Web Sockets: Real-time Communication

Choose a study mode

Play Quiz

Study Flashcards

Spaced Repetition

Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Which technology is best suited for real-time updates to multiple clients?

Short polling
Long polling
Web sockets (correct)
HTTP requests

What is a key characteristic of web sockets?

They rely on the client repeatedly asking for updates.
They use HTTP for every request.
They maintain a persistent connection. (correct)
They are only suitable for single clients.

Which polling method involves the server holding the request open until new data is available?

Standard HTTP request
Long polling (correct)
Web sockets
Short polling

What is a primary drawback of short polling?

It can cause unnecessary server load. (D) Signup and view all the answers

Which method is the least efficient for near real-time updates?

Short polling (A) Signup and view all the answers

What is the main advantage of using web sockets over traditional HTTP?

Reduced server load for real-time applications (D) Signup and view all the answers

What type of connection do web sockets use?

Persistent (C) Signup and view all the answers

In which scenario would web sockets be most beneficial?

Displaying stock prices that update every second (D) Signup and view all the answers

Which of the following is NOT a characteristic of short polling?

It maintains a persistent connection. (B) Signup and view all the answers

Which method is most similar to web sockets?

Server-Sent Events (B) Signup and view all the answers

Flashcards

WebSockets

A communication protocol that provides full-duplex communication channels over a single TCP connection, enabling real-time data transfer between server and clients.

Short Polling

A technique where the client repeatedly requests information from the server at regular intervals.

Long Polling

A technique where the server holds the client's request open until new data is available, then sends a complete response.

Study Notes

Web sockets are ideal for applications requiring real-time, bi-directional communication with multiple clients.
The video aimed to clarify the distinctions between short polling, long polling, and web sockets.

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Description

Explore web sockets for real-time, bi-directional communication. Understand the advantages of web sockets over short and long polling methods. Ideal for applications needing instant data updates.