Celusion Technologies Java Developer Interview Questions and Answers for Experienced

Designing a video streaming platform involves considering scalability, user experience, content delivery, and security.

• Consider scalability by using a distributed architecture to handle large numbers of concurrent users.

• Focus on user experience with intuitive interfaces, personalized recommendations, and seamless playback.

• Implement content delivery networks (CDNs) to ensure fast and reliable streaming across different ...read more

Single Page Application is a web application that loads a single HTML page and dynamically updates the page as the user interacts with it.

• Loads a single HTML page initially

• Updates content dynamically without reloading the entire page

• Uses AJAX, JavaScript, and frameworks like Angular, React, or Vue.js

• Provides a seamless user experience similar to a desktop application

Ajax calls are asynchronous HTTP requests made by the browser to the server without reloading the entire page.

• Ajax stands for Asynchronous JavaScript and XML

• Used to update parts of a web page without reloading the entire page

• Improves user experience by making the website more dynamic

• Commonly used in web applications to fetch data from a server

• Examples: fetching new emails in Gmail without refreshing the page, updating

Content Delivery Networks (CDNs) are distributed servers that help deliver web content efficiently to users based on their geographic location.

• CDNs cache content closer to users for faster delivery

• They help reduce latency and improve website performance

• Popular CDNs include Akamai, Cloudflare, and Amazon CloudFront