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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 108 discussion

Actual exam question from Databricks's Certified Associate Developer for Apache Spark
Question #: 108
Topic #: 1
[All Certified Associate Developer for Apache Spark Questions]

The code block shown below should cache DataFrame storesDF only in Spark's memory. Choose the response that correctly fil ls in the numbered blanks within the code block to complete this task.

Code block:

__1__.__2__(__3__).count()

  • A. 1. storesDF
    2. cache
    3. StorageLevel.MEMORY_ONLY
  • B. 1. storesDF
    2. storageLevel
    3. cache
  • C. 1. storesDF
    2. cache
    3. Nothing
  • D. 1. storesDF
    2. persist
    3. Nothing
  • E. 1. storesDF
    2. persist
    3. StorageLevel.MEMORY_ONLY
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Suggested Answer: E 🗳️
by Ahmadkt at Nov. 27, 2023, 5:58 p.m.

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Ahmadkt
1 year ago
E: df.persist(StorageLevel.MEMORY_ONLY).count()
upvoted 2 times
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