MLS-C01 Exploratory Data Analysis Practice Question
Which TWO AWS services can be used to visualize data distributions as part of exploratory data analysis? (Select TWO.)
⚠ Common exam trap
The MLS-C01 exam often tests the misconception that AWS Glue or Athena can visualize data distributions because they are used in data preparation or querying, but neither provides native charting or plotting capabilities—they only return raw data or tabular results.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Amazon QuickSight
Amazon QuickSight is a cloud-native business intelligence service that can visualize data distributions through histograms, box plots, scatter plots, and other chart types, making it suitable for exploratory data analysis. Amazon SageMaker Data Wrangler provides a visual interface to create data distribution charts (e.g., histograms, bar charts) directly within the data preparation workflow, enabling quick inspection of feature distributions before model building.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
AWS Glue
Why it's wrong here
Glue is for ETL, not visualization.
- ✓
Amazon QuickSight
Why this is correct
QuickSight provides interactive dashboards and visualizations.
- ✗
Amazon Athena
Why it's wrong here
Athena is a query engine, not a visualization tool.
- ✗
Amazon Comprehend
Why it's wrong here
Comprehend is for NLP, not general visualization.
- ✓
Amazon SageMaker Data Wrangler
Why this is correct
Data Wrangler provides data profiling and visualizations.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This MLS-C01 practice question is part of Courseiva's free Amazon Web Services certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the MLS-C01 exam.