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AWS Machine Learning Certification

MLS-C01 · 4 domains

Last updated: March 31, 2026

Exam Syllabus & Domains

The AWS Machine Learning certification exam covers the following domains. Focus your training time proportionally to each domain's weight.

Domain 1 20%

Data Engineering

  • 1.1 Create data repositories for machine learning
  • 1.2 Identify and implement data ingestion solutions
  • 1.3 Identify and implement data transformation solutions
S3 Data Lakes and Lake FormationKinesis Data Streams vs FirehoseAWS Glue ETL Jobs and CrawlersGlue Data CatalogEMR with Spark for Large-Scale ProcessingAthena for Ad-Hoc QueryingData Pipeline OrchestrationBatch vs Real-Time IngestionData Partitioning StrategiesParquet and ORC File Formats
Domain 2 24%

Exploratory Data Analysis

  • 2.1 Sanitize and prepare data for modeling
  • 2.2 Perform feature engineering
  • 2.3 Analyze and visualize data for machine learning
  • 2.4 Select appropriate statistical methods for data analysis
Handling Missing Data (Imputation Strategies)Outlier Detection and TreatmentOne-Hot Encoding vs Label EncodingNormalization vs StandardizationPrincipal Component Analysis (PCA)t-SNE for VisualizationCorrelation AnalysisClass Imbalance (SMOTE, Oversampling)SageMaker Data WranglerGround Truth Labeling
Domain 3 36%

Modeling

  • 3.1 Frame business problems as machine learning problems
  • 3.2 Select the appropriate model for a given problem
  • 3.3 Train machine learning models
  • 3.4 Perform hyperparameter optimization
  • 3.5 Evaluate machine learning models
SageMaker Built-In Algorithms (XGBoost, Linear Learner, KNN)Image Classification and Object DetectionSequence-to-Sequence (Seq2Seq) ModelsBlazingText and Word2VecRandom Cut Forest (Anomaly Detection)Hyperparameter Tuning JobsConfusion Matrix, Precision, Recall, F1AUC-ROC CurvesBias-Variance TradeoffRegularization (L1/L2)
Domain 4 20%

Machine Learning Implementation and Operations

  • 4.1 Build ML solutions for performance, availability, scalability, resiliency, and fault tolerance
  • 4.2 Recommend and implement appropriate ML services and features for a given problem
  • 4.3 Apply security practices to ML solutions
SageMaker Real-Time EndpointsBatch Transform JobsMulti-Model EndpointsSageMaker Model Monitor (Data Drift)SageMaker Pipelines (MLOps)Model Registry and VersioningA/B Testing with Production VariantsAuto-Scaling Inference EndpointsSageMaker Neo (Model Compilation)Inference Recommender

Where to Focus Your Study Time

Domains with higher weight have more exam questions — allocate your study hours accordingly.

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

Study Tips

Free Study Resources

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Study Roadmap

Week-by-week study plan with free resources

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Study Tracker

Track objective completion with progress dashboard

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Cost Calculator

Total cost breakdown and ROI analysis

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Practice Quiz

Test your knowledge with free practice questions

Practice Quiz

Test your knowledge before the exam with our free practice quiz.

Take the AWS Machine Learning Practice Quiz

Get the AWS Machine Learning Study Planner

Fillable PDF with 14-week schedule, domain trackers, flashcard templates, progress tracking, and quick reference sheets. Available in Standard, ADHD-Friendly, Dark Mode, and 4-Format Bundle.

Get the Study Planner — $5.99

Also available as a 4-Format Bundle for $15.99

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Free Training Resources

Use these free tools to support your AWS Machine Learning certification training:

Frequently Asked Questions

What is the AWS Machine Learning certification?

The AWS Machine Learning (MLS-C01) is a professional IT certification that validates your knowledge and skills in the exam domains covered. It is recognized globally by employers and is a valuable credential for career advancement in cybersecurity and IT.

What does the AWS Machine Learning certification syllabus cover?

The AWS Machine Learning exam syllabus covers 4 domains. Each domain is weighted differently, so focus your training on higher-weighted domains first. Review the complete domain breakdown above for objectives and key concepts.

How should I study for AWS Machine Learning?

Create a structured study plan covering all exam domains, use practice tests to identify weak areas, and review key concepts regularly. A fillable study planner can help you organize your training with weekly schedules and progress tracking.

How long does it take to prepare for AWS Machine Learning?

Preparation time varies by experience level. Most candidates spend 8-12 weeks of dedicated training. Using a structured study planner with domain-by-domain breakdown helps ensure you cover all certification objectives efficiently.