Free D-AA-OP-23 – Data Science Practice Test Question

Select an option, then click Submit answer.

• ○

  Logistic function applied to a linear combination of the input and outcome variables

• ○

  Linear regression applied to a combination of input variables

• ○

  Linear regression applied to a combination of input and outcome variables

• ○

  Logistic function applied to a linear combination of the input variables
  

Select an option, then click Submit answer.

• ○

  Unable to run map -> reduce execution plans

• ○

  Supports applications written in Python, Java, and Scala

• ○

  Less efficient processing small files than Hadoop MapReduce

• ○

  Supports workflows that can return to previous work steps
  

Select an option, then click Submit answer.

• ○

  0

• ○

  5

• ○

  10

• ○

  15
  
  

Select an option, then click Submit answer.

• ○

  Degree

• ○

  Closeness

• ○

  Betweenness

• ○

  PageRank
  
  

Select an option, then click Submit answer.

• ○

  Precision0.95; Recall: 0704; F1-score: 0.809

• ○

  Precision 0.613, Recall: 0.95, F1-score: 0.745

• ○

  Precision 0.704, Recall: 0.95; F1-score: 0.809

• ○

  Precision 0.95; Recall: 0.613; F1-score: 0.745
  
  
  

Select an option, then click Submit answer.

• ○

  Uses a rainbow-like color map for distinction of categories

• ○

  Uses a rainbow-like color map for ease of display and printing

• ○

  Uses perceptually ordinal colors with just-noticeable increments

• ○

  Uses perceptually ordinal colors with linear, perceptual increments
  
  
  

Select an option, then click Submit answer.

• ○

  Use self-explanatory colors so a legend is unnecessary

• ○

  Maximize use of color to make a more lasting impression

• ○

  Use high contrast colors such as red and blue

• ○

  Minimize use of color except for emphasis
  
  
  

Select an option, then click Submit answer.

• ○

  MLib

• ○

  NLTK

• ○

  GraphX

• ○

  Spark SQL
  
  
  

Select an option, then click Submit answer.

• ○

  45

• ○

  90

• ○

  100

• ○

  9
  
  
  

Select an option, then click Submit answer.

• ○

  Creating functionality outside of what is provided by the built-in functions

• ○

  Providing Functional access to user-defined data in HDFS

• ○

  Providing advanced analytics to Hadoop

• ○

  Providing an interface from Pig to Microsoft Excel for easier data manipulation