EMC E20-065 Online Practice Questions and Exam Preparation

EMC E20-065 Online Questions & Answers

• Question 11:

  What best describes tokenization?

  A. Adding lexical relations to the raw text
  B. Converting text into the list of terms
  C. Converting text into a list of unique terms
  D. Reducing variant forms of tokens to their base forms
  B. Converting text into the list of terms

• Question 12:

  Which graph structure would best model the relationship between job seekers and employers?

  A. Bipartite
  B. Weighted
  C. Directed acyclic
  D. Ranked
  A. Bipartite

• Question 13:

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

  A. Edge list
  B. Adjacency matrix
  C. Eigenvector centrality
  D. Adjacency list
  B. Adjacency matrix

• Question 14:

  What is a property of a good color model for ordinal data?

  A. Uses a rainbow-like color map for distinction of categories
  B. Uses a rainbow-like color map for ease of display and printing
  C. Uses perceptually ordinal colors with just-noticeable increments
  D. Uses perceptually ordinal colors with linear, perceptual increments
  D. Uses perceptually ordinal colors with linear, perceptual increments

• Question 15:

  Which is NOT a tenet of the Apache Pig Philosophy?

  A. It must be easily commanded
  B. Any type of data can be processed
  C. Hadoop is required
  D. Data should be processed quickly
  D. Data should be processed quickly

• Question 16:

  Given an input vector of features, a Random Forests model performs a classification task and ends in a tie. How does the model handle this outcome?

  A. The model will be rebuilt
  B. A winner is chosen at random
  C. The tree that caused the tie is discarded
  D. One more tree is added to the forest
  B. A winner is chosen at random

• Question 17:

  A simul-ation to compare two different sales models yields different results for the same set of input variables in different runs. What is the likely cause?

  A. bit operating system was used
  B. The same number of trials was used.
  C. A linear congruenlial generator (LCG) was used for pseudo-random number generation.
  D. Different seeds forthe random number generator were used
  C. A linear congruenlial generator (LCG) was used for pseudo-random number generation.

• Question 18:

  Which Hadoop Files System shell command copies data from a local file system into HDFS?

  A. rm
  B. cp
  C. put
  D. get
  C. put

• Question 19:

  What advantage does replication provide while storing a file in HDFS?

  A. Data protection and scheduling flexibility
  B. Elimination of requirement for a combiner process
  C. Elimination of requirement for Shuffle and Sort process
  D. Memory optimization and minimizing tasks to run
  A. Data protection and scheduling flexibility

• Question 20:

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

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