National Instruments

This internship is from January to June. It consists of 3 rounds. It was an on-campus placement. 1st round It was an online assessment test. In this round, 20 fundamental MCQ questions. 20 Quantitative Aptitude questions. 1 fundamental DSA question. 2nd round It was a face-to-face technical interview on campus. In this, he asked me some questions like: First, he asked me to introduce myself. Then he asked me to explain my project. Then he asked me two DSA questions which were Implement two Stacks in an Array and Number of subarrays having a sum exactly equal to k . Then he asked me What Polymorphism . Then he asked me the Difference between Compile-time and Run-time Polymorphism . What is Abstraction ? Difference between SQL and NoSQL . Difference Between Constructor and Destructor Then he told me to make three classes like A, B, and C where A is the parent class of the B class and B class is the parent class of the C class, Now tell me in which order constructor and destructor are executed.