Efftronics Systems Engineer interview questions

String reverse program?

In technical interview they asked about physics, TV, EDC, network theorems , digital electronics, micro processor. HR interview is almost a formality type and very simple questions were asked. At the company the question papers are based on 8085 or MC coding, digital electronics, quantitative aptitude. In digital electronics we were asked to design a bank locker key system with several specifications that were given.