35+ Django Interview Questions and Answers

If you are about to take your first plunge into the world of Django development or, for that matter, if you are going to prepare for a Django interview, then it is quintessential that you should have in-depth sound knowledge about what comprises the leading best practices and key concepts within the framework.  

Just like an experienced traveler with a compass and a map, you need to have the right tools to help you ace the Django interviews successfully. This set of more than 35 Django Interview Questions and Answers will ensure you have a reliable compass in your hands to navigate through the diversity of questions and challenge any Django interview boldly. 

Table of Contents 

1) Django Interview Questions for beginners

   a) What is Django? 

   b) Is Django named after that Quentin Tarantino movie? 

2) Django Interview Questions for intermediate 

   a) In Django's context, what's the difference between a project and an app? 

   b) What's a model in Django? 

3) Django Interview Questions for experienced 

   a) What is the Django Rest Framework? 

   c) What do you use middleware for in Django? 

4) Conclusion
 

 

Django Interview Questions for beginners 

Here are some commonly asked Django interview questions for beginners: 

1) What is Django? 

Django is a high-level Python web framework that encourages rapid development and clean, pragmatic design. 

2) Is Django named after that Quentin Tarantino movie? 

No, Django is named after Django Reinhardt, a jazz guitarist from the 1930s to 1950s. 

3) What are the features of using Django? 

Django features include a built-in admin panel, ORM, authentication mechanisms, and extensive documentation. 

4) Can you name some companies that use Django? 

Companies using Django include Instagram, Pinterest, Mozilla, and The Washington Times. 

5) Why do web developers prefer Django?  

Web developers prefer Django for its rapid development capabilities, robust security features, and scalability. 

6) What is CRUD?  

CRUD stands for Create, Read, Update, Delete—basic operations provided by many web frameworks, including Django. 

7) Does Django have any drawbacks?  

Django's drawbacks include a steep learning curve, monolithic structure, and sometimes overly complex URL dispatchers. 

8) Explain Django Architecture?  

Django uses an MVT (Model-View-Template) architecture, a variation of the MVC framework. 

9) Explain the Django project directory structure.  

A Django project directory includes apps, settings, URLs, wsgi/py files, and typically app directories containing models, views, and templates. 

10) What are models in Django?  

Models in Django are Python classes that define the structure of an application’s data and provide mechanisms to manage (add, modify, delete) the data in the database. 

11) What are the views in Django?  

Views in Django are functions or classes that handle the logic and control flow for requests and responses. They request information from the models and pass it to templates. 

12) What is Django ORM?  

Django ORM (Object-Relational Mapping) allows developers to interact with their database like Python objects, abstracting SQL commands. 

13) Define static files and explain their uses.  

Static files in Django are assets such as CSS, JavaScript, and images that are not dynamically generated and are necessary for the frontend of a web application. 

14) What are Django-admin and manage.py and explain their commands?  

Django-admin and manage.py are command-line utilities that help manage Django projects. They handle tasks like starting new apps, working with databases, and initiating server. 

15) What is Jinja templating?  

Jinja templating is a template engine for Python, similar to Django's template system, allowing the creation of HTML interfaces using Python-like expressions for dynamic content rendering. 

Django Interview Questions for intermediate 

Here are some commonly asked Django interview questions for intermediate level: 

1) Difference between a project and an app in Django? 

A project is a complete Django website containing multiple apps, which are modular components handling different parts of the website’s functionality. 

2) What's a model in Django?  

A model in Django is a Python class that defines the structure of database data, including the types of fields and possibly also the behavior of the data. 

3) What are templates in Django?  

Templates in Django are HTML files that allow Python-like expressions for inserting dynamic data that a view can pass to the template. 

4) Discuss Django's Request/Response Cycle.  

The cycle starts when a web server receives a request, which Django matches with a URL pattern, processes via a view, and returns a response generated by a template. 

5) What is the Django Admin interface?  

The Django Admin interface is a built-in, web-based interface for managing site data. It’s highly customizable and automatically generated from model definitions. 

6) How do you install Django?  

Django can be installed via pip with the command: pip install django. 

7) How do you check the version of Django installed on your system?  

Run django-admin --version or python -m django --version in your command line. 

8) What are signals in Django?  

Signals in Django allow decoupled applications to get notified when actions occur elsewhere in the application. 

9) Explain user authentication in Django.  

Django’s user authentication system handles user accounts, groups, permissions, and cookie-based user sessions. 

10) What databases are supported by Django?  

Django supports PostgreSQL, MySQL, SQLite, and Oracle. 

11) What's the use of a session framework?  

The session framework in Django enables storing and retrieving arbitrary data on a per-site-visitor basis to manage state across requests. 

12) What is the context in Django?  

Context in Django is a dictionary mapping variable names to Python objects, passed to the template to render the dynamic content. 

13) What are Django.shortcuts.render functions?  

Django.shortcuts.render combines a given template with a given context dictionary and returns an HttpResponse object with that rendered text. 

Django Interview Questions for experienced 

Here are some commonly asked Django interview questions for experienced level: 

1) What is the Django Rest Framework?  

Django Rest Framework (DRF) is a powerful toolkit for building Web APIs in Django, providing features like serialization, authentication, and view sets for rapid API development. 

2) What do you use middleware for in Django?  

Middleware in Django is a framework of hooks into Django's request/response processing. It's a lightweight, low-level plugin system for globally altering Django’s input or output. 

3) What does a URLs-config file contain?  

A URLs-config file in Django contains mappings between URL path expressions to Python callback functions (views). This defines the URL structure for a Django web application. 

4) Does Django support multiple-column primary keys?  

Django does not natively support composite primary keys (multiple-column primary keys) without using a third-party package. 

5) How can you see raw SQL queries running in Django?  

You can see the raw SQL queries Django runs by using print(queryset.query) for a given queryset or using Django's logging capabilities to log SQL queries. 

6) List several caching strategies supported by Django.  

Django supports several caching strategies including file-based caching, memory-based caching, database caching, and using distributed caching solutions like Memcached or Redis. 

7) What is a QuerySet in the context of Django?  

A QuerySet in Django is a collection of database queries to retrieve objects from your database. It allows you to read the data, filter it, order it, and perform other operations. 

8) What do you use django.test.Client class for?  

The django.test.Client class in Django is used for simulating a client to test views during development, allowing you to interact with your application's views and check responses without running a server. 

9) How to use file-based sessions?  

To use file-based sessions in Django, set SESSION_ENGINE to "django.contrib.sessions.backends.file" in your settings file and specify a directory for SESSION_FILE_PATH where session files will be stored. 

Conclusion 

Mastering Django interview questions across beginner, intermediate, and experienced levels equip developers with the knowledge needed to navigate interviews confidently. With its robust features and widespread adoption, Django continues to be a preferred framework for rapid web development, ensuring both efficiency and scalability in projects.