15 Data Science Practice Exams and Question Banks
We compared 15 Data Science courses currently listed on Udemy and edX, priced from $19.99 to $219.00. 1 comes from a named university or institution, including Harvard University. They are ordered by our CourseAsk score, which is built from how thoroughly each course describes what it teaches, whether it comes from a named institution, and how it compares on price — not from star ratings, which our course data does not include.
- Courses compared
- 15
- Price range
- $19.99 – $219.00
- Providers
- Udemy, edX
- Last updated
- 18 Sep 2026
How these 15 courses were chosen
Every course below is a real, currently listed course from Udemy, edX, matched to "data science" by our catalog and ordered by our CourseAsk score. Courses whose own title names the topic rank above those only tagged with it.
The grade on each entry scores how much the provider publishes about the course before you pay — the length and detail of the description, whether it lists learning outcomes and objectives — and whether a named university or institution stands behind it. A is fully documented and institution-backed; E is little more than a title and a price. Courses with almost nothing published are left ungraded rather than marked down, because an unknown course and a poor one are not the same thing.
There are no star ratings on this page — the course feeds we license do not include them, and we would rather leave a column out than fill it with a number we cannot stand behind. What we do have is price: these range from $19.99 to $219.00, as listed by the provider when we last updated the page.
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1
Python Practice Test: Data Science and Machine Learning
Boost your Python, data science, and machine learning skills with our comprehensive practice test. Perfect for beginners and professionals alike, this course helps you assess your proficiency in key areas.Key Topics:1. P...
$19.99listed price -
2
Data Science Practice Test for Interviews & Exams 2025
Are you preparing for a Data Science interview or a professional certification exam in 2025? Do you want to assess your knowledge and boost your confidence before the big day? This course — Data Science Practice Test for...
$29.99listed price -
3
Data Science Interview Questions & Practice Tests 2026
Preparing for a Data Science interview requires much more than learning algorithms or memorizing Python syntax. Modern interviews evaluate your ability to solve real business problems, explain machine learning concepts,...
$19.99listed price -
4
Practice Exams | Dell Data Science Optimize (D-AA-OP-23)
This course is designed for learners preparing for the Dell Data Science Optimize (D-AA-OP-23) certification exam who want realistic, scenario-based practice tests aligned with the exam objectives.The practice exams in t...
$19.99listed price -
5
1Z0-1110-25 OCI Data Science Professional Practice Tests
Prepare thoroughly for Oracle exam 1Z0-1110-25.This course provides a set of timed mock exams that reflect the style and difficulty of the Oracle Cloud Infrastructure 2025 Data Science Professional certification. Each te...
$19.99listed price -
6
1400+ Data Science Interview Questions Practice Exam Test
Are you preparing for your next AI Engineer, Data Scientist, or Machine Learning Engineer interview? Do you want to brush up on your skills and confidently tackle technical questions that span the breadth of data science...
$44.99listed price -
7
Data Science Certification Practice Test - Master Quiz
In this course, I have put together a list of important Data Science Interview Questions and answers for beginner, intermediate and experienced candidates. These questions are categorized for quick browsing before the in...
$49.99listed price -
8
Digital Humanities in Practice: From Research Questions to Results
Offered by Harvard University
Combine literary research with data science to find answers in unexpected ways. Learn basic coding tools to help save time and draw insights from thousands of digital documents at once.
$219.00listed price -
9
AWS Certified Machine Learning Specialty Practice Exams
AWS Certified Machine Learning Specialty Practice Exams Course Details and Comprehensive Preparation. Welcome to the ultimate, meticulously crafted resource designed to elevate your professional profile and empower your...
$29.99listed price -
10
CompTIA DataAI DY0-001 (V1) Practice Exam Prep *NEW*
CompTIA DataAI DY0-001 (V1) Performance-Based Questions (PBQs) are only available on our official websites, ExamsDigest, LabsDigest, GuidesDigest**Welcome to the CompTIA DataAI DY0-001 (V1) Certification Practice Exam Te...
$19.99listed price -
11
AWS Certified Machine Learning Specialty Full Practice Exam
UPDATED FOR 2026 — Realistic Questions, Deeper Explanations, Exam-Level DifficultyFeeling nervous about the AWS Certified Machine Learning – Specialty (MLS-C01) exam? You should be.This is widely considered one of the to...
$19.99listed price -
12
DP-100 Microsoft Azure Data Scientist Practice test 2025
Note: This course is designed for students who want to attain the "Microsoft Certified: Azure Data Scientist Associate" certificationThis practice test contains specially curated questions that will test your knowledge a...
$49.99listed price -
13
Certified Master Data Scientist Open Group Practice Exams
This comprehensive curriculum focuses exclusively on the Certified Master Data Scientist Open Group examination framework to ensure maximum readiness and confidence. Welcome to the ultimate preparation platform designed...
$29.99listed price -
14
Azure Data Scientist Associate DP-100 Practice Exams
Microsoft Certified Azure Data Scientist Associate DP-100 Practice Exams. Achieving a professional level in technical data science requires a profound technical understanding of technical experiment design, technical mod...
$29.99listed price -
15
Databricks Machine Learning Professional-Practice Exams 2026
he Databricks Machine Learning Professional certification is designed for practitioners who can build, scale, deploy, and operate machine learning solutions on the Databricks Lakehouse platform. This exam goes beyond bas...
$24.99listed price
Data Science Practice Exams and Question Banks compared
Prices shown are the provider's listed price when we last updated this page. Confirm on their site before enrolling.
What the prices here tell you
The 15 priced courses on this page run from $19.99 to $219.00, with the middle of the range around $29.99 — a spread of $199.01. That is a wide gap for one subject. A higher price on this page usually reflects who is behind the course rather than how much material it contains, so it is worth opening two or three at different price points and comparing their syllabus before deciding.
Who is behind these courses
These courses come from Udemy and edX. The platforms differ in how they sell: some charge once per course, others expect a subscription, and the listed price is not always what you pay at checkout after a promotion. 1 of these are produced by a named university or institution, including Harvard University — which usually means a fixed syllabus and a recognised certificate, rather than an individual instructor’s own course.
Courses versus exam preparation
15 of the entries here are built around a certification exam rather than teaching Data Science from scratch. They are the right choice only if you already know the material and want to pass a specific exam; if you are starting out, pick one of the taught courses first and come back to exam preparation afterwards.
Before you enrol
Open the provider’s own page and check three things this comparison cannot tell you: when the course was last updated, what the syllabus actually covers in its later sections, and what recent learners say. Prices shown here are the provider’s listed price when we last rebuilt this page on 18 September 2026 — they change often, and a promotion can move them substantially. We earn a commission if you enrol through our links, which costs you nothing and never affects the order courses appear in.