Samsung Research America Android Frameworks Engineer interview questions

1. Given an array with +ve and -ve numbers , how will you find the pair with sum close to 0 2. Given a sequence with 1?0?0 how will you get all combination with 0 and 1 , answer 11010 11000 10000 10010 Asked questions involving aidl , fragment, ipc , how to run one activity from other , service , how to make sure a process runs with a certain time interval even though the phone is rebooted .