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Exam Certified Associate Developer for Apache Spark topic 1 question 173 discussion

Actual exam question from Databricks's Certified Associate Developer for Apache Spark
Question #: 173
Topic #: 1
[All Certified Associate Developer for Apache Spark Questions]

Which of the following code blocks attempts to cache the partitions of DataFrame storesDF only in Spark’s memory?

  • A. storesDF.cache(StorageLevel.MEMORY_ONLY).count()
  • B. storesDF.persist().count()
  • C. storesDF.cache().count()
  • D. storesDF.persist(StorageLevel.MEMORY_ONLY).count()
  • E. storesDF.persist("MEMORY_ONLY").count()
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Suggested Answer: D 🗳️
by Sowwy1 at April 10, 2024, 6:03 p.m.

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bp_a_user
2 weeks, 3 days ago
Selected Answer: D
true Example from spec df.spark.persist(pyspark.StorageLevel.MEMORY_ONLY)
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Sowwy1
3 months, 4 weeks ago
D. storesDF.persist(StorageLevel.MEMORY_ONLY).count()
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