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DASCA Senior Data Scientist Sample Questions:

1. What is the agenda of discussion at a "stand up" meeting of an Agile team?

A) What they are planning to do today
B) What they accomplished the previous day
C) Any roadblocks they are running into
D) Both A and B
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) Box Plots
B) Trend Analysis
C) None of the above
D) Histogram
E) Scatter Plot

3. What is Scrum?

A) Agile is a subset of Scrum
B) None of the above
C) Scrum and Agile are the same
D) Scrum is a subset of Agile

4. Which of the following statements is correct?

A) 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
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 10 times faster in memory and 100 times faster on disk in comparison to the traditional Hadoop MapReduce
D) 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

5. In regression, the principle of machine learning is used to optimize the parameters to:

A) None of the above
B) Calculate the closest possible outcomes
C) Both A and B
D) Minimize the approximation error

Solutions: