EMC E20-065 Online Practice Questions and Exam Preparation

EMC E20-065 Online Questions & Answers

• Question 61:

  What are two visualization tools used for trivariate data?

  A. Scatter plot matrix
  B. Hexbin plot and heatmap
  C. Scatter plot matrix and density plot
  D. Scatter plot matrix and heatmap
  B. Hexbin plot and heatmap

• Question 62:

  What do lemmatization and stemming have in common?

  A. Use WordNet
  B. Remove common words in a natural language
  C. Reduce the high dimensionality in text
  D. Use a set of heuristics
  C. Reduce the high dimensionality in text

• Question 63:

  Consider the two sentences below. I mailed my credit card application to the bank We walked along the river bank until we came to a waterwheel

  What type of NLP ambiguity might occur when interpreting the word "bank"?

  A. Discourse
  B. Syntactic
  C. Semantic
  D. Acoustic
  C. Semantic

• Question 64:

  What is NOT a category of a NoSQL data store?

  A. Columnar
  B. Document
  C. Key/Value
  D. Flat File
  D. Flat File

• Question 65:

  If two of the communities are re-designated to be one community, how does that change the network characteristics? Refer to the exhibit.

  

  A. Neighborhood overlap would increase
  B. Network diameter would decrease
  C. Modularity would increase
  D. Modularity would decrease
  B. Network diameter would decrease

• Question 66:

  The naive Bayer classifier is trained over 1600 movie reviews and then tested over 400 reviews.

  Here is the resulting confusion matrix:

  190 (TP) 10(FN)

  80 (FP) 120(TN)

  What are the precision, recall, and the F1-score values?

  A. Precision0.95; Recall: 0704; F1-score: 0.809
  B. Precision 0.613, Recall: 0.95, F1-score: 0.745
  C. Precision 0.704, Recall: 0.95; F1-score: 0.809
  D. Precision 0.95; Recall: 0.613; F1-score: 0.745
  C. Precision 0.704, Recall: 0.95; F1-score: 0.809