Dell E20-065 - Advanced Analytics Specialist Exam for Data Scientists Exam

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Total 66 questions

What is an ideal use case for HDFS?

  • A. Storing files that are updated frequently
  • B. Storing files that are written once and read many times
  • C. Storing results between Map steps and Reduce steps
  • D. Storing application files in memory


Answer : B

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


Answer : B

What is a characteristic of the trigram language model?

  • A. Based on the second-order Markov process
  • B. Equivalent to trigram hidden Markov models
  • C. Uses smoothing to reduce the high dimensionality in text
  • D. Can be used for part-of -speech tagging


Answer : A

How does Latent Dinchlet Allocation (LDA) interpret a document?

  • A. As a single-predefined topic
  • B. As a mixture of pre-defined topics
  • C. As having a mixture of sentiments
  • D. As having a single pre-defined sentiment


Answer : B

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

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


Answer : A

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Total 66 questions