Zummit Infolabs Interview Questions, Process, and Tips

range returns a list of numbers while xrange returns an iterator object.

• range creates a list of numbers from start to end with a step size of 1.

• xrange returns an iterator object that generates numbers on the fly.

• range takes more memory as it creates a list while xrange is memory efficient.

• In Python 3, range is similar to xrange in Python 2.

Race condition occurs when multiple threads/processes access and modify shared data simultaneously.

• It can lead to unpredictable behavior and data corruption.

• Django provides thread-safe mechanisms like database transactions and caching to prevent race conditions.

• Example: If two users try to update the same record in the database at the same time, it can result in inconsistent data.

• Another example is when multiple reques...read more

Middleware is software that acts as a bridge between an application and its data.

• Middleware is used to handle requests and responses between the client and server.

• It can be used for authentication, caching, compression, and more.

• In Django, middleware is defined in settings.py and executed in order.

• Examples of middleware in Django include SessionMiddleware and CsrfViewMiddleware.