Intel Corporation Software Developer interview questions

I had an interview with the STTD team at Intel. It was a four round interview for the software+hardware engineer position. The team sort of involves the employee in lab work and software development jobs. they asked me questions on comp architecture, OS, software development and simple circuit analysis, C++. Circuit analysis - With a simple resistor, ammeter and diode - was asked to check if the diode is forward biased Comp architecture - Virtual memory, difference between RAM and ROM, advantages and disadvantages, caches, levels of caches, what is the whole point of so many levels of cache, cache coherency OS - how do process communicate, multithreading and multiprocessing differences C++ - pointers, references, object-oriented concepts

Very professional, good questions