In HTTP/1.1, connections are persistent by default, meaning that multiple requests can be sent over a single connection without reopening it.

SSL stands for Secure Socket Layer, which is a protocol for establishing a secure connection between a web server and a client.

The 'Content-Type' header in an HTTP response indicates the media type of the resource being sent, allowing the client to understand how to process it.

The 'Cache-Control' header is used to specify directives for caching mechanisms in both requests and responses, controlling how resources are cached.

The HTTP status code 404 indicates that the requested resource could not be found on the server.

The 'Content-Type' header indicates the media type of the resource being sent in the HTTP response, helping the client understand how to process it.

The 'User-Agent' header is used to identify the client software making the request, providing information about the browser and operating system.

The 'User-Agent' header in an HTTP request identifies the client software making the request, allowing the server to tailor responses accordingly.

The GET method is considered idempotent and safe, meaning it can be called multiple times without changing the state of the resource.

The PUT method is idempotent, meaning that making the same request multiple times will not change the outcome beyond the initial application.

The GET method is used to request data from a specified resource, allowing clients to retrieve information from the server.

HTTP/2 introduces multiplexing, allowing multiple requests and responses to be sent simultaneously over a single connection.

The HTTP status code 200 indicates a successful request, meaning the server has successfully processed the request.

5050 is not a valid HTTP status code; valid codes are typically three digits, such as 200, 301, and 404.

HTTPS (Hypertext Transfer Protocol Secure) is used to secure HTTP traffic by encrypting the data transmitted between the client and server.