1. Implement a basic timer, implement basic hash table. 2. Some data structure related question. 3. Basically in all the interview round they asked to write some codes as well as asked questions related to LTE message flow. 4. There were hardly any question other than technical question. 5. In director round, he asked some more LTE call flow and some question like "What was your most difficult problem you faced and how did you fare with it?" 6. Prepare well about all the project you worked on.