Django interview questions and answers

MVT stands for Model, View, Template.

A view is a callable that takes an HttpRequest and returns an HttpResponse.

A template is an HTML file with Django template language tags and filters.

urls.py maps URL patterns to views using path() or re_path().

Django admin is a built-in CRUD interface generated from your models.

A project is the whole site: settings, root URLconf, and WSGI/ASGI entry points.

The ORM maps Python classes to database tables so you query with Python instead of raw SQL.

Subclass django.db.models.Model and declare fields such as CharField or ForeignKey.

A QuerySet is a lazy representation of a database query.

Call MyModel.objects.all() to get a QuerySet of every row.

ForeignKey stores a many-to-one relation: many child rows point at one parent.

Migrations are versioned Python files that describe schema changes.

Middleware is a hook that runs on every request and response.

The MIDDLEWARE list in settings.py is an ordered sequence of dotted class paths.

SecurityMiddleware sets HTTPS redirects and security headers such as HSTS.

Signals are a dispatcher that lets decoupled apps react to events such as a model save.

post_save runs after a model is saved to the database.

Decorate a function with @receiver(post_save, sender=MyModel) or call post_save.connect(handler, sender=MyModel).

DRF is a toolkit for building Web APIs on top of Django.

A serializer converts model instances or primitives to JSON-like data and validates incoming payloads.