I will answer to that as "yes" we do . Lets revisit the terms which you mentioned above again let me add a bit more details to that .
Azure Data lake Gen2 : This is storage which is more designed to help the big data technology to consume it . Previously we used to write the blob storage and now this , but its just a
storage .
Stream analytics : This is the tool to run analysis on the incoming data , if you ask get all the signals which is coming from IOT device in the last 1 hour , we have the data queries whcih basically
work on some datatime field and gives you the output .
Hadoop , HDinsight and Databricks : There are computation engines and have the map -reduce implementation inside them , if you ask question "Get me the ratio of car which runs on gas vs
diesel in all the countries in the world " , then I think these technology come in to play and process the data in parallel and supplies the output .
These technologies had better security implementation also .
HTH .
Thanks Himanshu