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DASCA SDS Exam Syllabus Topics:

DASCA Senior Data Scientist Sample Questions:

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

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

2. What is DevOps?

A) Software Development
B) Software Operations
C) Quality Assurance
D) All

3. Which of the following is correct about customer lifetime value (CLTV)?
i. Most organizations determine the current customer lifetime value (CLTV) based on historic sales over past
12 to 18 months
ii. The goal of the CLTV score is to help marketing and store personnel to determine the "value" of a customer

A) Both i and ii
B) Only i
C) Only ii

4. Which of the following is TRUE for "By" analysis?

A) Both B and C
B) "By" analysis is used to create a collaborative technique to drive alignment between the business users and the data scientists to identify and brainstorm variables and metrics that might be better predictors of business performance.
C) All of the above
D) "By" analysis is a technique by which business subject matter experts (SMEs) and the Data Science team could collaborate to uncover new variables and metrics that might be better predictors of business performance.
E) The "By" analysis technique reinforces the process of "thinking like a data scientist."

5. The DevOps movement is an outgrowth of which of the following software development methodologies?

A) Test-driven development and model-driven development
B) Promise-based algorithms
C) Agile
D) Waterfall

Solutions: