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DASCA Senior Data Scientist Sample Questions:

1. Which of the following is TRUE for Tensor?

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

2. The grid computing environment uses a middleware to:

A) None of the above
B) Both A and B
C) Divide computing resources
D) Combine computing resources

3. Which of the following is correct for Markov chain?

A) Both B and C
B) A Markov chain is a sequence of fixed variables X1, X2
C) A Markov chain is the state of a system at sequential points in time
D) A Markov chain is a sequence of random variables X1, X2
E) Both A and B

4. Which of the following is FALSE for Social Network Analysis (SNA)?

A) None of the above
B) SNA characterizes networked structures in terms of nodes and the ties or edges that connect them
C) Social Network Analysis (SNA) is an example of trend analysis
D) SNA is used to investigate social structures and relationships across social networks
E) Social Network Analysis (SNA) is an example of graph analysis

5. ARIMA model is:

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

Solutions: