Data Science Practice Exams
How well do you know the most in-demand data science and analytics tools and techniques? Test your data science skills with practice problems and exam questions.Discover a plethora of online exams that will test your current knowledge and ability to solve data science problems. Evaluate your skills online at no cost with SQL mock tests, Excel and NumPy exam questions, and more.
Whether you’re studying for an exam, preparing for an interview, or looking to check your knowledge level, our data science practice exams will ensure you’re up to the task. Timed to simulate a real-life experience, the data science test questions verify your theoretical understanding and technical skills.
Identify areas for improvement to enhance your skills, critical thinking, and problem-solving abilities—bringing you closer to achieving your goals.
Data Manipulation in SQL
SQL is one of the top programming languages that is used by top global companies like Microsoft, Spotify, Netflix, and Uber thanks to its amazing data retrieval, storage, and manipulation abilities. In this free Data Manipulation in SQL practice exam, we will be testing your knowledge on the SQL DML( Data Manipulation Language) statements, the WHERE clause, the CALL Statement, and SQL stored routines and procedures.
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SQL SELECT Statement
SQL is one of the most popular and in-demand programming languages, because of its intuitive syntax, ubiquitous presence in the business world, and ability to query data and perform analysis. Therefore, possessing SQL skills will give you a significant career advantage in the modern data-driven workforce. Test your knowledge in the basics of SQL with this free SQL SELECT Statement practice exam designed by 365 Data Science instructor Martin Ganchev. These set of SQL questions will test your knowledge on creating databases, SQL Constraints, and the SQL Select Query by giving you a free .sql file containing company data, to work with.
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For Loops in Python
In this free For Loops in Python practice exam by Python expert and instructor Giles McMullen-Klein, you have just started working as a junior software engineer at Challenger. Your job is to improve the automatization of the supply and distribution processes by using the Python programming language. These Python practice problems are going to test your coding abilities as you are asked to help the company with implementing for-loops, executing conditional statements, and estimating daily sales of certain products.
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Data Visualization in Middle-Earth
If you have ever wanted to use your data visualization skills for a nobler cause that does not involve revenue growth, then this free Data Visualization in Middle-Earth practice exam, by instructor Elitsa Kaloyanova, is for you. As the faith of Middle Earth is entrusted into your hands, you are required to use your data visualization and interpretation skills in Excel to answer these data visualization quiz questions and save the magic lands from destruction.
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Interpreting Data
The free Interpreting Data practice exam by top business executive and data enthusiast Oliver Maugain who has had a prolific career in the financial, advertising, and chemical industry. His goal is to help students master the language of data by personally creating this set of data literacy exercises that are meant to put your data interpretation skills to the test, as you are asked to perform various fundamental analyses techniques on a set of real estate sales data.
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Reading Data
These free Reading Data test questions were carefully crafted by top data culturist Oliver Maugain- Decision Intelligence Manager at a major European retailer who supports the organization in making better and faster decisions using data. The Reading Data practice exam is going to put your data description ability to the test as you are asked to describe the basic characteristics of a travel questionnaire- like the standard deviation, median and mode of the dataset.
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Using Data
This free practice exam on Using Data designed by 365 Data Science collaborator Oliver Maugain- top-level executive at a major European retail brand and a passionate data literacy teacher who wants to popularize the language of data. The data literacy assessment exam contains data literacy questions which are going to test your comprehension on how data is being used and the different machine learning and business analytics techniques.
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Understanding Data
This set of data literacy test questions were carefully crafted by top data culturist Oliver Maugain- Decision Intelligence Manager at a major European retailer who supports the organization in making better and faster decisions using data. The Data Literacy Intro practice exam contains 6 data literacy questions which are going to quiz you on data terminology, different types of data, different data storage systems and the technical tools required to analyze data.
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Strings & Conditionals in Python
The free Strings & Conditionals practice exam is made by famous YouTube Python Programmer and teacher Giles McMullen-Klein. In this practice case, you are a first year Software Engineer who is taking his end-of-year exam, where you are required to use the relevant Python techniques to pass. This set of Python programming practice questions is going to test your foundations in printing functions, conditional expression execution and indexing in string slicing.
