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Quizzes > Quizzes for Business > Technology

Interactive Python/Django Developer Assessment Quiz

Assess Your Python and Django Expertise Now

Difficulty: Moderate
Questions: 20
Learning OutcomesStudy Material
Colorful paper art representing PythonDjango Developer Assessment Quiz

Ready to challenge yourself with a Python/Django Developer Assessment Quiz? Whether you're brushing up on Django fundamentals or preparing for an interview, this free quiz covers models, views, templates, forms, and REST APIs to sharpen your skills. This interactive test pairs well with the Python Developer Skills Assessment or the Python Programming Practice Quiz for deeper practice. Feel free to customize any question in our quizzes editor to match your learning goals. Take the quiz now and gain actionable insights to elevate your Django expertise!

What is the primary role of Django middleware?
To process request and response objects both before and after view functions
To manage static file routing
To define database migrations
To render template tags
Django middleware acts as a framework of hooks into request/response processing. It can modify the request before it reaches the view and the response before it's returned to the client.
Which HTTP method is NOT handled by Django's built-in FormView?
GET
PUT
POST
HEAD
FormView only implements handlers for GET requests (to display the form) and POST requests (to process submissions). It does not include built-in support for PUT requests.
What is the default primary key field auto-generated in Django models?
DateTimeField
UUIDField
AutoField
CharField
By default, Django adds an AutoField named 'id' as the primary key if no other primary key is specified. This field automatically generates unique integer values for each record.
In Django URL routing, what does the path converter '' do?
Matches slug segments
Matches any string segment
Matches floating-point numbers
Matches integer path segment and passes it as 'id'
The '' path converter in Django URL routing only matches integer values and converts them to Python ints. It passes the matched integer to the view as the keyword argument 'id'.
Which method is used to validate data in a Django Form?
form.clean_data()
form.is_valid()
form.validate()
form.save()
The method form.is_valid() runs built-in and custom validations and returns a boolean indicating if the data is valid. It also populates the form.cleaned_data dictionary with validated values.
Which Django ORM method fetches related objects via SQL join to avoid N+1 queries?
raw()
only()
values()
select_related()
select_related() performs a SQL join and retrieves related objects in the same query, which helps avoid N+1 query issues. It is useful for single-valued relationships like ForeignKey and OneToOneField.
In which Django settings list should you insert custom middleware for request/response processing?
INSTALLED_APPS
URLCONF_MODULE
MIDDLEWARE
TEMPLATE_CONTEXT_PROCESSORS
The MIDDLEWARE setting in Django settings.py lists all middleware classes that process requests and responses. Custom middleware should be added to this list to integrate into the request/response lifecycle.
What is the main purpose of Django's CSRF token?
Encrypt session cookies
Cache static files
Prevent cross-site request forgery
Optimize database queries
Django's CSRF token is designed to prevent cross-site request forgery by ensuring that POST requests originate from trusted sources. It works by comparing a token in the form to a token stored in the user's session.
Which Django REST framework class is commonly used to convert Django model instances into JSON representations?
JSONRenderer
ModelSerializer
ViewSet
Parser
ModelSerializer in Django REST framework automatically generates serializer fields based on the model's fields. It simplifies converting model instances to JSON and validating input data.
How can you customize the string representation of a Django model in Django Admin and shell?
Define the __str__ method on the model
Override __unicode__ only
Implement a __repr__ method
Set verbose_name in Meta
Defining the __str__ method on a Django model returns a human-readable representation of the object. This representation is used in the Django Admin interface and during debugging.
How does Django's ORM help prevent SQL injection attacks when filtering data?
It disables unsafe SQL statements by default
It uses parameterized queries when you use filter() and exclude()
It automatically escapes all HTML inputs
It compiles raw SQL with string concatenation
Django's ORM uses parameterized SQL queries under the hood when you use methods like filter() and exclude(), which prevents SQL injection attacks. It binds user inputs as parameters rather than concatenating them into the SQL string.
In a Django ModelForm, how do you exclude specific model fields from the form?
Use a Meta inner class with an 'exclude' list
Override the form's __init__ to pop fields
Set fields = [] in Meta
Use the only() method
In a Django ModelForm, the Meta inner class 'exclude' attribute specifies which model fields should not be included in the generated form. This is the recommended way to omit fields without manually popping them in the form's __init__ method.
Which Django function returns a URL string by looking up a view name?
path()
include()
redirect()
reverse()
The reverse() function in Django takes a view name and optional parameters to return the corresponding URL string. This allows decoupling URL patterns from hardcoded links in templates and code.
In a RESTful API using Django REST framework, which HTTP status code commonly indicates a successful DELETE request with no content?
202 Accepted
404 Not Found
204 No Content
200 OK
A 204 No Content status code indicates the server successfully processed the request and is not returning any content. It is commonly used in RESTful APIs for successful DELETE operations.
What is the purpose of the Django ORM method prefetch_related()?
Limit the number of returned rows
Combine multiple QuerySets into one
Fetch many-to-many and reverse foreign-key related objects in a separate query
Perform database-level caching of queries
prefetch_related() executes a separate query to fetch related objects for many-to-many and reverse foreign-key relationships and joins them in Python. It helps reduce database hits when accessing those related objects for multiple primary objects.
In custom Django middleware, which method should you implement to handle exceptions raised in views?
process_response
process_exception
process_request
process_template_response
process_exception is a method in Django middleware that is called when a view raises an exception. Implementing this method allows custom middleware to handle errors and return appropriate responses.
How do you annotate each object in a Django QuerySet with the count of its related 'comments'?
select_related('comments_count')
aggregate(comment_count=Count('comments'))
annotate(comment_count=Count('comments'))
values('comments').count()
Using annotate(comment_count=Count('comments')) adds an extra field 'comment_count' to each object in the QuerySet, representing the number of related comments. This leverages the Django aggregation framework at the database level.
Which Django URL pattern using re_path correctly captures a 4-digit 'year' parameter?
""
""
r'^(?P\d{4})/$'
r'\d{4}/'
The re_path function accepts a regular expression pattern, and r'^(?P\d{4})/$' correctly captures a named group 'year' containing exactly four digits. The named group is passed to the view as a keyword argument.
Which HTTP header should be set to prevent clickjacking by disallowing your site in frames?
Strict-Transport-Security: max-age
Content-Security-Policy: script-src
X-Frame-Options: DENY
X-XSS-Protection: 1; mode=block
Setting the 'X-Frame-Options' header to 'DENY' instructs browsers not to allow the page to be displayed in a frame or iframe. This header is an effective defense against clickjacking attacks.
In Django REST framework, how do you restrict a ViewSet so that only authenticated users can access its endpoints?
Decorate each method with @login_required
Override dispatch to check request.user manually
Use authentication_classes = []
Set permission_classes = [IsAuthenticated] on the ViewSet
In Django REST framework, defining permission_classes = [IsAuthenticated] on a ViewSet restricts access so that only authenticated users can interact with its endpoints. Unauthorized requests will receive a 401 Unauthorized response.
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Learning Outcomes

