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January 10, 2026 Admin

Top Django Interview Questions & Answers (Beginner to Advanced) – A Complete 2026 Guide

Top Django Interview Questions & Answers (Beginner to Advanced) – A Complete 2026 Guide

Django is one of the most powerful and widely used Python web frameworks for building secure and scalable applications.

 This blog covers the most frequently asked Django interview questions, carefully divided into Beginner, Intermediate, and Advanced levels.

 Each answer includes important technical keywordsreal-world insights, and a future-ready perspective to help you succeed in Django interviews.

🔰 Beginner-Level Django Interview Questions

1. What is Django?

 Django is a high-level, open-source Python web framework that follows the MVT (Model-View-Template) architecture and emphasizes rapid development and clean design.

Technical Keywords:

 MVT architecture, Python framework, rapid development

2. What are the key features of Django?

 Django provides:

  • Built-in admin panel
  • ORM (Object Relational Mapper)
  • Strong security features
  • Scalability and reusability

Technical Keywords:

 ORM, admin interface, scalability, security

3. Explain Django MVT architecture

  • Model: Handles database logic
  • View: Contains business logic
  • Template: Manages UI presentation

Technical Keywords:

 Separation of concerns, MVC vs MVT

4. What is Django ORM?

 Django ORM allows developers to interact with databases using Python objects instead of SQL queries.

Technical Keywords:

 Database abstraction, query optimization

5. What is a Django project vs app?

  • Project: Entire Django application
  • App: A reusable module inside a project

Technical Keywords:

 Modular design, project structure

⚙️ Intermediate-Level Django Interview Questions

6. What are Django models?

 Models define the database schema using Python classes and are mapped to database tables via ORM.

Technical Keywords:

 Database schema, model fields

7. What are migrations in Django?

 Migrations track and apply database schema changes over time.

Technical Keywords:

 Schema evolution, version control

8. What is Django middleware?

 Middleware is a request–response processing layer used for authentication, logging, and security.

Technical Keywords:

 Request lifecycle, middleware pipeline

9. Difference between GET and POST methods?

  • GET: Retrieves data, visible in URL
  • POST: Sends data securely

Technical Keywords:

 HTTP methods, data transmission

10. What is Django REST Framework (DRF)?

 DRF is a toolkit for building RESTful APIs using Django.

Technical Keywords:

 REST API, serializers, API views

🚀 Advanced-Level Django Interview Questions

11. How does Django handle security?

 Django protects against:

  • SQL Injection
  • XSS
  • CSRF
  • Clickjacking

Technical Keywords:

 CSRF protection, XSS prevention

12. What is caching in Django?

 Caching stores frequently accessed data in memory to improve performance.

Types:

  • Per-site cache
  • Per-view cache
  • Low-level cache

Technical Keywords:

 Performance optimization, Redis, Memcached

13. What are signals in Django?

 Signals allow decoupled applications to react to events, such as model save or delete actions.

Technical Keywords:

 Observer pattern, event-driven programming

14. How does Django support scalability?

 Django scales using:

  • Load balancing
  • Caching
  • Database optimization

Technical Keywords:

 Horizontal scaling, performance tuning

15. What is the future of Django?

 Django remains future-ready with:

  • Async views support
  • API-first development
  • Cloud-native deployments

Technical Keywords:

 Async Django, cloud computing, microservices

🔹 Advanced Django Interview Questions & Answers (Extended)

16. How does Django handle database transactions?

Django uses atomic transactions via transaction.atomic() to ensure ACID compliance.

 If an exception occurs inside an atomic block, all database operations are rolled back.

Keywords: transaction.atomic, ACID, rollback, savepoints

17. What is select_for_update() and when should it be used?

select_for_update() locks selected rows until the transaction ends.

Use case: Preventing race conditions in concurrent updates (e.g., wallet balance updates).

Keywords: row-level locking, concurrency control, race condition

18. How does Django prevent SQL Injection?

Django ORM uses parameterized queries automatically.

 Raw SQL must use query parameters, not string interpolation.

Keywords: ORM, parameterized queries, SQL injection prevention

19. What are Django signals and real-world use cases?

Signals allow decoupled event handling using observer pattern.

Examples:

  • Auto-create profile on user creation
  • Clear cache after model save

Keywords: post_savepre_delete, observer pattern

20. Difference between cache_page and per-view caching?

  • cache_page: caches entire view response
  • Per-view caching: granular control with decorators or middleware

Keywords: caching strategy, performance optimization

21. What is Django middleware execution order?

Middleware runs in:

  • Request phase: top → bottom
  • Response phase: bottom → top

Keywords: request lifecycle, middleware stack

22. How does Django handle file uploads securely?

  • Uses FileField / ImageField
  • Stores files outside STATIC_ROOT
  • Validates file type & size

Keywords: MEDIA_ROOT, file validation, security

23. How do you implement soft delete in Django?

Instead of deleting rows:

  • Add is_deleted = BooleanField
  • Filter active objects using a custom manager

Keywords: soft delete, custom manager, data integrity

24. What is Django’s CSRF protection mechanism?

Django uses CSRF tokens validated per request using middleware.

Keywords: CSRF token, security middleware, POST protection

25. How does Django scale for high-traffic applications?

  • Database indexing
  • Caching (Redis/Memcached)
  • Async tasks (Celery)
  • Load balancing
  • Read replicas

Keywords: scalability, caching, async processing

🚀 Bonus Scenario-Based Questions (Interview Gold)

26. How would you optimize a slow Django API?

  • Use select_related / prefetch_related
  • Add DB indexes
  • Enable response caching
  • Paginate results

27. How do you handle background tasks in Django?

Using Celery + Redis/RabbitMQ for async job execution.

28. What are Django database indexes and when should you add them?

Indexes speed up filter, join, and order_by operations.

29. How do you manage secrets in Django production?

  • Environment variables
  • .env files
  • Secret managers (AWS Secrets Manager)

30. Explain Django request-response lifecycle.

  1. URL routing
  2. Middleware
  3. View execution
  4. Template rendering
  5. Response middleware

31. What is Django’s async support?

Django supports async views using ASGI for non-blocking I/O.

32. Difference between Gunicorn and uWSGI?

Both are WSGI servers, Gunicorn is simpler, uWSGI is more configurable.

33. How do you prevent duplicate records in Django?

  • unique=True
  • UniqueConstraint
  • Database-level constraints

34. What is Django’s AppConfig used for?

App initialization, signal registration, startup logic.

35. How does Django handle timezone-aware datetime?

Uses USE_TZ=True with UTC internally.

4. Pro Tips

  • Master Django ORM queries
  • Practice real-world CRUD projects
  • Understand request–response lifecycle
  • Learn Django REST Framework
  • Keep up with latest Django releases

5. Common Mistakes to Avoid

  • Ignoring Django security best practices
  • Writing raw SQL unnecessarily
  • Poor project structure
  • Overloading views with logic
  • Skipping database indexing

 Tags

  • What is Django used for?
  • Is Django good for large applications?
  • How to prepare for Django interviews?
  • What is Django ORM?

#django interview questions#django tutorial#django interview guide#django beginner to advanced#django developer career

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