Understanding Web Sockets

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Questions and Answers

What is a primary use case for web sockets?

Downloading large files
Storing data in a database
Sending emails
Real-time communication with multiple clients (correct)

Which communication method is best suited scenarios needing instant updates to many clients?

Short polling
Web Sockets (correct)
Long polling
Email

What type of connection do web sockets maintain?

Intermittent
One-way
Stateless
Persistent (correct)

What is the key benefit of using web sockets?

Real-time, two-way communication (B) Signup and view all the answers

Which of the following is a characteristic of web sockets?

Full-duplex communication (B) Signup and view all the answers

For applications requiring instant updates, which technology is most appropriate?

Web sockets (B) Signup and view all the answers

In what type of applications would web sockets be most beneficial?

Real-time applications (C) Signup and view all the answers

What distinguishes web sockets from traditional HTTP requests?

Web sockets maintain a persistent connection. (D) Signup and view all the answers

What is a key functionality offered by web sockets?

Real-time data transfer (A) Signup and view all the answers

Which term describes the communication flow in web sockets?

Full-duplex (A) Signup and view all the answers

Flashcards

Web Sockets

A communication protocol that provides full-duplex communication channels over a single TCP connection, allowing 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 client makes a request to the server and the server holds the request open until new data is available or a timeout occurs.

Study Notes

Web sockets are ideal for applications needing real-time, bidirectional communication with multiple clients.
Short polling, long polling, and web sockets are different approaches to real-time data transfer.