Amadeus Software Development Engineer interview questions

Amadeus came to our college for campus hiring process. There were 2 interview rounds, the technical and the HR. Tech- It started with a formal introduction. Then explaination of the tech stacks used in the project. Then some subject oriented questions of CN, DBMS, OS. Then the concept of OOPs, a code to implement multilevel inheritance, overloading and overriding. Then some Linked List & Array List conceptual question. Code to find the intersection of 2 nodes of a Linked List. Then SQL queries. (A little brush up on Trees and Graphs is suggested). This was the overall Technical Interview experience and I must say my interviewer was such a humble man, so much supportive and generous, that it helped me a lot the clear this round. HR- Some basic personality based questions, then 'why do you want to join Amadeus?'. HR questions were generally to test your dedication toward the company. I was overall a very good experience and I was selected as an Intern.