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Intro to Stacks and Matplotlib Visualization
In this free Intro to Stacks and Matplotlib Visualization practice exam by Oxford physics graduate and experienced Python programmer Giles McMullen-Klein, you are the software engineer for a scientific research agency. Your task is to conduct research on the relationship between innovative eye-tracking technology and voting behavior in the USA, therefore these Python practice exercises are going to test your coding skills and ability to visually represent your conclusions in matplotlib.
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Files and Functions in Python
Prominent figure in the online Python community and established programming teacher Giles McMullen-Klein created this free practice exam on Files and Functions in Python where you are working as an app developer for sports startup company. The success of the project depends on your Python skills; therefore, these Python practice test questions are going to quiz you on Python code writing efficiency, file handling, dictionary functions and object creation.
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Data Science Interview Process
According to Senior Data Scientist Ken Jee Less than 5% of data scientist job applicants successfully land a job. Most of the time, the main reason for this low success rate is the applicant’s misrepresentation of their skills and not their lack of qualifications, which is why in this free Data Science Interview Process practice exam you are going to be tested on the methodology behind successfully passing the recruitment process- the phone interview, the take home test and the in-person interview.
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Data Science Project Portfolio
Senior data scientist and data influencer Ken Jee created this free Data Science Project Portfolio practice exam that goes over the case of Caroline - statistics graduate who has started her job searching journey in the fields of data science. This set of data science career questions are going to test your knowledge on how to differentiate yourself from the sea of other applicants.
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AI & Data Product Deployment
Danielle The’- expert AI Product Manager at Instagram and ambitious Machine Learning advocate, has created this free Product Management for AI & Data Science practice exam that is going to test your nuanced understanding of the different AI product deployment methods and the monitoring techniques involved in the post -deployment process - like selecting feedback metrics and implementing feedback loops.
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Frameworks for AI & Data Products
In this free Frameworks for AI & Data Products practice exam you are a product manager who enrolled in a workshop with the intent of learning how to adopt a more strategic perspective on AI product management. These set of problems challenge your expertise in AI Product Management by asking you to choose the appropriate ideation technique, evaluate the performance of a model and software development framework, and decide when the model is ready for deployment.
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Business Strategy and UI for AI & Data Science
This free Product Management for AI & Data Science practice exam is made by Instagram Senior Product Manager and tech enthusiast Danielle The’, whose hopes are to simplify the digital world to businesses and individuals alike. These Product Management for AI & Data Science Problems are going to test your knowledge on key technical concepts, hypothesis formation and testing, and the AI methodologies in creating memorable user experience.
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Business Analytics Lifecycle
This free practice exam on Business Analytics Lifecycle by business analytics veteran Randy Rosseel will test your understanding of a successful step-by-step implementation of the six stages of the analytics lifecycle. The Business Analytics Test comes with an Excel file of PMG’s financials- major European consumer goods company- where you are asked to put various analytics techniques in to practice.
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Maturity Stages in Business Analytics Practice
The free Maturity Stages in Business Analytics practice exam was carefully designed by seasoned business intelligence analyst Randy Rosseel -Finance Director at Coca Cola Enterprises and avid proponent of business analytics education. These business analytics exercises will require you to identify the key value drivers, choose the right metrics, and view holistically the stages of analytics for a major Australian coffee producer.
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End-to-End Business Analytics
The End-to-End Business Analytics Practice Exam was hand-made by experienced financial executive at Coca-Cola- Randy Rosseel. He enjoys sharing his expertise with students, teaching them the analytical capabilities required to drive business growth. Therefore, he created this set of Business Analytics Exercises that are meant to test how nuanced your understanding of end-to-end processes is and how they fit in the overall structure of a business.
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Data Visualization with Tableau
Head of 365 Data Science Course Creation- Elitsa Kaloyanova, brings you this free practice exam in Data Visualization with Tableau where you are asked to be the survey conductor for a top market researcher company. Based on the survey results, you are required to use Tableau to answer the data visualization practice questions related to the overall trends observed throughout the year and the factors behind them.
Learn MoreExplore our top data science practice exams, recommended by our students and expert team of instructors—free to download.
Introduction to Data Science Disciplines
The term “Data Science” dates back to the 1960s, to describe the emerging field of working with large amounts of data that drives organizational growth and decision-making. While the essence has remained the same, the data science disciplines have changed a lot over the past decades thanks to rapid technological advancements. In this free introduction to data science practice exam, you will test your understanding of the modern day data science disciplines and their role within an organization.
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Intrо to Machine Learning
State-of-the-art machine learning algorithms have opened a whole new realm of possibilities for businesses to optimize their processes and create new product/service features, that maximize competitive advantages. Used in recommendation systems, fraud detection, spam filtering, self-driving cars, to name a few, these advanced algorithms are only getting more popular by the day. Take this free machine learning practice exam and test your knowledge on supervised, unsupervised and reinforcement machine learning, and their applications.
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Excel Basics
Ever since its first release in 1985, Excel continues to be the most popular spreadsheet application to this day- with approximately 750 million users worldwide, thanks to its flexibility and ease of use. No matter if you are a data scientist or not, knowing how to use Excel will greatly improve and optimize your workflow. Therefore, in this free Excel Basics practice exam you are going to work with a dataset of a company in the Fast Moving Consumer Goods Sector as an aspiring data analyst and test your knowledge on basic Excel functions and shortcuts.
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Useful Tools in Excel
What Excel lacks in data visualization tools compared to Tableau, or computational power for analyzing big data compared to Python, it compensates with accessibility and flexibility. Excel allows you to quickly organize, visualize and perform mathematical functions on a set of data, without the need for any programming or statistical skills. Therefore, it is in your best interest to learn how to use the various Excel tools at your disposal. This practice exam is a good opportunity to test your excel knowledge in the text to column functions, excel macros, row manipulation and basic math formulas.
Learn MoreMost Popular Practice Exams
Explore our top data science practice exams, recommended by our students and expert team of instructors—free to download.
Introduction to Data Science Disciplines
The term “Data Science” dates back to the 1960s, to describe the emerging field of working with large amounts of data that drives organizational growth and decision-making. While the essence has remained the same, the data science disciplines have changed a lot over the past decades thanks to rapid technological advancements. In this free introduction to data science practice exam, you will test your understanding of the modern day data science disciplines and their role within an organization.
Learn MoreIntrо to Machine Learning
State-of-the-art machine learning algorithms have opened a whole new realm of possibilities for businesses to optimize their processes and create new product/service features, that maximize competitive advantages. Used in recommendation systems, fraud detection, spam filtering, self-driving cars, to name a few, these advanced algorithms are only getting more popular by the day. Take this free machine learning practice exam and test your knowledge on supervised, unsupervised and reinforcement machine learning, and their applications.
Learn MoreExcel Basics
Ever since its first release in 1985, Excel continues to be the most popular spreadsheet application to this day- with approximately 750 million users worldwide, thanks to its flexibility and ease of use. No matter if you are a data scientist or not, knowing how to use Excel will greatly improve and optimize your workflow. Therefore, in this free Excel Basics practice exam you are going to work with a dataset of a company in the Fast Moving Consumer Goods Sector as an aspiring data analyst and test your knowledge on basic Excel functions and shortcuts.
Learn MoreUseful Tools in Excel
What Excel lacks in data visualization tools compared to Tableau, or computational power for analyzing big data compared to Python, it compensates with accessibility and flexibility. Excel allows you to quickly organize, visualize and perform mathematical functions on a set of data, without the need for any programming or statistical skills. Therefore, it is in your best interest to learn how to use the various Excel tools at your disposal. This practice exam is a good opportunity to test your excel knowledge in the text to column functions, excel macros, row manipulation and basic math formulas.
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