Output operations on DStreams pushes the DStream's data to external systems like a database or a file system. Following are the key operations that can be performed on DStreams.

saveAsTextFiles() - Saves the DStream's data as text file.

saveAsObjectFiles() - Saves the DStreams data as serialized Java objects.

saveAsHadoopFiles() - Saves the DStream's data as Hadoop files.

foreachRDD() - A generic output operator that applies a function, func, to each RDD generated from the DStream.