DY0-001 Practice Online

Question 1

What is the primary purpose of the CRISP-DM (Cross-Industry Standard Process for Data Mining) framework in the context of data science projects?

A : To provide a structured approach to the entire data science life cycle

B : To optimize model performance and accuracy

C : To facilitate collaboration among team members

D : To automate data preprocessing and feature engineering

Answer: A

Question 2

What is an essential consideration when communicating results and recommendations to business stakeholders?

A : Including technical jargon

B : Providing excessive detail

C : Tailoring communication to the audience

D : Avoiding visualizations

Answer: C

Question 3

In neural networks, what type of layer is responsible for reducing the dimensionality of the input data?

A : Hidden

B : Pooling

C : Output

D : Input

Answer: B

Question 4

What technique is commonly used for imputing missing values in a dataset by replacing them with randomly selected values from the variable?

A : Regression imputation

B : Random imputation

C : Mean imputation

D : Mode imputation

Answer: B

Question 5

What natural language processing technique involves assigning syntactic categories (such as noun, verb, adjective) to words in a text?

A : Part-of-speech tagging

B : Text summarization

C : Sentiment analysis

D : Named-entity recognition

Answer: A

Name:	CompTIA Data Science Certification
Exam Code:	DY0-001
Certification:	CompTIA Data+
Vendor:	CompTIA
Total Questions:	265
Last Updated:	May 09, 2024