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DASCA Senior Data Scientist Sample Questions:

1. 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) The "By" analysis technique reinforces the process of "thinking like a data scientist."
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) All of the above

2. 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) Box Plots
C) Histogram
D) Trend Analysis
E) None of the above

3. SpamAssassin has been developed to detect:

A) Email with big attachments
B) Email with virus
C) Spam emails
D) None of the above

4. IoT is built on:

A) Cloud Computing
B) Both A and B
C) Networks of data gathering devices
D) None of the above

5. Example of amortized performance is:

A) HDFS dictionaries
B) Hadoop dictionaries
C) Python dictionaries
D) All of the above
E) MapReduce dictionaries

Solutions: