How to use the Flask MCQ Quiz
- 1. Choose the length10 random Flask questions, or all 25. Untick shuffle for a fixed order.
- 2. AnswerPick an option and see straight away whether it's right, with a one-line reason.
- 3. See your scoreFinish to get your score and a review of every question with the correct answer.
What the quiz covers
Flask is popular for small web apps, APIs and machine learning demos, so it shows up in both Python and data science interviews. The 25 questions are grouped into 13 areas, shown above each question: Basics, Routing, Requests, Templates, Responses, Sessions, Structure, Extensions, Security, Deployment, Core, Testing, Tooling.
A sample question explained
"What is the session object based on by default?" The answer is A signed cookie, which requires SECRET_KEY. Users can read it but not change it without the key. Since users can read session cookies, don't store secrets in them.
More questions you'll meet
A few of the other Flask questions in the bank:
- Which decorator maps a URL to a function?
- Which object holds form data?
- Where should static files like CSS go by default?
- How do you return JSON?
- What are Blueprints for?
- How do you return a 404?
- What does the application factory pattern do?
Study tips
- Write a tiny API with two routes and a form while revising.
- Learn why the development server isn't for production; it's a common interview question.
- Aim for at least 20 out of 25 on two separate attempts before you treat Flask as revised; one lucky score can hide gaps.
Questions and options are shuffled on each attempt, so a retake is a fresh test. The Flask questions were written by Uncodemy for practice; they aren't copied from any exam or company test.
Frequently asked questions
Which Flask version?
Flask 2.x and 3.x.
Flask or FastAPI?
Both are popular for APIs; the quiz covers Flask only.
Is the Flask MCQ quiz free?
Yes. Every question in the Flask MCQ quiz can be answered without signing up. When you finish your first round, we ask once for your name and WhatsApp number to show your score; after that the Flask MCQ quiz and every other Uncodemy tool open straight away.