Website Developer Question:

Download Job Interview Questions and Answers PDF

Tell me what is long polling?

Website Developer Interview Question
Website Developer Interview Question

Answer:

Long polling is a web application development pattern used to emulate pushing data from the server to the client. When the long polling is used, the client sends a request to the server, and the connection remains intact until the server is ready to send data to the client. The connection will be closed only after the data is sent back to the client or connection timeout occurs.

Download Website Developer Interview Questions And Answers PDF

Previous QuestionNext Question
Please explain what is CORS? How does it work?Tell us do you find any particular languages or technologies intimidating?