Hiring Django developers is tricky as we need to check their technical skills. As we know, Django is a famous framework of Python programming language. Python is king in the world of technical programming languages. So when hiring python developers or Django developers, we need to examine their technical expertise.
Outsourcing companies ensure that their team is well-versed and groomed with the technologies. Let’s look at some top interview questions for Django developers.
1) What is Django?
Django is a web framework presented and written in Python and delivers clean and swift development and pragmatic design.
2) Describe Django’s Architecture.
Django adheres to the Model View Template (MVT) design pattern based on the Model View Controller architecture. The framework handles the controller. The template represents a presentation layer. It is an HTML file combined with Django Template Language (DTL). The developer provides the model, view, and template, which is then mapped to a URL and served to the user.
3) What is Django template language?
Templates are critical components of the Django MVT design. They typically consist of HTML, CSS, JavaScript, and JavaScript, into which dynamic variables and information are injected via views. The template engine recognises and interprets several constructs. Variables and tags are essential.
4) What is the Django Admin interface?
Django has an utterly customisable admin interface that allows us to examine and modify all data in the registered applications and models database. We must write the model in the admin.py file to use a database table with the admin interface.
5) How do you understand the model in Django?
A model in Django is a Python class inherited from django.db.models. The model class. In Django, a model is used to represent a table in a database. It communicates with and gets data from our application's database tables.
6) What are the views in Django?
In Django, a view is a class or function that receives a request and produces a response. A view is often connected with urlpatterns. Furthermore, the logic wrapped in it is executed when a request to the URL associated with it is completed. A view, among other things, uses models to retrieve data from the database, feeds that data to the templates, and returns the rendered template to the user as a HttpResponse.
7) Explain Django ORM.
Django ORM stands for Object Relational Mapper. ORM aims to transfer data between models and databases in the application.
8) What is a DRY principle in Django?
Django follows the Don't Repeat Yourself (DRY) concept, which means that code is reused rather than duplicated. This notion enables the codebase's decrease and improves developer communication.
9) Give a brief of the Django REST framework.
Django Rest Framework is an open-source Django-based framework that allows you to develop RESTful APIs quickly.
10) When and why should we build and apply migrations to Django projects?
We use the migration process whenever we make changes to the model in one of the applications of the project. It will change the database's schemas and be generated based on our model.
11) What is Meta class in Django?
In Django, a Meta class is essentially an inner class that gives metadata about the outer class. It specifies the available permissions, the name of the connected database table, the single and plural variants of the name, and so on.
12) What is the Serialization process in Django?
Serialization converts Django models into formats like JSON, XML, etc.
13) What are the various Django model inheritance styles?
Abstract Base Class Inheritance: Used when the parent class is required to contain information you do not wish to write for each child model.
Multi-Table Model Inheritance: Used when you are subclassing an existing model and require each model to have its table in the database.
Proxy Model Inheritance: Used to keep the model's field while changing the model's python level functionality.
14)What is user authentication in Django?
Django has a user authentication system that handles objects such as users, groups, user permissions, and a few cookie-based user sessions. Django User authentication both authenticates and authorises the user.
The system is made up of and works on the following objects:
Users \sPermissions \sGroups
Validation of Password Hashing System Forms
A programmable backend system
15) Which databases are used in Django?
SQLite and Oracle, as well as PostgreSQL and MySQL. Aside from these, Django uses third-party packages to handle databases such as ODBC, Microsoft SQL Server, IBM DB2, SAP SQL Anywhere, and Firebird. Django does not officially support any no-SQL databases.
Wrapping up here, if you are looking to hire Django developers for your project from outsourcing companies, you must go through such fundamental questions and answers to understand their capabilities.
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