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Exam DY0-001 topic 1 question 34 discussion

Actual exam question from CompTIA's DY0-001
Question #: 34
Topic #: 1
[All DY0-001 Questions]

A data scientist is clustering a data set but does not want to specify the number of clusters present. Which of the following algorithms should the data scientist use?

  • A. DBSCAN
  • B. k-nearest neighbors
  • C. k-means
  • D. Logistic regression
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Suggested Answer: A 🗳️
by SuntzuLegacy at May 19, 2025, 9:16 a.m.

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SuntzuLegacy
1 month, 1 week ago
Selected Answer: A
A. DBSCAN is the correct choice. Unlike k-means (which requires specifying the number of clusters), DBSCAN (Density-Based Spatial Clustering of Applications with Noise) determines the number of clusters based on data density, so you do not need to specify the number of clusters in advance.
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