AWS Certified Machine Learning - Specialty

MLS-C01

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Question Types
Multiple choiceFill in the blankDiagramsCase studies

What's Included

216
Practice Questions
1
Exam Versions
Languages
Translation Beta
Mar 31, 2026
Retired
Sep 17, 2021Last Updated

Complete Exam Package

216 MLS-C01 practice questions with detailed explanations

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Exam Details

Duration170 min
Passing Score750
LevelSpecialty
TestingPearson VUE
Valid For3 years
Release DateMar 28, 2019
Exam Cost$300

What topics are on the MLS-C01 exam?

1

Data Engineering 20%

1.1
Create data repositories for ML
2 subtopics
1.1.1Identify data sources
1.1.2Determine storage mediums
Learning Objectives
  • Identify appropriate data sources for machine learning workloads
  • Determine the most suitable storage medium for different types of ML data
1.2
Identify and implement a data ingestion solution
3 subtopics
1.2.1Data job styles and types
1.2.2Orchestrate data ingestion pipelines
1.2.3Schedule jobs
Learning Objectives
  • Differentiate between batch and streaming data ingestion
  • Design and implement data ingestion pipelines using AWS services
  • Configure job scheduling for ML data workflows
1.3
Identify and implement a data transformation solution
2 subtopics
1.3.1Transform data in transit (ETL)
1.3.2Handle ML-specific data using MapReduce
Learning Objectives
  • Design and implement ETL pipelines for ML data
  • Apply MapReduce patterns to process large-scale ML datasets
Domain Hands-on Skills
Setting up data lakes in S3Configuring AWS Glue crawlers and jobsCreating Kinesis data streams for real-time ingestionImplementing EMR clusters for distributed data processing
Common Mistakes to Avoid
  • Not considering data volume when choosing storage
  • Using batch processing when streaming is required
  • Overlooking data partitioning for performance
2

Exploratory Data Analysis 24%

3

Modeling 36%

4

Machine Learning Implementation and Operations 20%

How do I earn the AWS Certified Machine Learning - Specialty certification?

Certification Maintenance

  • Recertification Options:
    Retake MLS-C01 before March 31, 2026 to extend certification for another 3 yearsAfter March 31, 2026, no recertification path available for MLS-C01Consider earning MLA-C01 or other AWS certifications for continued credential portfolio

How do I study for the MLS-C01 Exam?

Practice the AWS Certified Machine Learning - Specialty with our Exam Simulator

Free practice questions, exam guides, and real exam‑style explanations in our Planet Cert simulator.

Community Resources

AWS Training on TwitchLive StreamingAWS Machine Learning BlogBlogAWS re:Post - Machine LearningCommunity Forum

What's changed on this exam?

Status: RETIRING
Retired: 2026-03-31

Technology Coverage

Amazon BedrockMultiple foundation models

Increasingly relevant for Domain 3 (Modeling) - understanding when to use foundation models vs custom models

Released: 2024-11
SageMaker Unified StudioPreview

May appear in future exam updates - unified ML development environment

Released: 2024-11
SageMaker HyperPodEnhanced resilience

Relevant for Domain 3 (Training) and Domain 4 (Implementation) - distributed training and fault tolerance

Released: 2024-10
SageMaker Model MonitorContinuous updates

Critical for Domain 4 (MLOps) - model drift detection and monitoring

Released: 2024
Amazon QExpanded capabilities

Relevant for Domain 4 (ML Services) - understanding AWS AI application services

Released: 2024-08

Industry Trends

Who should take this exam?

Recommended Experience

  • 2+ years of experience developing, architecting, and running ML/deep learning workloads in the AWS Cloud
  • Ability to express the intuition behind basic ML algorithms
  • Experience performing basic hyperparameter optimization
  • Experience with ML and deep learning frameworks
  • Ability to follow model-training best practices
  • Ability to follow deployment and operational best practices

Experience Level: Advanced

How do I register & what's the exam fee?

Exam Cost$300 USD
Testing CentersPearson VUE
Online ProctoringAvailable

How long is the certification valid?

Valid For3 years
Recertification
  • Retake the MLS-C01 exam before March 31, 2026
  • After retirement, certification remains valid for 3 years from date earned
  • No recertification path after March 31, 2026

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