E20-065 by EMC Actual Free Exam Q&As

Question 1

You conduct a TFIDF analysis on 3 documents containing raw text and derive TFIDF ("data", document y) = 1.908. You know that the term "data" only appears in document 2.
What is the TF of "data" in document 2?

A. 2 based on the following reasoning: TFIDF = TF1DF = 1 908 You then know that IDF will equal LOG (32)=0.954 Therefore, TFIDF=TF*0.954 = 1.908 TF will then round to 2 B. 11 based on the following reasoning: TFIDF = TF1DF = 1908 You then know that IDF will equal LOG(3/2)=0.176 Therefore, TFIDF=TF"0.176 = 1.908 TF will then round to 11 C. 6 based on the following reasoning: TFIDF = TF1DF = 1.908 You then know that IDF will equal 3/1=3 Therefore, TFIDF=TF/3 = 1.908 TF will then round to 6 D. 4 based on the following reasoning: TFIDF = TF1DF = 1.908 You then know that IDF will equal LOG (3/1 )=0.477 Therefore, TFIDF=TF'0 477 = 1.908 TF will then round to 4

Discussion 0

Correct Answer: D Vote an answer

Question 2

What are key characteristics of regular lattices?

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

Discussion 0

Correct Answer: D Vote an answer

Question 3

What is a characteristic of stop words?

A. Include words such as "a", "an", and "the" B. Meaningful words requiring a parser to stop and examine them C. Used in term frequency analysis D. Don't occur often in text

Discussion 0

Correct Answer: A Vote an answer

Question 4

What is a characteristic of spark?

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

Discussion 0

Correct Answer: B Vote an answer

Question 5

After a client submits a job request to the YARN ResourceManager, what happens next?

A. The ApplicationManager starts an ApplicationMaster B. The Resource Manager requests load data from the NodeManagers C. The ResourceManager allocates containers to run map and reduce tasks D. The scheduler allocates a container to run an ApplicationMaster

Discussion 0

Correct Answer: A Vote an answer

Question 6

In the graph, which edge would be considered a weak lie? Refer to the exhibit.

A. E-F B. B-C C. C-E D. G-l

Discussion 0

Correct Answer: D Vote an answer

Question 7

What process must address acoustic ambiguity in NLP?

A. Speech recognition B. Word sense disambiguation C. Discourse D. Part-of-speech tagging

Discussion 0

Correct Answer: A Vote an answer

EMC Advanced Analytics Specialist Exam for Data Scientists - E20-065 Exam Practice Test