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DASCA SDS Exam Syllabus Topics:

DASCA Senior Data Scientist Sample Questions:

Question 1

Which of the following is used to summarize a dataset by showing the median, quantiles, and min/max values for each of the variables?

A. Box Plots
B. Scatter Chart
C. Histogram
D. Pie Charts
E. Bar Charts

Question 2

Machine learning can be used in:

A. Real-time ads on web pages and mobile devices
B. Fraud detection
C. Pattern and image recognition
D. All of the above
E. Web search results

Question 3

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

Question 4

Which of these statements reflects a null hypothesis?

A. Men will score higher than women on spatial awareness
B. Women will score higher than men on empathy
C. There will be no relationship between caffeine consumption and performance
D. As temperature increases, so too will the level of aggression
E. There will be a significant difference between group 1 and group 2

Question 5

Tar is an example of:

A. CSV file format
B. Text file format
C. Archive file format
D. None of the above
E. ARV file format

Solutions: