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AWS Machine Learning Study Roadmap (Retired Exam)

MLS-C01 · 14-week plan · Free

Last updated: September 29, 2026

Retired exam. AWS retired the Machine Learning – Specialty exam (MLS-C01); the last test day was March 31, 2026. AWS names ML Engineer – Associate (MLA-C01) as an alternative. See the AWS certification retirement notice.
Progress:
0/14

Domain Weight Distribution

D1: Data Engineering
20%
D2: Exploratory Data Analysis
24%
D3: Modeling
36%
D4: Machine Learning Implementation and Operations
20%

Week-by-Week Study Plan

Week 1

Domain 1: Data Repositories (S3 data lakes, Redshift, RDS, DynamoDB for ML pipelines)

Week 2

Domain 1: Data Ingestion (Kinesis Data Streams/Firehose, Glue ETL, Data Pipeline, batch vs streaming)

Week 3

Domain 1: Data Transformation (Glue DataBrew, EMR Spark, Athena, feature engineering techniques)

Week 4

Domain 2: Data Sanitization (Missing values, outliers, normalization, encoding categorical variables)

Week 5

Domain 2: Feature Engineering. Feature selection, dimensionality reduction (PCA), data visualization

Week 6

Domain 2: Data Analysis (Statistical analysis, correlation, distribution analysis, SageMaker Data Wrangler)

Week 7

Domain 3: ML Frameworks (SageMaker built-in algorithms, XGBoost, Linear Learner, image classification)

Week 8

Domain 3: Model Training (Hyperparameter tuning, training jobs, distributed training, Spot instances)

Week 9

Domain 3: Evaluation (Confusion matrix, precision/recall, F1 score, AUC-ROC, overfitting/underfitting)

Week 10

Domain 4: SageMaker Endpoints (Real-time inference, batch transform, multi-model endpoints, auto-scaling)

Week 11

Domain 4: MLOps (SageMaker Pipelines, Model Registry, Model Monitor, A/B testing, CI/CD for ML)

Week 12

Domain 4: Security & Cost (VPC configs, KMS encryption, IAM roles, Spot training, instance selection)

Week 13

Full Review: Practice exams, SageMaker hands-on labs, Algorithm review, Exam logistics

Week 14

Final Review: Weak areas deep-dive, Full-length practice tests, Time management strategies

Free Resources

AWS Skill Builder, AWS Docs

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