Interviewer first ask me tell me about yourself and the second question was totally based on my resume that was you are comfortable with c++ so write a merge sort program he give me an array and tell to sort the array in ascending order . So i was comfortable with C++ so i just write the program. So make sure that whatever you have mentioned in your resume you have a good knowledge about that. And after that he asked me some questions from DS like what is heap Sort and merge sort and then he jumps right into OOPS concepts he asked me about what is polymorphism and abstraction and encapsulation And then he asked me general SQL queries And after that he asked me general Linux commands. And at last he said do you have questions for me so i sad yes and asked question. So at last when interviewer asks you that you have any questions for him so must ask a ques. That was all about my first round TR