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DASCA Senior Data Scientist Sample Questions:

1. Which of the following can be classified as factor analysis in machine learning?

A) Confirmatory factor analysis
B) Exploratory factor analysis
C) None of the above
D) Both A and B

2. Which of the following is correct?

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

3. Which of the following is an SLAs specification in case of Internet Service Provider (ISP)?

A) Turnaround Time (TAT)
B) All of the above
C) Mean Time To Recovery (MTTR)
D) Mean Time Between Failures (MTBF)

4. In regression, the principle of machine learning is used to optimize the parameters to:

A) Minimize the approximation error
B) Calculate the closest possible outcomes
C) None of the above
D) Both A and B

5. Which of the following is NOT a cluster management tool?

A) Apache Mesos
B) Apache Ambari
C) Apache Hadoop
D) Zettaset Orchestrator

Solutions: