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 15 of 20.

  1. Question 161: Which of the following code blocks attempts to cache the partitions of DataFrame storesDF only in Spark’s memory?
  2. Question 162: Which of the following operations will always return a new DataFrame with updated partitions from DataFrame storesDF by inducing a shuffle?
  3. Question 164: Which of the following code blocks returns a DataFrame where rows in DataFrame storesDF containing missing values in every column have been dropped?
  4. Question 165: Which of the following Spark properties is used to configure whether DataFrames found to be below a certain size threshold at runtime will be automatically bro…
  5. Question 166: Which of the following describes why garbage collection in Spark is important?
  6. Question 167: Which of the following statements describing a difference between transformations and actions is incorrect?
  7. Question 168: Which of the following code blocks returns a DataFrame containing only the rows from DataFrame storesDF where the value in column sqft is less than or equal to…
  8. Question 170: Which of the following code blocks prints the schema of DataFrame storesDF?
  9. Question 171: The code block shown below should return a new 4-partition DataFrame from the 8-partition DataFrame storesDF without inducing a shuffle. Choose the response th…
  10. Question 172: Which of the following code blocks returns a new DataFrame with the mean of column sqft from DataFrame storesDF in column sqftMean?