National Instruments General Intern Interview Questions
& Process

The first round was descriptive questions only, no MCQs. There were 9 questions in total and 90 minutes to complete them. The topics covered were time complexity, recursion, permutation and combinations, finding the output for given code snippets, and the last question was to design a simple circuit using NAND gates to satisfy a given truth table. Candidates were shortlisted for the second round based on their scores. The second round was completely coding, with 2 questions to be solved in 3 hours, using only C or C++. Scores were awarded based on the number of test cases passed. The third round involved adding the scores from the first and second rounds to select candidates. The third round itself was the final round, a mix of technical and HR. More questions were asked on Data Structures and algorithms, such as tree traversal and printing elements at a particular level. After all interviews were done, results were announced.

It started with an aptitude test, which had general science and aptitude problems. Then we had a group discussion with 10 people. The topics for three groups were Renewable sources of Energy and Virat Kohli Vs M.S Dhoni. After that, there was a technical presentation where we had to speak for 3 minutes on a topic chosen from four options. Lastly, there was a personal interview.

The interview is split into 3 parts: first, you'll introduce yourself. Second, you'll show your initiative by sharing examples from your own life. Third, there will be technical questions covering the voltage divider rule, the functions of inductors and capacitors, op-amp characteristics, and your programming skills.