Question

Week 11 - How does the client listen to messages from the server in

Option 1: Implementing a WebSocket connection for real-time message reception.
Option 2: Polling the server at regular intervals for incoming messages.
Option 3: Utilizing AJAX requests to retrieve messages asynchronously.
Option 4: Setting up a server-side push mechanism for message delivery.

Answer 1

The client can listen to messages from the server using WebSocket for real-time communication, polling for periodic checks, AJAX for asynchronous updates, or a server-side push mechanism for automatic message delivery.

Step-by-step explanation:

The question asks how a client can listen to messages from the server using different techniques. First, Option 1 involves implementing a WebSocket connection, which establishes a persistent, full-duplex communication channel that allows the server to send messages to the client in real-time. Second, Option 2 refers to the client polling the server at regular intervals, which means the client periodically sends a request to the server to check for new messages. Third, in Option 3, the client uses AJAX requests to retrieve messages asynchronously, allowing the web page to update with new messages without refreshing. Lastly, Option 4 discusses a server-side push mechanism such as Server-Sent Events (SSE), where the server sends messages to the client when new data is available.