  1. Analyse Django request-response lifecycle and middleware operations
  2. Evaluate model relationships and ORM query performance
  3. Master URL routing and view functions in Django
  4. Identify common security issues and apply best practices
  5. Demonstrate form handling and data validation techniques
  6. Apply REST framework concepts to build API endpoints

Cheat Sheet

  1. Understand the Django Request-Response Cycle - Think of Django as a magical mailroom: a request arrives and zips through middleware, gets routed via URL patterns to the right view, and then returns with a shiny response. Mastering this cycle is like having a backstage pass to debug issues and boost performance in your projects. Read about the Django request-response cycle
  2. Master Middleware Operations - Middleware is Django's secret agents, intercepting requests and responses to add extra checks, logging, or flashy transformations. Writing custom middleware lets you tailor global behaviors - from authentication filters to performance timers - across your entire app. Dive into Django middleware
  3. Optimize ORM Query Performance - Django's ORM is a powerful translator between Python and SQL, but without care, it can trigger the dreaded N+1 query problem. By using select_related and prefetch_related, you bundle related data fetches into fewer database hits and keep your app gliding smoothly. Optimize ORM queries with best practices
  4. Implement Secure Coding Practices - Secure coding in Django is like building a fortress around your app; use CSRF tokens, strict input validation, and secure settings to fend off common attacks. Keep your dependencies up-to-date, and leverage Django's built-in security tools to sleep easy. Master Django REST security
  5. Handle Forms and Data Validation Effectively - Django forms are your first line of defense for user input, automatically generating HTML, validating data, and providing friendly error messages. With custom validation methods, you can enforce complex business rules and guide students through error-free submissions. Learn Django forms and validation
  6. Apply REST Framework Concepts to Build APIs - The Django REST Framework makes API-building a breeze, offering serializers to convert data, viewsets to handle requests, and routers to map URLs effortlessly. Understanding these core concepts lets you create scalable, maintainable APIs that any developer (or teen coder) can love. Explore Django REST Framework
  7. Configure URL Routing and View Functions - URL routing in Django is like a GPS for your app, directing incoming traffic to the right view functions or class-based views based on patterns you define. Keeping routes clean and organized improves both readability and maintainability of your code. Understand Django URL routing
  8. Implement Authentication and Authorization - Authentication and authorization are the keys to secure user experiences; Django's built-in system handles user accounts, sessions, and permissions out of the box. Customize authentication backends and permission classes to match your unique project requirements and stay in control. Secure your app with Django auth
  9. Manage Static and Media Files - Serving static and media files efficiently keeps your app looking sharp and running smoothly; configure STATICFILES_DIRS for CSS/JS and MEDIA_ROOT for uploads, then let Django (or your web server) handle the rest. Master this to ensure fast load times and proper file handling. Manage static & media files
  10. Deploy Django Applications Securely - Deploying your Django app is like launching a rocket: set DEBUG to False, configure allowed hosts, and choose a robust web server and database setup. Don't forget logging, monitoring, and following the official deployment checklist to keep your app healthy in production. Follow Django deployment best practices
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