Questions were related to Wireless communications and Programming. Wireless Communications--- Shannon's rule, SNR, Bandwidth, Throughput, Difference between GSM, CDMA and LTE, Convolution concepts, call flow in LTE, L1-L2 layers, Modulation schemes. Programming--- C++, Python, bit manipulation, linked list, multiple inheritance, find out missing number in incoming random integers, test case plan, big picture for test cases etc.