What are some of the Django interview questions for junior developers with useful advice?

What are some of the Django interview questions for junior developers with useful advice?

Here are some common Django interview questions tailored for junior developers, along with useful advice to help you prepare:

1. What is Django, and why is it used for web development?

- Advice: Start with a concise definition of Django as a high-level Python web framework.

Highlight its features like DRY (Don't Repeat Yourself) and rapid development capabilities.

2. Explain the Model-View-Controller (MVC) architectural pattern and how it relates to Django.

- Advice: Correctly identify that Django follows the Model-View-Template (MVT) pattern, which is similar to MVC. Explain how models, views, and templates correspond to the MVC components.

3. What is the purpose of Django's ORM (Object-Relational Mapping)?

- Advice: Describe how Django's ORM allows you to work with databases using Python classes and objects instead of raw SQL queries. Mention the benefits of code reusability and portability.

4. How do you create a new Django project and application?

- Advice: Explain that you can create a new Django project using the `django-admin start project` command and create applications within the project using the `python manage.py start app` command.

5. What is the Django admin site, and how do you customize it?

- Advice: Mention that the admin site is a built-in feature for managing database records.

Discuss how you can customize it by creating admin classes, including fields and methods.

6. Explain URL routing in Django and how it's configured.

- Advice: Describe how URL routing maps URLs to views using the `urls.py` file. Emphasize the use of regular expressions for URL patterns and the importance of naming your URLs.

7. What are Django models and how are they defined?

- Advice: Explain that Django models are Python classes that define the structure of database tables. Discuss fields like Char Field, Integer Field, and Foreign Key, and how they are used in models.

8. How do you perform database migrations in Django?

- Advice: Describe the process of creating and applying migrations using the `make migrations` and `migrate` management commands. Highlight the importance of keeping the database schema in sync with your models.

9. What is a Django view, and how does it work?

- Advice: Define Django views as functions or classes that handle HTTP requests and return HTTP responses. Explain how views are mapped to URLs and may interact with models and templates.

10. What is Django template language, and how do you use it?

- Advice: Introduce Django's template language for rendering dynamic HTML. Mention template tags, filters, and variables. Emphasize how it separates the presentation layer from business logic.

11. How do you manage user authentication in Django?

- Advice: Discuss the built-in authentication system and mention the use of the `User` model, login views, decorators, and the `auth` application. Explain the process of user registration, login, and logout.

12. What is Django REST framework, and how does it extend Django for building APIs? - Advice: Explain that Django REST framework is an extension for creating RESTful APIs. Discuss serializers, views, and routers as key components for building APIs.

13. How do you handle static and media files in Django?

- Advice: Mention the use of the `STATIC_URL` and `MEDIA_URL` settings. Describe how to serve static files during development and how to handle media file uploads.

14. Explain the importance of Django's middleware. Can you name a few common middleware classes?

- Advice: Describe middleware as a way to process requests and responses globally in Django. Mention common middleware classes like `Authentication Middleware` and `Csrf View Middleware`.

15. Have you worked with Django's testing framework? How do you write and run tests in Django?

- Advice: Explain the purpose of testing in Django and discuss how to write unit tests and functional tests using Django's test case classes and the `unittest` module.

Use these questions and advice to bolster your preparation for a junior Django developer interview. Remember to practice coding and problem-solving, as hands-on experience is invaluable in interviews. Good luck!