A page shows live sports scores. Only the server sends updates. Which is the simplest fit over plain HTTP, with reconnects built into the browser?

Options

• ✓ Server-Sent Events (SSE) Correct
• ✗ WebSockets
• ✗ Long polling
• ✗ WebRTC data channels

Why

SSE is a long-lived HTTP response streaming events, and the browser's EventSource reconnects and resumes on its own. WebSockets also work but add a protocol upgrade and two-way framing that one-way updates do not need.

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