AWS Certified Machine Learning - Specialty Questions and Answers
200 questions organized by topic with detailed explanations
AWS
MLS-C01
200 questions
4 topics
Updated May 2026Data Engineering
40 questions12 easy20 medium8 hard~20% of exam
A company needs to create a large labeled image dataset for training an object detection model. They want to use a combi...A machine learning team is training a large image classification model on Amazon SageMaker using Pipe input mode. Which ...A team has raw data files in various formats landing in an Amazon S3 bucket daily. They want an automated way to populat...
Exploratory Data Analysis
48 questions13 easy24 medium11 hard~24% of exam
A data science team is building a demand forecasting model using a dataset with daily sales records. They want to captur...A binary classification model for fraud detection is trained on a dataset where 99% of records are non-fraud and 1% are ...A training dataset for a regression model contains some records where a continuous feature has values that are more than...
A linear regression model has many features, and the data scientist suspects most of them are irrelevant. They want a re...A machine learning engineer wants to automatically find the optimal combination of hyperparameters such as learning rate...A classification model achieves 98% accuracy on the training set but only 62% accuracy on the validation set. What probl...
Machine Learning Implementation and Operations
43 questions8 easy21 medium14 hard~20% of exam
An ML team wants to implement an end-to-end MLOps pipeline that automatically triggers data preprocessing, model trainin...A company wants to gradually roll out a new recommendation model (Model B) while keeping the existing model (Model A) in...A team has trained a PyTorch computer vision model on SageMaker and wants to deploy it on an embedded ARM processor at t...
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