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DASCA Senior Data Scientist Sample Questions:

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

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

2. Which of the following is a trend analysis component of time series decomposition?

A) Seasonal
B) Irregular
C) All of the above
D) Both A and B
E) Cyclical

3. Semi-structured data does NOT include:

A) Database system
B) Schema-full data
C) File systems
D) Scientific data

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

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

5. A workflow refers to a:

A) Indirected acyclic graph
B) Directed acyclic graph
C) Directed cyclic graph
D) Indirected cyclic graph

Solutions: