Big Data Technologies: Spark Processing II
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Questions and Answers

What type of variable is a broadcast variable in Spark?

  • Global variable
  • Immutable shared variable (correct)
  • Private variable
  • Mutable shared variable
  • How does Spark initially send the broadcast variable across the cluster?

  • Using the driver as the only source (correct)
  • Using a round-robin approach
  • Using all worker nodes as sources simultaneously
  • Using a master-slave communication model
  • What protocol does Spark use for sending broadcast variables across the cluster?

  • FTP protocol
  • BitTorrent-like protocol (correct)
  • HTTP protocol
  • SSH protocol
  • How are broadcast variables created in Spark?

    <p>$Broadcast$ $broadcastVar = sc.broadcast(new ext{ }int[] ext{ }{1, 2, 3});$</p> Signup and view all the answers

    What is the purpose of using broadcast variables in Spark?

    <p>To efficiently distribute large read-only datasets to worker nodes</p> Signup and view all the answers

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