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DASCA Senior Data Scientist Sample Questions:

1. Which classification steps are performed in inductive techniques?
i. Training Step
ii. Test Step
iii. Validation Step
iv. Application Step

A) i, ii
B) i, ii, iii, iv
C) i, ii, iv
D) ii, iii

2. Which of the following is TRUE for Tensor?

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

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

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

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. Image files can be broken down into two broad categories:
i. Rasterized
ii. Vectorized
iii. Sectorized

A) i, ii
B) None of the above
C) ii, iii
D) i, iii

Solutions: