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DASCA Senior Data Scientist Sample Questions:

1. Which of the following is correct?

A) The central object in Pandas is called a DataFrame
B) DataFrame is similar to SQL tables or R data frames
C) All of the above
D) A data frame is a table with rows and columns
E) Both A and B

2. Which of the following is TRUE for "By" analysis?

A) The "By" analysis technique reinforces the process of "thinking like a data scientist."
B) All of the above
C) Both B and C
D) "By" analysis is a technique by which business subject matter experts (SMEs) and the Data Science team could collaborate to uncover new variables and metrics that might be better predictors of business performance.
E) "By" analysis is used to create a collaborative technique to drive alignment between the business users and the data scientists to identify and brainstorm variables and metrics that might be better predictors of business performance.

3. Which of the following is TRUE about Avro?

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

4. SpamAssassin has been developed to detect:

A) Email with big attachments
B) Spam emails
C) None of the above
D) Email with virus

5. Which of the following is TRUE for Tensor?

A) Tensor is an array of floating-point numbers
B) In Tensor, there can be arbitrarily many dimensions to the array
C) All of the above
D) Tensor is used to describe multidimensional arrays of numbers on which we perform linear operations
E) Both B and C

Solutions: