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 12 of 20.

  1. Question 127: The code block shown below should write DataFrame storesDF to file path filePath as parquet and partition by values in column division. Choose the response tha…
  2. Question 129: Which of the following code blocks creates and registers a SQL UDF named "ASSESS_PERFORMANCE" using the Scala function assessPerformance() and applies it to co…
  3. Question 130: The code block shown below should return a new 12-partition DataFrame from DataFrame storesDF. Choose the response that correctly fills in the numbered blanks…
  4. Question 131: Which of the following code blocks returns a new Data Frame from DataFrame storesDF with no duplicate rows?
  5. Question 132: Which of the following types of processes induces a stage boundary?
  6. Question 133: Which of the following identifies multiple narrow operations that are executed in sequence?
  7. Question 134: Spark's execution/deployment mode determines where the driver and executors are physically located when a Spark application is run. Which of the following Spar…
  8. Question 135: Which of the following will cause a Spark job to fail?
  9. Question 136: Which of the following best describes the similarities and differences between the MEMORY_ONLY storage level and the MEMORY_AND_DISK storage level?
  10. Question 137: Which of the following code blocks returns a 15 percent sample of rows from DataFrame storesDF without replacement?