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DASCA SDS Exam Syllabus Topics:

DASCA Senior Data Scientist Sample Questions:

1. What is TRUE for "rehashing"?

A) All of the above
B) Key/value pairs from the original table can be inserted into the new, larger one
C) Allocate a new, larger hash table in memory
D) It requires a new hash function, which maps values into a larger range of integers
E) Both A and B

2. Spark is written in:

A) Scala
B) Java
C) Python
D) C
E) C++

3. Which of the following is NOT a part of Internal Process Optimization?

A) None of the above
B) Business Metamorphosis
C) Business Optimization
D) Business Insights
E) Business Monitoring

4. Data wrangling is the process of getting the data from:

A) None of the above
B) Its modified meaning format into something suitable for more conventional analytics
C) Both A and B
D) Its raw format into something suitable for more conventional analytics

5. 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) Bar Charts
D) Pie Charts
E) Histogram

Solutions: