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Questions and Answers
What is a key topic in HTTP that largely impacts the performance of websites and Web applications?
In HTTP/1.x, which model involves opening a new connection each time a request is sent and closing it after the response is received?
What is the transport protocol mostly relied on by HTTP?
Which aspect of connection management in HTTP/1.x was a limitation on performance?
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How does the persistent-connection model in HTTP/1.1 differ from the short-lived connections model of HTTP/1.x?
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What is the purpose of HTTP pipelining in connection management?
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Which statement accurately describes the connection between two consecutive nodes in HTTP?
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What term refers to sending several successive HTTP requests without waiting for an answer in HTTP connection management?
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How does the number of requests required by modern web pages impact the efficiency of the earlier short-lived connection model in HTTP?
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Which model in HTTP/1.1 reduces the latency in the network by sending several successive requests without waiting for an answer?
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Study Notes
Connection Management in HTTP
- Connection management significantly impacts website and web application performance.
- HTTP relies on TCP as its transport protocol for establishing connections between clients and servers.
Early Model: Short-Lived Connections
- Initial HTTP model used short-lived connections, creating a new connection for each request and closing it once the response was received.
- This model was inefficient due to resource-intensive TCP connection openings.
- Multiple messages were exchanged between client and server, affecting performance due to network latency and bandwidth.
- Modern web pages requiring multiple requests (a dozen or more) made this model impractical.
Newer Models in HTTP/1.1
Persistent Connections
- The persistent-connection model keeps connections open between successive requests, reducing time spent opening new connections.
HTTP Pipelining
- The HTTP pipelining model sends multiple successive requests without waiting for a response, significantly reducing network latency.
Key Aspect of Connection Management
- Connection management in HTTP applies to the connection between two consecutive nodes (hop-by-hop) and not end-to-end.
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Description
Explore the different connection management models in HTTP/1.x, including short-lived connections, persistent connections, and HTTP pipelining. Learn about the impact of connection management on website and web application performance, and how HTTP relies on TCP for its transport protocol.
