Hi Santosh Kumar Singh,
Which courses you take will depend on which part of the data pipeline you want to work with. I recommend you take ESS 100 – Introduction to Big Data to learn more about the data pipeline. Then, take ESS 101 – Apache Hadoop Essentials to learn more about some of the tools used in big data. Depending on which tools you want to use, you might want to take DEV 350 - MapR Streams Essentials, DEV 360 - Apache Spark Essentials , or DA 410 - Apache Drill Essentials.
You should also check out some of these other threads on the MapR Community about becoming a data scientist:
I hope this helps! Happy learning!
Retrieving data ...