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DASCA Senior Data Scientist Sample Questions:

1. 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

2. Which of the following is correct?

A) Both A and B
B) The central object in Pandas is called a DataFrame
C) DataFrame is similar to SQL tables or R data frames
D) All of the above
E) A data frame is a table with rows and columns

3. OCR (Optical Character Recognition) is an application used for:

A) Data mining
B) Big Data Analytics
C) Machine learning
D) MapReduce

4. Which of the following is NOT an example of graphical model?

A) Flow charts
B) Computer networks
C) Electrical circuits
D) Road maps
E) Geographical networks

5. Which of the following is TRUE for Business Metamorphosis?

A) Both A and C
B) The Business Metamorphosis phase is where organizations integrate the insights that they captured about their customers' usage patterns, product performance behaviors, and overall market trends to transform their business models
C) Business Metamorphosis exercise can uncover Big Data requirements around decisions, analytics and data sources that can be leveraged to transform or metamorphose your organization's business model
D) All of the above
E) The Business Metamorphosis phase helps drive an organization's core business model through the analytic insights gathered as the organization traverses the Big Data Business Model Maturity Index

Solutions: