10+ Ray Business Technologies Interview Questions and Answers

Tuple is immutable and ordered, while list is mutable and ordered. Tuples are used for fixed data, lists for dynamic data.

• Tuple is created using parentheses (), while list is created using square brackets []

• Tuples are immutable, meaning their elements cannot be changed once defined, while lists are mutable and can be modified

• Tuples are typically used for fixed data that will not change, while lists are used for dynamic data that may need to be updated or modified

• Example: Tupl...read more

Different testing frameworks in Django include Django's built-in test framework, pytest, and unittest.

• Django's built-in test framework: Provides tools for testing Django applications and is easy to use.

• pytest: A popular testing framework that offers more features and flexibility compared to Django's built-in test framework.

• unittest: A standard Python testing framework that can also be used for testing Django applications.

We use AWS services like EC2, S3, RDS, Lambda, and CloudWatch in our project.

• EC2 - for hosting our application servers

• S3 - for storing and serving static assets

• RDS - for managing our relational database

• Lambda - for serverless computing

• CloudWatch - for monitoring and logging

Code to find second largest number in an array without using built-in functions

• Iterate through the array to find the largest number

• Keep track of the largest number and update it if a larger number is found

• Once the largest number is found, iterate again to find the second largest number

Monolithic architecture is a single unified unit while microservices architecture is composed of small, independent services.

• Monolithic architecture is a single, indivisible unit where all components are tightly coupled.

• Microservices architecture breaks down the application into smaller, independent services that communicate with each other through APIs.

• Monolithic applications are easier to develop and deploy but can be harder to scale and maintain.

• Microservices allow for bet...read more

Django is a high-level Python web framework that encourages rapid development and clean, pragmatic design. Flask is a lightweight WSGI web application framework.

• Django is a full-featured framework with built-in ORM, admin panel, and authentication system, while Flask is more lightweight and flexible.

• Django follows the 'batteries included' philosophy, providing many built-in features out of the box, whereas Flask is more minimalistic and allows developers to choose their own t...read more

Django code to render hello world template

• Create a new Django project

• Create a new Django app within the project

• Create a template file with 'hello world' content

• Update views.py to render the template

• Update urls.py to map a URL to the view

Mixins in Django are a way to reuse code across multiple classes by providing methods and attributes that can be inherited.

• Mixins are classes that provide methods and attributes to be inherited by other classes.

• They are used to add common functionality to multiple classes without repeating code.

• Mixins are not meant to be instantiated on their own, but rather to be inherited by other classes.

• An example of a mixin in Django is the LoginRequiredMixin which adds login required fu...read more

Decorator in Python is a design pattern that allows adding new functionality to an existing object without modifying its structure.

• Decorators are functions that modify the behavior of other functions or methods.

• They are denoted by @decorator_name above the function definition.

• Decorators can be used for logging, timing, authentication, etc.

• Example: @staticmethod, @classmethod, @property