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DASCA SDS Exam Syllabus Topics:

DASCA Senior Data Scientist Sample Questions:

Question 1

What is TRUE for "rehashing"?

A. It requires a new hash function, which maps values into a larger range of integers
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. Both A and B
E. All of the above

Question 2

ElementTree sub-library gives us direct access to:

A. Parse tree of the XML
B. Copy tree of the XML
C. None of the above
D. Insert tree of the XML
E. Delete tree of the XML

Question 3

ARIMA model is:

A. Autoregressive moving average
B. Autoreactive moving average
C. Autointeractive moving average
D. Autoresponsive moving average
E. All of the above

Question 4

Machine learning can be categorized as:

A. Supervised learning
B. Unsupervised learning
C. Reinforcement learning
D. All of the above

Question 5

Data wrangling is the process of getting the data from:

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

Solutions: