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DASCA Senior Data Scientist Sample Questions:

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

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

2. Which of the following is TRUE about Avro?

A) None of the above
B) Both A and B
C) Avro is a data serialization framework
D) Avro is based on Remote Procedure Call (RPC)

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

4. What is DevOps?

A) Software Development
B) Software Operations
C) All
D) Quality Assurance

5. Which of the following can be classified as factor analysis in machine learning?

A) None of the above
B) Both A and B
C) Confirmatory factor analysis
D) Exploratory factor analysis

Solutions: