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DASCA Senior Data Scientist Sample Questions:

1. Machine learning can be used in:

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

2. In unsupervised learning, learning takes place by based on these deductions in input data and developing patterns:

A) Both A and B
B) Detecting irregularities
C) Detecting regularities
D) None of the above

3. A workflow refers to a:

A) Indirected acyclic graph
B) Directed cyclic graph
C) Indirected cyclic graph
D) Directed acyclic graph

4. Which of the following is TRUE about monetization exercise?

A) The monetization exercise works by first understanding the product usage patterns and customer usage behaviors associated with a particular product and service
B) The monetization exercise process then seeks to identify complementary or secondary recommendations that can be packaged and delivered along with that product or service
C) The monetization exercise provides an opportunity to uncover new product and/or service opportunities
D) Both B and C
E) All of the above

5. Semi-structured data does NOT include:

A) Database system
B) File systems
C) Schema-full data
D) Scientific data

Solutions: