Apache spark -Joins (02/08/2023)
Quiz by Anitha PSGRKCW
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10 questions
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- Q1Which join operation in Apache Spark enables us to combine two DataFrames based on a common column or key?groupByKeyjoinflatMapunion30s
- Q2Which join operation in Apache Spark allows you to combine two DataFrames based on a common key?Left JoinRight JoinInner JoinFull Outer Join30s
- Q3Which join operation in Apache Spark returns all the rows from both DataFrames, filling in null values for non-matching rows?Right JoinFull Outer JoinLeft JoinInner Join30s
- Q4Which join operation in Apache Spark returns all the rows from the left DataFrame and the matching rows from the right DataFrame?Full Outer JoinLeft JoinInner JoinRight Join30s
- Q5Which join operation in Apache Spark includes all the rows from the right DataFrame and the matching rows from the left DataFrame?Full Outer JoinLeft JoinRight JoinInner Join30s
- Q6Which join operation in Apache Spark can be used to combine two DataFrames based on multiple common keys?Inner JoinFull Outer JoinLeft JoinRight Join30s
- Q7Which join operation in Apache Spark can be used to combine two DataFrames without specifying a common key?Inner JoinCross JoinLeft JoinRight Join30s
- Q8Which join operation in Apache Spark combines two DataFrames based on a common key and returns all the rows from both DataFrames?Left JoinInner JoinFull Outer JoinRight Join30s
- Q9Which join operation in Apache Spark combines two DataFrames and returns only the rows that have matching keys in both DataFrames?Left JoinInner JoinRight JoinFull Outer Join30s
- Q10What is the result of an 'inner' join between two dataframes in Apache Spark?All rows from both dataframesCommon elements between both dataframesAll rows from the right dataframeAll rows from the left dataframe30s