Qualcomm Internship interview questions

Questions about: -Digital: Basic logic gates design, multiplicator, low power design, ring oscillator -C language: reverse string -Analog: filter, current mirror

· Talk me about your bachelor’s degree thesis · Synopsys: - why did you use it? - How did you implement your project inside? - Which were the constraints you used? How do you know that your freq., power and area are right? · Assembly: - where did you use it? - How many stages does MIPS have? · C language: - They made me see two different codes: one was the passing by reference and by value to a function; one was a code related to a reverse of a string. I had to comment them. - How is the memory of a computer structured and where the different types of variable are saved? - Stack memry is FIFO OR LIFO? · Analog: - He made me see an R-C circuit and asked me how I would have implemented that circuit in spice. He asked me the syntax of that and how many types of simulation spice is able to do. · Digital: - If I have two different clock domains, How Can I synchronize them? - How does the synchronizer work? - How many types of synchronizer exists? - If the setup time of a D-FF is 6 ns and its propagation delay is 10 ns, what is the max freq. to sample in the circuit? - Draw a NOR and NAND in C-MOS logic. - If you have only 1 D-flip flop, how can you build a clock 2 divider? · Linux commands: - grep, find, chmod, types of permissions. How do you change permission of a file? And what about a whole directory? - What are regular expression? · Processor architectures: - How many types of process architecture I know? RISC and CISC. - Which is better for me and why?