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Exam Certified Data Engineer Associate All Questions

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Exam Certified Data Engineer Associate topic 1 question 151 discussion

Actual exam question from Databricks's Certified Data Engineer Associate
Question #: 151
Topic #: 1
[All Certified Data Engineer Associate Questions]

A data engineer has realized that they made a mistake when making a daily update to a table. They need to use Delta time travel to restore the table to a version that is 3 days old. However, when the data engineer attempts to time travel to the older version, they are unable to restore the data because the data files have been deleted.

Which of the following explains why the data files are no longer present?

  • A. The VACUUM command was run on the table
  • B. The TIME TRAVEL command was run on the table
  • C. The DELETE HISTORY command was run on the table
  • D. The OPTIMIZE command was nun on the table
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Suggested Answer: A 🗳️
by MultiCloudIronMan at Dec. 16, 2024, 2:26 p.m.

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MultiCloudIronMan
1 month, 3 weeks ago
Selected Answer: A
Vacuum with a date range =< 3 days because default is over 7 days
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