EMC EMC Certifications E20-065 Questions & Answers

• Question 11:

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

  

  A. C-E

  B. E-F

  C. B-C

  D. G-l

  Correct Answer: D

• Question 12:

  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

  Correct Answer: B

• Question 13:

  What is an effective use of color in visualization?

  A. Use self-explanatory colors so a legend is unnecessary

  B. Maximize use of color to make a more lasting impression

  C. Use high contrast colors such as red and blue

  D. Minimize use of color except for emphasis

  Correct Answer: C

• Question 14:

  How can you improve processing performance in HIVE?

  A. Partition tables

  B. Run the SET hive.exec.parallel = false command

  C. Ensure highly normalized tables and use joins

  D. Minimize bucketing

  Correct Answer: A

• Question 15:

  What are key characteristics of regular lattices?

  A. Low clustering coefficients, high network diameters

  B. High clustering coefficients, small network diameters

  C. Low clustering coefficients; small network diameters

  D. High clustering coefficients; high network diameters

  Correct Answer: D

• Question 16:

  What is a random subspace of features, as used by Random Forests?

  A. A random subset of features that are chosen at each split in the decision tree

  B. Filtration of data that does not meet a pre-defined weighting thrsehold

  C. The creation of out-of-bag (OOB) data that is used to select features

  D. Removal of highly correlated variables to randomize the features

  Correct Answer: A

• Question 17:

  Which representation is most suitable for a small and highly connected network?

  A. Edge list

  B. Adjacency matrix

  C. Eigenvector centrality

  D. Adjacency list

  Correct Answer: B

• Question 18:

  An edge has an embeddedness of 0. What is the edge most likely to be?

  A. Part of regular lattice

  B. Weak tie

  C. Part of a clique

  D. Strong tie

  Correct Answer: C

• Question 19:

  What is a characteristic of lemmatization?

  A. Can be performed by calling the synset () function on a lemma in LNTK

  B. Can be performed by calling the lemma() function on a synset in LNTK

  C. Reduces words of variant forms to their base forms based on a set of heuristics

  D. Reduces words of variant forms to their base forms based on a dictionary

  Correct Answer: D

• Question 20:

  What elements are needed to determine the time complexity of finding all the cliques of size k in social network analysis?

  A. Eigenvector centrality and betwenness

  B. Clique size and total number of nodes in the network

  C. Number of edges in the network and centrality measure of the cliques

  D. Clique size and betweenness centrality

  Correct Answer: B