Siemens Systems Engineer interview questions

The hiring process was done in four rounds: Round 1 (Programming Aptitude) - This was completely based on C++, easy enough. Knowledge of other languages won't be enough as the questions were very specific. Round 2 (General Aptitude) - 3 sections consisting of 15 questions each (Numerical, Verbal and Logical). All sections were quite challenging given the limited time (time limit for every question). The numerical section required some knowledge of statistics. Round 3 (Technical Interview) - Tests your basic knowledge of computer science concepts (be prepared to write moderate algorithms). Topics consists mainly OOPs concepts, UML, SDLC, Puzzles. The interview went on for 50 mins(approx.) Round 4 (HR interview) - The HR asked about projects, other interests, family background. He specifically inquired about my plans for further studies. He also asked how I viewed the tech industry and current challenges. Went on for 25 mins(approx.)