Databricks Certified Associate Developer for Apache Spark 3.0 Exam
Last Update Oct 13, 2024
Total Questions : 180
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Last Update Oct 13, 2024
Total Questions : 180
Last Update Oct 13, 2024
Total Questions : 180
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Which of the following is a problem with using accumulators?
Which of the following code blocks returns a DataFrame that has all columns of DataFrame transactionsDf and an additional column predErrorSquared which is the squared value of column
predError in DataFrame transactionsDf?
The code block displayed below contains an error. The code block should arrange the rows of DataFrame transactionsDf using information from two columns in an ordered fashion, arranging first by
column value, showing smaller numbers at the top and greater numbers at the bottom, and then by column predError, for which all values should be arranged in the inverse way of the order of items
in column value. Find the error.
Code block:
transactionsDf.orderBy('value', asc_nulls_first(col('predError')))