PTC interview questions

Moderate level interview process, C++, JAVA, C, Databases-SQL,MySQl,Oracle -Inheritance, Polymorphism, Object, Class, Abstract Class, Interface, Garbage Collection, Exception handling, nested classes, list, map, linked list -Pointers, Calling by reference, Call by Value, Command line arguments - Logic puzzle and code snippets

4 rounds of interviews before a decision is made so a long process. Questions in the interview were fair and challenging. They try to get a sense of you as a person