Dell E20-007 - Data Science Associate Exam Exam
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Total 198 questions
Question #1 (Topic: )
Assume you are performing an analysis to determine fraud detection on credit card usage.
You will need to ensure higher-risk transactions. These may indicate that fraudulent credit
card activity is retained in your data for analysis and not dropped as outliers during pre-
processing.
What is the approach for loading data into the analytical sandbox for this analysis?
You will need to ensure higher-risk transactions. These may indicate that fraudulent credit
card activity is retained in your data for analysis and not dropped as outliers during pre-
processing.
What is the approach for loading data into the analytical sandbox for this analysis?
A. ELT
B. ETL
C. EDW
D. OLTP
Answer: A
Question #2 (Topic: )
Which characteristic applies mainly to Data Science as opposed to Business Intelligence?
A. Advanced analytical methods
B. Robust reporting
C. Focus on structured data
D. Data dashboards
Answer: A
Question #3 (Topic: )
In linear regression, what indicates that an estimated coefficient is significantly different
than zero?
than zero?
A. A small p-value
B. R-squared near 1
C. R-squared near 0
D. The estimated coefficient is greater than 3
Answer: A
Question #4 (Topic: )
What is required in a presentation for project sponsors?
A. The "Big Picture" takeaways for executive level stakeholders
B. Data warehouse design changes
C. Line by line review of the developed code
D. Detailed statistical basis for the modeling approach used in the project
Answer: A
Question #5 (Topic: )
In R, functions like plot() and hist() are known as what?
A. generic functions
B. virtual methods
C. virtual functions
D. generic methods
Answer: B
