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Databricks Certification Databricks Certified Professional Data Scientist Exam

Databricks Certified Professional Data Scientist Exam

Last Update Apr 1, 2025
Total Questions : 138

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Questions 2

Let's say you have two cases as below for the movie ratings

1. You recommend to a user a movie with four stars and he really doesn't like it and he'd rate it two stars

2. You recommend a movie with three stars but the user loves it (he'd rate it five stars). So which statement correctly applies?

Options:

A.  

In both cases, the contribution to the RMSE is the same

B.  

In both cases, the contribution to the RMSE is the different

C.  

In both cases, the contribution to the RMSE, could varies

D.  

None of the above

Discussion 0
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Questions 3

What are the advantages of the Hashing Features?

Options:

A.  

Requires the less memory

B.  

Less pass through the training data

C.  

Easily reverse engineer vectors to determine which original feature mapped to a vector location

Discussion 0
Questions 4

Select the correct option which applies to L2 regularization

Options:

A.  

Computational efficient due to having analytical solutions

B.  

Non-sparse outputs

C.  

No feature selection

Discussion 0
Questions 5

Which of the following could be features?

Options:

A.  

Words in the document

B.  

Symptoms of a diseases

C.  

Characteristics of an unidentified object

D.  

0nly 1 and 2

E.  

All 1,2 and 3 are possible

Discussion 0

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