There has never been a time when technology has been so advanced in our world. We are constantly being bombarded by technology in every aspect of our lives. There has been a tremendous increase in data in recent decades due to the widespread use of mobile phones, social networks, streaming video, and IoT (Internet of Things).

Big Data has become a critical component of any company's decision-making process and a means of gaining an advantage over the competition. Therefore, Apache Spark and Cassandra are in high demand as Big Data technologies. In order to get the most out of the data generated by the company, companies are looking for professionals who are skilled in using them.

When it comes to large amounts of data that cannot be analyzed using traditional methods, the term "big data" is used. An organization's raw material for running analytics and extracting insights that can help them craft better business strategies is often big data. It's more than just a byproduct of the technological processes and applications that have led to it. In today's world, data is the most valuable asset.