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Mock examination available in Windows operation system

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DASCA Senior Data Scientist Sample Questions:

1. Which of the following is NOT a main data container in Python?

A) Tuples
B) LinkedList
C) Lists
D) Dict

2. Which of the following is NOT a valid section of Big Data Strategy document?

A) Business decisions
B) Key business entities
C) Key business initiatives
D) Key decisions
E) Business strategy

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

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

4. Which of the following statements is correct?

A) Apache claimed that Spark is able to run parallel jobs 10 times faster in memory and 100 times faster on disk in comparison to the traditional Hadoop MapReduce
B) Apache claimed that Spark is able to run parallel jobs 50 times faster in memory and 5 times faster on disk in comparison to the traditional Hadoop MapReduce
C) Apache claimed that Spark is able to run parallel jobs 100 times faster in memory and 10 times faster on disk in comparison to the traditional Hadoop MapReduce
D) Apache claimed that Spark is able to run parallel jobs 1000 times faster in memory and 100 times faster on disk in comparison to the traditional Hadoop MapReduce

5. Which of the following can visualize variations in the base data, which can be used to identify outliers in the data for further investigation?

A) Scatter Plot
B) Trend Analysis
C) None of the above
D) Histogram
E) Box Plots

Solutions: