CompTIA DataX (DY0-001) — Question 35

Which of the following describes the appropriate use case for PCA?

Answer options

• A. Dimensionality reduction
• B. Classification
• C. Regression
• D. Recommendation

Correct answer: A

Explanation

PCA is specifically designed for dimensionality reduction, allowing for the simplification of data by reducing the number of features while preserving variance. The other options, including classification, regression, and recommendation, involve different techniques and methodologies that do not focus on reducing dimensions in datasets.