Django Interview Questions and Answers

Ques 6. What are the features of Django?

The following are the best features of the Django framework:

• Compared to other Python frameworks, Django has the best documentation available in the market
• It is a Python-based framework that offers all Python libraries for use in an application to add extra functionality
• Django primarily maintains a website using URLs rather than its IP address on the server, making it easier for SEO engineers to add the website to the servers
• It is highly versatile and scalable
• Django is highly secure and thoroughly tested
• It also ensures rapid development

Ques 7. Describe the Django architecture.

Django follows the Model-View-Template(MVT) architecture based on a popular Model-View-Controller(MVC) architectural pattern, which is followed by popular web-frameworks like Ruby on Rails, Laravel etc.

Django’s Model-View-Template architecture divides the complete application into three major logical components:

1. Model 
2. View
3. Template

All these three components are responsible for handling the different aspects of the web application.

Model: The models handle the database schema for the web applications. It maintains and represents the complete application data into the database. The default relational database used by the model is SQLite which is generally used in development, but in production we can use the MySQL and Postgres.

View: The view component manages all the logic of the application that we want to render on the user’s browser. In Django, the view acts as a bridge between the models and the templates. In the views, we can fetch the data from the models and render it on the template.

Template: The template component is the collection of static parts of the application such as the HTML, CSS, JavaScript, and Image files. The view uses the template as the base on which the data should be presented, because at the end, the web-application uses the static files to represent the content on the user browser.

Ques 8. What is the project directory structure in Django?

The following is the project directory structure in Django:

• manage.py: It is a command-line utility, allowing users to interact with their Django project
• __init__.py: An empty file specifying Python to consider the current directory as a Python package
• settings.py: It contains the necessary configurations of the project, such as DB connections
• urls.py: It holds all the URLs of a project
• wsgi.py: It is an application’s entry point used by web servers to serve the project 

Ques 9. What are models in Django?

In Django, a model is a class that maps to a database table or database collection. Models class contains attributes representing a database field, defined within the app/models.py file. These models act as the abstraction layer, helping in structuring and manipulating data. The models are the subclass of the django.db.models.Model class.

from django.db import models#product modelclass Product(models.Model):    name= models.CharField(max_length=30)    price= models.models.IntegerField()    description = models.TextField()    def __str__(self):        return f'{self.name}'

Ques 10. What are the components of the Django architecture?

The architecture of Django consists of the following components:

• Models: It specifies the database schema and the data structure
• Views: It controls what a user will see, the view used to retrieve the data from appropriate models, implement calculation on the data, and pass it to the desired template
• Templates: It specifies how the user sees it. It describes how the data received from the views should be formatted to display on a page
• Controller: The Django framework and URL parsing