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CompTIA DataAI v1 Exam (DY0-001) - CompTIA Exam Questions

Last updated on June 20, 2026

97% Exam Compliance
85 Total Questions
1
Question
In a modeling project, people evaluate phrases and provide reactions as the target variable for the model. Which of the following best describes what this model is doing?
Options
A Sentiment analysis
B Named-entity recognition
C TF-IDF vectorization
D Part-of-speech tagging
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2
Question
A data scientist is using the following confusion matrix to assess model performance:

Exhibit

The model is predicting whether a delivery truck will be able to make 200 scheduled delivery stops. Every time the model is correct, the company saves an hour in planning and scheduling of maintenance work. Every time the model is wrong, the company loses four hours of delivery time for the truck. Which of the following is the net model impact for the company?
Options
A 25 hours lost
B 25 hours saved
C 165 hours lost
D 165 hours saved
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3
Question
Which of the following distributions would be best to use for hypothesis testing on a data set with 20 observations?
Options
A Power law
B Uniform
C Normal
D Student's t-
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4
Question
Which of the following best describes the minimization of the residual term in a ridge linear regression?
Options
A |e|
B e
C e2
D 0
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5
Question
A data scientist receives an update on a business case about a machine that has thousands of error codes. The data scientist creates the following summary statistics profile while reviewing the logs for

Exhibit

each machine: Which of the following is the most likely concern with respect to data design for model ingestion?
Options
A Sparse matrix
B Insufficient features
C Granularity misalignment
D Multivariate outliers
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