Single round interview - first they asked some basic questions based on project that i have worked on then some conceptual questions on etl , iics and sql and then some hands on question on sql ,asked to write down queries for some scenarios

Round 1 interview. Took only 16 mins exactly. Asked me different theoretical questions on spark optimisations sql and basics python like join merge and lambda functions. Sql was basics groupby and window functions. Spark coalesce repartition, broadcast hash join