header file based question in C plus plus with solution for tn hindi computer science class 12. important question for class 12 computer science observe the c++ code and write the names of the header file with the essential requirement to run the program and this is very important for board questions on header files for 2 marks and 1 marks questions based on CBSE new examination pattern so prepare for the chapter wise question bank for C plus plus computer science questions for CBSE class 12.