Free Online Databricks Databricks-Certified-Associate-Developer-for-Apache-Spark-3.0 Practice Test

Prepare Your Databricks Databricks-Certified-Associate-Developer-for-Apache-Spark-3.0 Exam Questions with Free online Databricks-Certified-Associate-Developer-for-Apache-Spark-3.0 Practice Test. Get Brilliant Databricks Certified Associate Developer for Apache Spark 3.0 Exam Results with Valid Databricks Certified Associate Developer for Apache Spark 3.0 Exam Dumps.

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Total 420 Questions | Updated On: Jun 14, 2024
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Question 1

If we want to create a constant string 1 as a new column ‘new_column’ in the dataframe df, which code block should we select ? 


Answer: A
Question 2

Which of the following code blocks immediately removes the previously cached DataFrame transactionsDf from memory and disk? 


Answer: B
Question 3

Given the code block down below, a database test containing nulls, identify the error

1. def my_udf(s):
2. If s is not null:
3. return len(s)
4.
5. spark.udf.register("strlen", my_udf)
6. spark.sql("select s from test where s is not null and strlen(s) > 1")


Answer: A
Question 4

Which of the following code blocks adds a column predErrorSqrt to DataFrame transactionsDf that is the square root of column predError? 


Answer: D
Question 5

Which of the following code blocks reads from a csv file where values are separated with ‘;’ ?


Answer: C
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Total 420 Questions | Updated On: Jun 14, 2024
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