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Exam Certified Associate Developer for Apache Spark All Questions

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Exam Certified Associate Developer for Apache Spark topic 1 question 133 discussion

Actual exam question from Databricks's Certified Associate Developer for Apache Spark
Question #: 133
Topic #: 1
[All Certified Associate Developer for Apache Spark Questions]

Which of the following Spark properties is used to configure whether DataFrames found to be below a certain size threshold at runtime will be automatically broadcasted?

  • A. spark.sql.broadcastTimeout
  • B. spark.sql.autoBroadcastJoinThreshold
  • C. spark.sql.shuffle.partitions
  • D. spark.sql.inMemoryColumnarStorage.batchSize
  • E. spark.sql.adaptive.localShuffleReader.enabled
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Suggested Answer: B 🗳️
by jtu363 at May 30, 2024, 2:08 p.m.

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5cf7ace
5 months, 2 weeks ago
Selected Answer: B
This property is used to configure the threshold for automatically broadcasting small tables in join operations. When the size of a DataFrame is below this threshold, it will be broadcasted to all executor nodes for efficient join operations.
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jtu363
5 months, 4 weeks ago
Selected Answer: B
Sorry,its B, can't edit previous answer
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jtu363
5 months, 4 weeks ago
Selected Answer: A
spark.conf.set("spark.sql.autoBroadcastJoinThreshold", value)
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