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DASCA Senior Data Scientist Sample Questions:

1. Business Intelligence (BI) is:

A) BI focuses on "What happened?"
B) BI focuses on reporting on the future state of the business
C) Both A and B
D) Both B and C
E) BI focuses on descriptive analytics

2. Which of the following is the common evolutionary algorithm of neural networks?

A) Genetic algorithm
B) Evolution strategy
C) All of the above
D) Genetic programming

3. Which of these statements reflects a null hypothesis?

A) Men will score higher than women on spatial awareness
B) There will be a significant difference between group 1 and group 2
C) There will be no relationship between caffeine consumption and performance
D) Women will score higher than men on empathy
E) As temperature increases, so too will the level of aggression

4. In regression, the principle of machine learning is used to optimize the parameters to:

A) Calculate the closest possible outcomes
B) None of the above
C) Minimize the approximation error
D) Both A and B

5. Which of the following is TRUE for data lake?

A) The data lake enables organizations to gather, manage, enrich, and analyze many new sources of data, whether structured or unstructured
B) None of the above
C) The data lake can make both of the Business Intelligence and Data Science environments more agile and more productive
D) The data lake enables organizations to treat data as an organizational asset to be gathered and nurtured versus a cost to be minimized
E) The data lake can make both of the Business Intelligence and Data Science environments less agile and more productive

Solutions: