Final answer:
HTTP/2 offers key advantages over HTTP 1.1, including multiplexing for simultaneous requests, header compression for reduced overhead, server push for improved resource delivery, and stream prioritization for better use of bandwidth.
Step-by-step explanation:
Advantages of HTTP/2 over HTTP 1.1
HTTP/2 introduces several enhancements over the previous HTTP 1.1 protocol, which improve the efficiency and speed of data transmission over the web. Some of the key advantages include:
- Multiplexing: HTTP/2 allows multiple requests and responses to be sent simultaneously over a single TCP connection, effectively eliminating the limitations caused by HTTP 1.1's one-request-per-connection process.
- Header Compression: In HTTP/2, headers are compressed using the HPACK algorithm, which drastically reduces overhead, especially in situations where similar headers are repetitively sent over the network.
- Server Push: With server push, servers can preemptively send resources that they anticipate the client will need, saving the client from having to explicitly request each resource, thereby reducing latency.
- Stream Prioritization: Requests in HTTP/2 can be assigned priority levels, allowing more important resources to be sent first, which results in more efficient use of the connection and faster page load times.
These enhancements contribute to a more responsive and efficient web, helping web applications and sites to load faster and respond more quickly to user interactions.