You are the team leader and while working on the project, one of your team members is confused about which command to invoke to view the list of active streams? What will you advise him?

Answer options:

A.spark.view.active
B.spark.view.activeStreams
C.spark.streams.show
D.spark.streams.active

Correct Answer: D 
Invoke the command spark.streams.active to see the list of active streams.
Option A is incorrect. spark.view.active is not the right command.
Option B is incorrect. spark.view.activeStreams is not a valid command.
Option C is incorrect. Invoking spark.streams.show won`t help in getting the list of active streams.
Option D is correct. spark.streams.active should be invoked to see the list of active streams.
Reference: 
To know more about structured streaming programming, please visit the below-given link: 

https://spark.apache.org/docs/latest/structured-streaming-programming-guide.html