Databricks Certified Associate Developer for Apache Spark Free Practice Exam Questions

195 real Databricks Certified Associate Developer for Apache Spark exam questions with answers and AI explanations. Databricks certification prep — page 4 of 20.

1. Question 37: Which of the following operations can be used to return a new DataFrame from DataFrame storesDF without inducing a shuffle?
2. Question 38: The code block shown below contains an error. The code block is intended to return a new 12-partition DataFrame from the 8-partition DataFrame storesDF by indu…
3. Question 39: Which of the following Spark properties is used to configure whether DataFrame partitions that do not meet a minimum size threshold are automatically coalesced…
4. Question 40: Which of the following operations can perform an outer join on two DataFrames?
5. Question 41: The below code block contains a logical error resulting in inefficiency. The code block is intended to efficiently perform a broadcast join of DataFrame stores…
6. Question 42: The code block shown below contains an error. The code block is intended to return a new DataFrame that is the result of a position-wise union between DataFram…
7. Question 43: Which of the following code blocks writes DataFrame storesDF to file path filePath as JSON?
8. Question 44: The code block shown below contains an error. The code block intended to read a parquet at the file path filePath into a DataFrame. Identify the error. Code bl…
9. Question 45: Which of the following DataFrame operations is classified as a wide transformation?
10. Question 46: Which of the following operations can be used to create a new DataFrame that has 12 partitions from an original DataFrame df that has 8 partitions?