1. Bit twiddling hacks like checking number of bits set. 2. Memory management and allocation without malloc in embedded systems. 3. Fencing conditions for memory 4. LTE zadof chu sequence importance and where it's used. 5. Various channels in LTE 5. Merging linked lists 6. questions based on precedence of operators. 7. what purpose to scrambling and interleaving serve? 8. Checking if a number is power of 2. 9. function to pointer, pointer to function and differences. 10. storage classes in C