OUTSTANDING CHARACTERISTICS OF EMC DEA-7TT2 PRACTICE MATERIAL FORMATS

Outstanding Characteristics of EMC DEA-7TT2 Practice Material Formats

Outstanding Characteristics of EMC DEA-7TT2 Practice Material Formats

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EMC Associate - Data Science and Big Data Analytics v2 Exam Sample Questions (Q170-Q175):

NEW QUESTION # 170
What activities occur during the discovery phase of the data analytics lifecycle?
Response:

  • A. Deploy and monitor model performance
  • B. Interview project sponsor and stakeholders
  • C. Build training and test datasets
  • D. Perform ETL and data exploration

Answer: B


NEW QUESTION # 171
A data scientist is asked to implement an article recommendation feature for an online magazine. The magazine does not want to use client tracking technologies such as cookies or reading history.
Therefore, only the style and subject matter of the current article is available for making recommendations. All of the magazine's articles are stored in a database in a format suitable for analytics.
Which method should the data scientist try first?
Response:

  • A. Naive Bayesian
  • B. K Means Clustering
  • C. Logistic Regression
  • D. Association Rules

Answer: B


NEW QUESTION # 172
Which data asset is an example of semi-structured data?
Response:

  • A. News article
  • B. Webserver log
  • C. XML data file
  • D. Database table

Answer: C


NEW QUESTION # 173
When is a Wilcoxon Rank-Sum test used?
Response:

  • A. When the data cannot be easily sorted
  • B. When the data can be easily sorted
  • C. When the populations represent the sums of other values
  • D. When an assumption about the distribution of the populations cannot be made

Answer: D


NEW QUESTION # 174
What does a leaf node represent in a decision tree?
Response:

  • A. Decision point on a variable
  • B. Assigned class label
  • C. Outcome of a test on a variable
  • D. Root of the decision tree

Answer: B


NEW QUESTION # 175
......

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