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DASCA Senior Data Scientist Sample Questions:

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

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

2. Which of the following statements is correct?

A) Apache claimed that Spark is able to run parallel jobs 50 times faster in memory and 5 times faster on disk in comparison to the traditional Hadoop MapReduce
B) Apache claimed that Spark is able to run parallel jobs 1000 times faster in memory and 100 times faster on disk in comparison to the traditional Hadoop MapReduce
C) Apache claimed that Spark is able to run parallel jobs 100 times faster in memory and 10 times faster on disk in comparison to the traditional Hadoop MapReduce
D) Apache claimed that Spark is able to run parallel jobs 10 times faster in memory and 100 times faster on disk in comparison to the traditional Hadoop MapReduce

3. Business Intelligence (BI) is:

A) BI focuses on descriptive analytics
B) BI focuses on "What happened?"
C) Both B and C
D) BI focuses on reporting on the future state of the business
E) Both A and B

4. Which of the following is correct?
i. LaTeX is used to publish work in a scientific journal
ii. LaTeX is a markup language that can be compiled into formatted documents iii. LaTeX is for publishing scientific papers

A) i, ii
B) ii, iii
C) i, ii, iii
D) i, iii

5. Spark programs can be written in:

A) Python
B) All of the above
C) Java
D) None of the above
E) Scala

Solutions: