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DASCA Senior Data Scientist Sample Questions:

1. Which of the following errors refers to the wrong negation of a true null hypothesis?

A) Logical Error
B) None of the above
C) Type II Error
D) Type I Error
E) Hypothesis Error

2. Which of the following is TRUE for Tensor?

A) Tensor is an array of floating-point numbers
B) In Tensor, there can be arbitrarily many dimensions to the array
C) All of the above
D) Tensor is used to describe multidimensional arrays of numbers on which we perform linear operations
E) Both B and C

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

A) All of the above
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) The "By" analysis technique reinforces the process of "thinking like a data scientist."
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) Both B and C

4. The Big Data Vision Workshop process is ideal for organizations who:

A) All of the above
B) Have a desire to leverage the Big Data Vision Workshop to identify where and how to leverage data and analytics to power their business models
C) Both A and B
D) Have a wealth of data that they do not know how to monetize
E) Have a desire to leverage Big Data to transform their business but do not know where and how to start

5. Which of the following is correct about microservices?

A) All of the above
B) Each service can be developed in any language that best fits the requirement
C) Each service is a new project
D) Each service is independent

Solutions: