In a data analytics project, what is the primary responsibility of a data engineer?

What is the main programming language supported by Apache Spark?

In Python, which type of non-linear list always has a common root?

Which feature of Apache Kafka makes it suitable for handling high-throughput data streams?

A manufacturing organization intents to minimize production costs by analyzing real-time data after implementing IoT tools.
Which business driver would be affected if the organization follows this strategy?