Exam Certified Associate Developer for Apache Spark topic 1 question 93 discussion

Correct answer is A. storesDF is smaller and should be broadcasted.

I would go with A as storesDF is smaller and right one to broadcast

А is the correct answer!

A The correct answer is: A. 1. employeesDF 2. broadcast 3. storesDF So the correct code would be: ```scala employeesDF.join(broadcast(storesDF), "storeId") ``` This code will perform a broadcast join of the DataFrame `storesDF` (which is smaller) with the much larger DataFrame `employeesDF` using the key column `storeId`. The `broadcast()` function is used to mark a DataFrame to be broadcast when performing a join operation. The smaller DataFrame `storesDF` is broadcasted to all nodes, where it's joined with the larger DataFrame `employeesDF`.

smaller dataset needs to be broadcasted

the larger dataset has to be the initial and the smaller one should be broadcasted