EMC Advanced Analytics Specialist Exam for Data Scientists - E20-065 FREE EXAM DUMPS QUESTIONS & ANSWERS]

Question 1

You are analyzing written transcripts of focus groups conducted on product X.
You approach is to use TF-IDF for your analysis.
What combination of TF-IDF scores should you examine to ensure you only report on the most important terms?

A. High TF score and high DF score B. High TF score and high IDF score C. Low TF score and low DF score D. High TF score and low IDF score

Discussion 0

Correct Answer: D Vote an answer

Question 2

What are key characteristics of regular lattices?

A. Low clustering coefficients, high network diameters B. High clustering coefficients, small network diameters C. High clustering coefficients; high network diameters D. Low clustering coefficients; small network diameters

Discussion 0

Correct Answer: C Vote an answer

Question 3

In a typical multinomial logistic regression analysis involving six outcomes (class labels) and three input variables, how many model parameters will need to be estimated?

A. 20 B. 9 C. 18 D. 24

Discussion 0

Correct Answer: C Vote an answer

Question 4

How is the relative value of a node visualized in a sunburst?

A. Area B. Gradient C. Position D. Color

Discussion 0

Correct Answer: D Vote an answer

Question 5

What runs more efficiently because of Apache Tez?

A. Pig and Hive B. Yarn and Spark C. Hive and HBase D. All MapReduce jobs

Discussion 0

Correct Answer: D Vote an answer

Question 6

What is the maximum degree of a node in an undirected graph with 50 nodes'?

A. 50 B. 49 C. 2500 D. 1250

Discussion 0

Correct Answer: B Vote an answer

Question 7

What is a characteristic of spark?

A. Unable to run map -> reduce execution plans B. Supports applications written in Python, Java, and Scala C. Supports workflows that can return to previous work steps D. Less efficient processing small files than Hadoop MapReduce

Discussion 0

Correct Answer: B Vote an answer