Screen : count words repetition + DFS type
Coding-1 : buffered file + follow ups (can be found in others DD posts)
Coding-2 : parse query L, Q and show matching q in list of logs (can be found in others DD posts)
Design : streaming service
Overall : reject (did not code fast to handle most of the follow ups), coding seems easy, but one shall code fasts to be able to answer many of the follow ups that are expected