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NEW QUESTION 16
Why do you need to split a machine learning dataset into training data and test data?

A.    So you can try two different sets of features.
B.    To make sure your model is generalized for more than just the training data.
C.    To allow you to create unit tests in your code.
D.    So you can use one dataset for a wide model and one for a deep model.

[28/July/2018 Updated] Download PassLeader Professional Data Engineer VCE Practice Test And PDF Study Guide Collection (Part A)

New Updated Professional Data Engineer Exam Questions from PassLeader Professional Data Engineer PDF dumps! Welcome to download the newest PassLeader Professional Data Engineer VCE dumps: https://www.passleader.com/professional-data-engineer.html (80 Q&As)

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NEW QUESTION 1
Suppose you have a table that includes a nested column called “city” inside a column called “person”, but when you try to submit the following query in BigQuery, it gives you an error:
SELECT person FROM `project1.example.table1` WHERE city = “London”
How would you correct the error?

A.    Add “, UNNEST(person)” before the WHERE clause.
B.    Change “person” to “person.city”.
C.    Change “person” to “city.person”.
D.    Add “, UNNEST(city)” before the WHERE clause.