Adobe interview questions

Very basic programming questions. They see your thought process, exact answer is not expected. 1. 2nd largest numbee in an unsorted array 2. Reverse a string ( 1 word ) 3. Reverse a a sentence. 1 puzzle 3 jars necessarily labelled wrong containing red, blue and a mixture od red n Blue balls. Correct the labelling in least moves. Answer -2 Operating systems concepts. Mainly memory management concepts are a must. They asked questions on it.