PTC interview questions

i got there at 9 AM. I had my first interview for the PTC internship today around 3 PM. It mainly focused on C++—they asked me to write code on linked lists, which I managed to do properly. They also gave me two puzzles (4-5 minutes time for each) : I could solve one but not the other. They didn’t ask anything about SQL, DBMS, OOP, or even about my project. After the interview, they mentioned that the C++ role is not possible and informed me about available roles in Java QA. They asked if I would be interested in those, but it was not possible for me. because if interested they told me come again tomorrow and i cant prepare for those roles in one night as i am not prepared for java since I cleared the test in c++ and was prepared for that and python.

There are two technical rounds .... In first round interviewer asked about some basic concepts of releated technology... also he checked algorithm knowledge,problem slolving skills ..interviewer given some programming snippit