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DASCA Senior Data Scientist Sample Questions:

1. Spark should be used when:

A) None of the above
B) Both A and B
C) Data is massive
D) Data is not massive

2. ARIMA model is:

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

3. What is TRUE for "rehashing"?

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

4. Tar is an example of:

A) Archive file format
B) ARV file format
C) CSV file format
D) None of the above
E) Text file format

5. What is Scrumban?

A) It combines the principles of Scrum and Kanban into a push-based system
B) It is Kanban
C) It combines the principles of Scrum and Kanban into a pull-based system
D) It is Scrum

Solutions: