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Exam Certified Data Engineer Associate All Questions

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Exam Certified Data Engineer Associate topic 1 question 123 discussion

Actual exam question from Databricks's Certified Data Engineer Associate
Question #: 123
Topic #: 1
[All Certified Data Engineer Associate Questions]

A data engineer has developed a data pipeline to ingest data from a JSON source using Auto Loader, but the engineer has not provided any type inference or schema hints in their pipeline. Upon reviewing the data, the data engineer has noticed that all of the columns in the target table are of the string type despite some of the fields only including float or boolean values.

Why has Auto Loader inferred all of the columns to be of the string type?

  • A. Auto Loader cannot infer the schema of ingested data
  • B. JSON data is a text-based format
  • C. Auto Loader only works with string data
  • D. All of the fields had at least one null value
Show Suggested Answer Hide Answer
Suggested Answer: B 🗳️
by csrazdan at July 19, 2024, 4:59 a.m.

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RandomForest
1 month, 1 week ago
Selected Answer: B
The correct answer is B as JSON files do not include datatypes
upvoted 1 times
...
csrazdan
4 months, 1 week ago
Selected Answer: B
JSON file does not include datatype and all columns are defaulted as string
upvoted 1 times
...

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