EMC Proven Professional – Data Science and Big Data Analytics Free Practice Exam Questions

40 real EMC Proven Professional – Data Science and Big Data Analytics exam questions with answers and AI explanations. Dell Technologies certification prep — page 2 of 4.

1. Question 11: What is an appropriate data visualization to use in a presentation for an analyst audience?
2. Question 12: When would you use GROUP BY ROLLUP clause in your OLAP query?
3. Question 13: Which type of numeric value does a logistic regression model estimate?
4. Question 14: Your colleague, who is new to Hadoop, approaches you with a question. They want to know how best to access their data. This colleague has a strong background i…
5. Question 15: In R, functions like plot() and hist() are known as what?
6. Question 16: Review the following code: SELECT pn, vn, sum(prc*qty) FROM sale - GROUP BY CUBE(pn, vn) ORDER BY 1, 2, 3; Which combination of subtotals do you expect to be r…
7. Question 17: In MADlib what does MAD stand for?
8. Question 18: The web analytics team uses Hadoop to process access logs. They now want to correlate this data with structured user data residing in their massively parallel…
9. Question 19: When would you prefer a Naive Bayes model to a logistic regression model for classification?
10. Question 20: Before you build an ARMA model, how can you tell if your time series is weakly stationary?