本測驗並非正式劍橋英語認證測驗,測驗後所得評分僅供考生參考。您在此測驗中的分數無法當作正式語言能力證明
Internet browsers cache Beforehand accessed Website sources and reuse them, Any time doable, to lessen community targeted traffic. HTTP proxy servers at personal network boundaries can facilitate conversation for shoppers and not using a globally routable handle, by relaying messages with exterior servers.
Shopper units submit HTTP requests to servers, which reply by sending HTTP responses again into the shoppers. Requests point out what info the customer is trying to get from the server so that you can load the web site; responses contain code which the client browser will translate right into a webpage.
After a few months about how to proceed to acquire a new version of HTTP, it absolutely was made a decision to derive it from SPDY.[forty]
This header specifies the MIME kind of the data that may be currently being sent in your body from the request, but It isn't Utilized in this example due to the fact that is a GET request and not using a ask for physique.
The authentication mechanisms explained higher than belong on the HTTP protocol and they are managed by consumer and server HTTP program (if configured to call for authentication just before allowing for client entry to one or more Website assets), rather than by the world wide web apps utilizing a Internet software session.
A request system is cacheable if responses to requests with that process may be stored for long run reuse. The methods GET, HEAD, and POST are defined as cacheable.
Contiene la siguiente historieta larga protagonizada por Mortadelo y Filemón, así como otras de complemento protagonizadas por Pepe Gotera y Otilio, aunque no se hace alusión a ello en la portada:
看了那麼多,再讓詹姆士老師跟大家分享他獨門的背單字技巧,結合遊戲和學習,背單字不再是地獄!
W3Schools is optimized for Understanding and schooling. Examples is likely to be simplified to enhance reading and Understanding.
Chrome advises within the HTTPS point out on every single web page which you check out. If you employ Yet another browser, you'll want to be certain you are informed about the way your browser displays different HTTPS states.
HTTP—hypertext transfer protocol—may be the complex indicates by which our browsers hook up read more with websites. HTTPS is really an encrypted HTTP link, making it safer.
HTTP can be a stateless protocol. A stateless protocol won't call for the world wide web server to keep data or status about Every person with the length of numerous requests.
The response header fields enable the server to move added information and facts beyond the position line, performing as reaction modifiers. They provide specifics of the server or about even more use of the goal resource or related resources.