Question 1

What is the default cache backend in Django if no configuration is specified?

Accepted Answer

Django uses the 'LocMemCache' backend (local memory cache) by default which stores data in the Python process memory. This backend is simple and fast but doesn't persist between server restarts and doesn't share data across different processes. It's suitable for development but not recommended for multi-process production environments.

Question 2

Which decorator should be used to cache the complete response of a view for 15 minutes?

Accepted Answer

The cache_page decorator from django.views.decorators.cache caches the complete HTTP response of a view. The parameter is the time in seconds (15 minutes = 900 seconds). The cache key is automatically generated from the URL and query parameters. This decorator also handles appropriate HTTP headers for caching.

Question 3

What is the correct syntax for the template tag to cache a template fragment for 5 minutes?

Accepted Answer

The {% cache %} tag caches a template fragment. The syntax is {% cache timeout cache_name %}...{% endcache %}. The first argument is the time in seconds (300 for 5 minutes), the second is a unique name to identify this fragment. Additional arguments can be added to vary the cache (e.g., user.id).

Django Caching

What is the default cache backend in Django if no configuration is specified?

Câu trả lời

Which decorator should be used to cache the complete response of a view for 15 minutes?

Câu trả lời

What is the correct syntax for the template tag to cache a template fragment for 5 minutes?

Câu trả lời

How to retrieve a value from cache with a default value if the key doesn't exist?

Which cache backend is recommended for a Django application in production with multiple instances?

Các chủ đề phỏng vấn Django khác

Python Basics

Python OOP

Django Fundamentals

Django Models - Basics

Django Views

Django Templates

Django Forms

Advanced QuerySets

Django Authentication

Django Middleware

Django Admin

Django REST Framework

Django Signals

File Upload

Django Sessions

Django Email

Django Testing

Django Security

Django Deployment

Advanced Django ORM

Django Performance

Django & Celery

Django Channels

Django & GraphQL

Django & Docker

Django in Microservices Ecosystem

Custom Django Commands

Django Internationalization

Django Design Patterns

Django Async & ASGI

Settings & Production Configuration

Observability & Monitoring

Nắm vững Django cho lần phỏng vấn tiếp theo