Django is the most popular, Open source, and powerful web framework of Python which is used to serve full stack web development. If you are a Django developer and land your career as a Full-time Django web Developer and wants to make dynamic web applications, for that you have to face interview, and here in this article, we have mentioned most frequent asked Django interview questions.

Django Interview Questions

Question: What is Django?
Answer: Django is a full-stack Python Web framework which is used to create dynamic web Applications.

Question: From where it gets this name?
Answer: Django is named after Django Reinhardt, who was a gypsy jazz guitarist in early 30s.

Question: On which architecture designed pattern Django works?
Answer: Django works on MVT (Model View Templates) Architecture.

Question: What are Django Templates?
Answer: Django Templates could be a collection of XML, CSV and HTML files in which we inserted views context values.

Question: Give some Advantages of Using Django.
Answer:

  • It has a built-in web admin interface which can be used to handle models easily
  • It has many pre-packaged API for common user tasks.
  • it has easy Database management.
  • It is a Python Frameworks, so it has many libraries in inheritance.
  • It can develop application very fast and the build quality of the applications made on Django is just amazing.

Question: Give some Features of Django.
Answer:

  • It has well-organized and complete web documentation.
  • It is SEO friendly.
  • Form handling
  • Testing Framework
  • As a Python framework, it has a large community.
  • It can handle a large amount of that which show its high scalability.
  • It is a Full stack web framework.
  • Admin Authentication Feature which gives its app extra security
  • Object-Relational-Mapping helps to create data using native Object-Oriented programming language.
  • It provides an inbuilt admin interface

Question: Give some disadvantages of Django.
Answer:

  • We have to specify the URL routing in Django for every view, the URL specifying syntax is complicated but it is common, for a beginner it could be confusing at first.
  • Speed is a major disadvantage of python so for Django with the increase in data it slows down work.
  • It is monolithic which mean all the programming should be fall under MVT architecture the developer does not have any control over Django flow.
  • It is not an ideal framework for minor Projects

Question: Why we use include() function in project urls.py file?
Answer: We use include a function to attach the app urls file with the project urls file, this is a way by which we can easily do play and plug with different urls of different app with the project main urls.

Question: Name all the inheritance possible in Django.
Answer:

  • Abstract base classes
  • Multi-table Inheritance
  • Proxy models

Question: What is the context in Django?
Answer: Context is an optional render() function attribute which is a dictionary by nature and its key is used as a template tagging in templates file.

Question: How to install Django in your system?
Answer: Django is a python package so we can use the pip command to install Django.

C:\Users> pip install Django

Question: How to create a Django Project?
Answer: To create a Django Project we need to open the command prompt and write this command.

django-admin startproject project_name

this will create a directory with the project_name having a subdirectory and a manage.py file

Question: By default which database does Django follow?
Answer: By default Django has SQLite Database, but if we want we can change it with MySQL or any other Relational Databases from the setting.py file.

Question: Where we register our Models.
Answer: We need to register our models at admin.py file.

Question: What does createsuperuser subcommand do?
Answer: The createsuperuser command creates a super user, who can access the admin interface of the app.

Question: What do Views do in Django?
Answer: Views are the function with a request attribute, they take request and return repose, the response could be in the form of HttpResponse or render().

Question: Name the Caching Strategies in Django.
Answer:

  • File System caching
  • In-memory caching
  • Using Memcached
  • Database caching

Question: What is the use of manage.py in Django?
Answer: The manage.py create automatically when we create the Django project with the django-admin startproject.

It has the following usages:

  • It put our projects packages on sys.path
  • It set a Django environment
  • It has a collection of subcommands which is used to run our all Django modules.

Question: What parameters do we use in signals?
Answer:

  • Receiver
  • Sender

Question: Name the usages of middlewares in Django.
Answer:

  • Session management
  • User authentication
  • Cross-site request
  • Forgery protection
  • Content gzipping

Question: Give some drawbacks of Object Relational Mapping in Django?
Answer: Its implementation is quite complex and with a huge amount of data it also affects the speed of Django.

Question: Why do we use migration subcommand?
Answer: We use migration command to tell the Django that we have made some changes in the Model database and it needs to update those.

Question: Why do we use makemigration subcommand?
Answer: By running the makemigration command we tell Django that we have made some changes in our models and we would like to changes to be stored as a migration.

Question: What does the session framework do?
Answer: The session framework let us store and retrieve arbitrary data on a pre-site-visitor basis. It stores data on the server side and abstracts the sending and receiving of cookies

Name all the manage.py subcommand

auth

  • changepassword
  • createsuperuser
  • contenttypes
  • remove_stale_contenttypes

django

  • check
  • compilemessages
  • createcachetable
  • dbshell
  • diffsettings
  • dumpdata
  • flush
  • inspectdb
  • loaddata
  • makemessages
  • makemigrations
  • migrate
  • sendtestemail
  • shell
  • showmigrations
  • sqlflush
  • sqlmigrate
  • sqlsequencereset
  • squashmigrations
  • startapp
  • startproject
  • test
  • testserver

sessions

  • clearsessions

staticfiles

  • collectstatic
  • findstatic
  • runserver
  • Question: Name some common Django Exceptions.

Answer:

  • AppRegistryNotRead
  • ObjectDoesNotExist
  • EmptyResultSet
  • FieldDoesNotExist
  • MultiObjectReturned
  • SuspiciousOperation
  • PermisssionDenied
  • ViewDoesNotExist
  • MiddlewareNotUsed
  • FieldError
  • ValidationError

Question: How can we register a model in Django?
Answer: We register our models at admin.py file, to register the model we use admin.site.register(model_name) command.

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