1st round : 1. Convolution. 2. BIBO stability 3. LTI systems. 4. Fourier Transform . 5. Linked Lists (Insertion, deletion and time complexity) 6. C algorithm for the above.(Pseudo code) 2nd round : 1. DSP floating and fixed point. 2. C file handling 3. Storage classes and qualifiers. 4. Dynamic memory allocation. 5. Nyquist sampling theorem . 6. Aliasing. 7. C data types, their sizes and ranges. 8. FIR and IIR filters. 3rd round : 1. Name some dream companies that you have had in mind . 2. What is the difference between microprocessor and micro controller and DSP? 3. What is the one operation that cannot be performed as efficiently in a microprocessor as done in a DSP? (Hint : Correlate signal processing terms. What's the basic of all filters be it FIR or IIR) 4. Willing to relocate? 5. Description of the type of responsibility that I would be having as an intern .