Pergunta de entrevista da empresa Mantra Softech

1) Some basic question like Tell me about yourself, etc. 2) About the projects that I have worked on. 3) Different protocols like: what is a difference between RS-232 & RS-485? There ranges, application. How many types of Registers are there in Modbus. About I2C protocol. How does the data-packet (or Frame) structure looks like in I2C? Frame structure of I2C for Writing to a Device. Frame structure of I2C for Reading from a Device. 4) What is Volatile Keyword in C. 5) Where will be the static variable in C be saved (in which section of memory)?