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DASCA Senior Data Scientist Sample Questions:

1. Which of the following phases is NOT a Big Data Business Model Maturity Index?

A) Business Strategy
B) Business Optimization
C) Business Metamorphosis
D) Business Monitoring
E) Data Monetization

2. Which of the following is TRUE for data lake?

A) The data lake can make both of the Business Intelligence and Data Science environments less agile and more productive
B) The data lake can make both of the Business Intelligence and Data Science environments more agile and more productive
C) The data lake enables organizations to gather, manage, enrich, and analyze many new sources of data, whether structured or unstructured
D) None of the above
E) The data lake enables organizations to treat data as an organizational asset to be gathered and nurtured versus a cost to be minimized

3. Which of the following is TRUE about Avro?

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

4. A workflow refers to a:

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

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

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

Solutions: