Is Data Science Diploma useful for getting good job ?

Yes, Data science is a broad term.
Data science used to keep track of how large data applications are processed and stored. It can also be utilised to solve issues such as graph and network analysis, search behaviour, fraud detection, and so on.
One must be appropriately trained in Data Science to handle and analyse enormously huge datasets utilising cutting-edge open source tools and complex data analysis methods.
Data Science Training provides you with certification in 'in-demand' Big Data Technologies.
The increased demand for Big Data skills and technologies necessitates Data Science training. It provides data management technologies such as Hadoop, R, Flume, Sqoop, Machine Learning, Mahout, and others to professionals. Knowledge and experience in the abilities is a valuable asset for a more successful and competitive profession. It's a good option to go with.

There are n no. of jobs and careers after diploma in Data Science.
You can become data scientist, data architect, data adminstrator, data mining engineer, data analyst, etc.

For more information, visit-
https://www.careers360.com/courses/data-science-course#:~:text=Careers%20in%20Data%20Science&text=After%20completion%20of%20these%20courses,%2C%20Consultancies%2C%20and%20Energy%20sectors.

Wish you good luck.