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Exam Certified Data Engineer Associate All Questions

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Exam Certified Data Engineer Associate topic 1 question 109 discussion

Actual exam question from Databricks's Certified Data Engineer Associate
Question #: 109
Topic #: 1
[All Certified Data Engineer Associate Questions]

What is a benefit of creating an external table from Parquet rather than CSV when using a CREATE TABLE AS SELECT statement?

  • A. Parquet files can be partitioned
  • B. Parquet files will become Delta tables
  • C. Parquet files have a well-defined schema
  • D. Parquet files have the ability to be optimized
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Suggested Answer: C 🗳️
by mgari at May 14, 2024, 2:12 p.m.

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RandomForest
6 months, 2 weeks ago
Selected Answer: C
Parquet supports rich data types and enforces a schema, making it more suitable for structured data. CSV lacks schema enforcement and treats everything as plain text, which can lead to data parsing issues.
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MDWPartners
11 months, 1 week ago
Selected Answer: C
Parquetare columnar and can be optimized. However, I think the key part is " when using a CREATE TABLE AS SELECT statement?", that's C
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mgari
11 months, 3 weeks ago
D partquet file are columnar and otimised
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