find the errrors~ 6. Gave 2 SQL Queries and told to find the Errors 7. What is Method overloading and Overriding 8. Abstract Class V/s Interface 9. Lambda Functions in Java 10. Design Patterns in any Language 11. Final, Finally , Finalize in Java 12. String, StringBuilder, StringBuffer in Java 13. Creating Object Using Final