CashLink Global Systems Interview Questions and Answers

CORS policies prevent web pages from making requests to a different domain than the one that served the web page.

• CORS stands for Cross-Origin Resource Sharing

• It is a security feature implemented in web browsers

• It prevents web pages from making requests to a different domain than the one that served the web page

• To tackle with CORS policies, we can use techniques like JSONP, proxy server, or CORS headers

• JSONP is a technique that allows making cross-domain requests by injecting ...read more

Queue system in Laravel is a background job processing system.

• Allows to defer time-consuming tasks

• Uses drivers like database, Redis, Amazon SQS, etc.

• Can prioritize jobs and set maximum attempts

• Example: sending emails, generating reports, etc.

Middlewares are software components that act as a bridge between different applications or systems.

• They provide a layer of abstraction between the application and the underlying system.

• They can handle tasks such as authentication, logging, and error handling.

• Examples include Express.js middleware for Node.js applications and Django middleware for Python applications.

DOM stands for Document Object Model. It is a programming interface for web documents.

• DOM is a tree-like structure that represents the HTML or XML document.

• It allows JavaScript to access and manipulate the content and structure of a web page.

• DOM provides methods and properties to modify the document dynamically.

• It is platform and language independent.

• Example: document.getElementById('myElement').innerHTML = 'New content';

MVC life cycle is a process that describes how a Model-View-Controller application works.

• The client sends a request to the controller.

• The controller receives the request and selects the appropriate model.

• The model processes the request and returns data to the controller.

• The controller selects the appropriate view and passes the data to it.

• The view renders the data and sends it back to the client.