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Free AWS Certified Machine Learning - Specialty (MLS-C01) Exam Questions and Answers

AWS Certified Machine Learning - Specialty (MLS-C01) is exam MLS-C01, part of AWS Certification from Amazon Web Services. AWS codes take the form ROLE-Cnn, where the letters name the role and tier and the C-number is the syllabus revision — so SAA-C03 is the third revision of Solutions Architect Associate. Exams are multiple choice and multiple response through Pearson VUE, scored on a 100 to 1000 scale, with the pass mark set by tier: 700 Foundational, 720 Associate, 750 Professional and Specialty.

Candidates comparing MLS-C01 exam dumps, ExamTopics and other MLS-C01 practice tests use this page for the answers and explanations behind each question. Download the free MLS-C01 PDF, then sit the timed MLS-C01 exam simulation before booking with Amazon.

Last updated: September 27, 2026

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MLS-C01
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Question #1

A Machine Learning Specialist at a company sensitive to security is preparing a dataset for model training. The dataset is stored in Amazon S3 and contains Personally Identifiable Information (Pll). The dataset: * Must be accessible from a VPC only. * Must not traverse the public internet. How can these requirements be satisfied?

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FAQ

Learn More: https://aws.amazon.com/certification/

Q1: Is the AWS Certified Machine Learning - Specialty (MLS-C01) exam retired?
A: Yes. AWS set March 31, 2026 as the final day to take the MLS-C01 exam, so as of October 2026 it is no longer available. AWS points candidates to the AWS Certified Machine Learning Engineer - Associate as its current machine learning certification; existing MLS-C01 certifications stay valid for their three-year term.
Q2: How much did the AWS Machine Learning - Specialty exam cost?
A: The exam fee was 300 USD per attempt. AWS offers a 50% discount voucher on your next exam after you earn any AWS certification.
Q3: How many questions were on the MLS-C01 exam and how long was it?
A: The real exam had 65 questions, of which 50 were scored and 15 were unscored, and you had 180 minutes. Questions were multiple choice (one correct answer out of four) or multiple response (two or more correct answers out of five or more).
Q4: What was the passing score for the MLS-C01 exam?
A: Results were reported as a scaled score from 100 to 1,000 and the minimum passing score was 750. Scoring was compensatory, so you did not need to pass each domain individually.
Q5: What domains did the MLS-C01 exam cover and how were they weighted?
A: The exam guide lists four domains: Data Engineering (20%), Exploratory Data Analysis (24%), Modeling (36%), and Machine Learning Implementation and Operations (20%).
Q6: What experience did AWS recommend for the Machine Learning - Specialty exam?
A: AWS recommended two or more years of experience developing, architecting, and running machine learning or deep learning workloads in the AWS Cloud. There were no required prerequisite certifications.
Q7: What languages and delivery options were available for the MLS-C01 exam?
A: The exam was offered in English, Japanese, Korean, and Simplified Chinese, delivered through Pearson VUE either at a testing center or online with a proctor.
Q8: What was the retake policy for the MLS-C01 exam?
A: If you failed, AWS required a 14-calendar-day wait before retaking, with no limit on the number of attempts and the full registration fee due for each attempt. Since the exam retired on March 31, 2026, retakes are no longer possible.
Q9: What is the AWS Certified Machine Learning - Specialty (MLS-C01) exam?
A: AWS Certified Machine Learning - Specialty (MLS-C01) is a Amazon certification exam. Judging by the questions in our bank, it concentrates on specialist, amazon, sagemaker, learning and dataset.
Q10: What topics does the AWS Certified Machine Learning - Specialty (MLS-C01) exam cover?
A: Questions in our AWS Certified Machine Learning - Specialty (MLS-C01) bank cluster around specialist, amazon, sagemaker, learning, dataset, scientist, notebook and neural. Working through the full set is the quickest way to find which of these you are weakest on.
Q11: How should I prepare for AWS Certified Machine Learning - Specialty (MLS-C01)?
A: Work through the AWS Certified Machine Learning - Specialty (MLS-C01) practice questions here, checking your answer on each one, then sit the practice test to rehearse the exam under timed conditions before the real thing.
Q12: Are these real AWS Certified Machine Learning - Specialty (MLS-C01) exam questions?
A: They are drawn from officially released past questions and from community members who have sat AWS Certified Machine Learning - Specialty (MLS-C01). Answers are verified and updated weekly.
Q13: Where do I register for the AWS Certified Machine Learning - Specialty (MLS-C01) exam?
A: Register through Amazon directly at https://aws.amazon.com/certification/. Exampractice is not affiliated with Amazon and does not administer the exam.
Q14: Is there a free AWS Certified Machine Learning - Specialty (MLS-C01) sample?
A: Yes. Every AWS Certified Machine Learning - Specialty (MLS-C01) page shows a free sample of real questions. Upgrading opens the full bank and the practice test.
Q15: What are Amazon Certification Exams?
A: Amazon Certification Exams validate your expertise in Amazon Web Services (AWS), covering a range of cloud computing skills, including architecture, development, operations, and data analytics. These certifications demonstrate your proficiency in designing, deploying, and managing applications on the AWS platform.
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A: Amazon Certification enhances your professional credibility, showcasing your skills and knowledge in AWS services. This can lead to better job opportunities, higher salaries, and career advancement in the cloud computing and IT industry.
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Q19: What types of Amazon Certification Exams are available?
A: Amazon offers various certification paths, including Foundational Level (AWS Certified Cloud Practitioner), Associate Level (AWS Certified Solutions Architect, AWS Certified Developer, AWS Certified SysOps Administrator), Professional Level (AWS Certified Solutions Architect – Professional, AWS Certified DevOps Engineer – Professional), and Specialty Certifications (Security, Big Data, Advanced Networking, and more).
Q20: How do I prepare for Amazon Certification Exams?
A: Preparation can include official AWS training courses, study guides, practice exams, online tutorials, and hands-on experience with AWS services and solutions.
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Q23: Are there any prerequisites for Amazon Certification Exams?
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