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DASCA Senior Data Scientist Sample Questions:

1. Which of the following is TRUE for data lake?

A) The data lake can make both of the Business Intelligence and Data Science environments less agile and more productive
B) The data lake enables organizations to treat data as an organizational asset to be gathered and nurtured versus a cost to be minimized
C) The data lake can make both of the Business Intelligence and Data Science environments more agile and more productive
D) None of the above
E) The data lake enables organizations to gather, manage, enrich, and analyze many new sources of data, whether structured or unstructured

2. Which of the following is a DevOps Practice?

A) All of the above
B) Continuous delivery
C) Continuous integration
D) Continuous build

3. In unsupervised learning, learning takes place by based on these deductions in input data and developing patterns:

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

4. Exploratory analytic algorithms help the Data Science team to better:

A) All of the above
B) Gain a high-level understanding of relationships
C) Understand the data content
D) Both A and B
E) Understand patterns in the data

5. Which of the following is correct for Markov chain?

A) A Markov chain is a sequence of random variables X1, X2
B) A Markov chain is a sequence of fixed variables X1, X2
C) Both B and C
D) Both A and B
E) A Markov chain is the state of a system at sequential points in time

Solutions: