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Exam DY0-001 topic 1 question 77 discussion

Actual exam question from CompTIA's DY0-001
Question #: 77
Topic #: 1
[All DY0-001 Questions]

A data scientist receives an update on a business case about a machine that has thousands of error codes. The data scientist creates the following summary statistics profile while reviewing the logs for each machine:

Which of the following is the most likely concern with respect to data design for model ingestion?

  • A. Sparse matrix
  • B. Granularity misalignment
  • C. Insufficient features
  • D. Multivariate outliers
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Suggested Answer: A 🗳️
by SuntzuLegacy at May 20, 2025, 12:02 a.m.

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SuntzuLegacy
1 month, 1 week ago
Selected Answer: A
Given 19,000 unique codes but only 7 per machine (on median), you’d end up with a massive number of columns (one per code) in which most entries would be zeros. This situation is a classic sparse matrix concern.
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