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DASCA Senior Data Scientist Sample Questions:

1. Spark programs can be written in:

A) Java
B) All of the above
C) Scala
D) Python
E) None of the above

2. Spark should be used when:

A) Both A and B
B) Data is massive
C) Data is not massive
D) None of the above

3. Which of the following is correct about microservices?

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

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

A) "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.
B) All of the above
C) Both B and C
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. In unsupervised learning, learning takes place by based on these deductions in input data and developing patterns:

A) Both A and B
B) Detecting regularities
C) None of the above
D) Detecting irregularities

Solutions: