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Apache spark -Joins (02/08/2023)

Quiz by Anitha PSGRKCW

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10 questions
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  • Q1
    Which join operation in Apache Spark enables us to combine two DataFrames based on a common column or key?
    groupByKey
    join
    flatMap
    union
    30s
  • Q2
    Which join operation in Apache Spark allows you to combine two DataFrames based on a common key?
    Left Join
    Right Join
    Inner Join
    Full Outer Join
    30s
  • Q3
    Which join operation in Apache Spark returns all the rows from both DataFrames, filling in null values for non-matching rows?
    Right Join
    Full Outer Join
    Left Join
    Inner Join
    30s
  • Q4
    Which join operation in Apache Spark returns all the rows from the left DataFrame and the matching rows from the right DataFrame?
    Full Outer Join
    Left Join
    Inner Join
    Right Join
    30s
  • Q5
    Which join operation in Apache Spark includes all the rows from the right DataFrame and the matching rows from the left DataFrame?
    Full Outer Join
    Left Join
    Right Join
    Inner Join
    30s
  • Q6
    Which join operation in Apache Spark can be used to combine two DataFrames based on multiple common keys?
    Inner Join
    Full Outer Join
    Left Join
    Right Join
    30s
  • Q7
    Which join operation in Apache Spark can be used to combine two DataFrames without specifying a common key?
    Inner Join
    Cross Join
    Left Join
    Right Join
    30s
  • Q8
    Which join operation in Apache Spark combines two DataFrames based on a common key and returns all the rows from both DataFrames?
    Left Join
    Inner Join
    Full Outer Join
    Right Join
    30s
  • Q9
    Which join operation in Apache Spark combines two DataFrames and returns only the rows that have matching keys in both DataFrames?
    Left Join
    Inner Join
    Right Join
    Full Outer Join
    30s
  • Q10
    What is the result of an 'inner' join between two dataframes in Apache Spark?
    All rows from both dataframes
    Common elements between both dataframes
    All rows from the right dataframe
    All rows from the left dataframe
    30s

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