Flask vs Django decision - Practice Questions

Challenge - 5 Problems

🧠 Conceptual

intermediate

Choosing Flask or Django for a small project

You want to build a simple web app with a few pages and minimal database use. Which framework is better suited for quick setup and flexibility?

A Flask, because it is lightweight and lets you add only what you need.

B Django, because it has many built-in features and enforces structure.

C Django, because it requires less coding for small projects.

D Flask, because it automatically generates admin interfaces.

💡 Hint

Think about which framework is minimal and flexible for small apps.

Flask is lightweight and flexible, ideal for small projects where you want to add only needed features. Django is more heavyweight with many built-in parts, better for larger projects.

❓ component_behavior

intermediate

How Django handles database migrations compared to Flask

Which statement correctly describes how Django and Flask handle database schema changes?

A Flask has built-in migration tools that automatically update the database schema.

B Django requires manual SQL scripts for every schema change.

C Django uses built-in migration tools to track and apply schema changes automatically.

D Flask automatically detects and applies schema changes without extra setup.

💡 Hint

Consider which framework includes built-in tools for database migrations.

Django includes built-in migration tools that track model changes and apply them to the database. Flask requires external libraries like Alembic for migrations.

📝 Syntax

advanced

Identifying correct Flask route syntax

Which Flask route definition will correctly respond to GET requests at URL '/hello'?

Flask

from flask import Flask
app = Flask(__name__)

@???
def hello():
    return "Hello!"

A @app.route('/hello', method='GET')

B @app.route('/hello', methods='GET')

C @app.route('/hello', get=True)

D @app.route('/hello', methods=['GET'])

💡 Hint

Check the correct keyword and value type for specifying HTTP methods in Flask routes.

The 'methods' parameter expects a list of HTTP methods. Option D uses the correct syntax with a list ['GET'].

❓ state_output

advanced

Django template rendering output

Given this Django template snippet and context, what will be the rendered output?

Flask

{% if user.is_authenticated %}
  Welcome, {{ user.username }}!
{% else %}
  Please log in.
{% endif %}

A Welcome, alice!

B Please log in.

C Welcome, {{ user.username }}!

D Error: user is not defined

💡 Hint

Assume the context has user.is_authenticated = True and user.username = 'alice'.

The template checks if the user is authenticated. Since true, it renders the welcome message with the username.

🔧 Debug

expert

Debugging Flask app context error

What error will this Flask code raise when trying to access request.args outside a request context?

Flask

from flask import Flask, request
app = Flask(__name__)

print(request.args)

A No error, prints an empty ImmutableMultiDict.

B RuntimeError: Working outside of request context.

C NameError: name 'request' is not defined.

D AttributeError: 'NoneType' object has no attribute 'args'.

💡 Hint

Think about when Flask's request object is available.

The request object is only available during an active HTTP request. Accessing it outside raises a RuntimeError.