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

). For this reason, only HEAD plus some GET requests (i.e. limited to real file requests and so with URLs with out query string utilized for a command, and many others.) may be pipelined in a secure and idempotent manner. Right after many years of battling the problems launched by enabling pipelining, this attribute was first disabled and afterwards removed from most browsers also due to the declared adoption of HTTP/2.

The HTTP protocol makes it attainable for shopper gadgets utilizing browser apps to communicate with and obtain information from World-wide-web servers over the internet. An internet server provides Web-site content to the consumer's web browser upon acquiring these types of requests from your browser. An online browser is really an HTTP consumer that sends requests for details to servers.

It's also crucial to recognize that quite a few web pages could be hosted on one device or a similar community. Distinct Internet sites may even share precisely the same IP address, as They are really routed by the net server according to the Host ask for header.

An HTTP response would be the message that a server sends back to a client in reaction to an HTTP request. It usually is made of a status line, headers, and also a concept body:

Encyclopaedia Britannica's editors oversee issue places during which they've in depth understanding, regardless of whether from years of experience attained by working on that content or through review for a sophisticated diploma. They create new content and verify and edit material acquired from contributors.

Close-to-close encryption means that only the sender and recipients maintain the keys to encrypt and decrypt messages. The service company who controls the technique through which the end users converse has no way of accessing the actual content material of messages.

Given that TCP is connection-dependent and features error-examining mechanisms, it aided ensure the dependable supply and proper Exhibit of Website.

Check Dwell and from unique nations the HTTP responses, redirect chains and status codes of 1 or multiple URLs.

Our ground breaking products and services for learners, authors and clients are dependant on entire world-class study and they are relevant, interesting and inspiring.

The ETag (entity tag) header field is made use of to determine if a cached Edition of your asked for source is similar to The existing Variation of the useful resource around the server. "Material-Type" specifies the Internet media form of the data conveyed via the HTTP information, even though "Material-Length" suggests its duration in bytes. The HTTP/one.one webserver publishes its capacity to reply to requests for specific byte ranges of the doc by location the sphere "Settle for-Ranges: bytes".

The HTTP Authentication specification also presents an arbitrary, implementation-precise build for further more dividing methods frequent to your presented root URI.

可惜也有點小缺點，因為是其他學習者製作的單字卡，所以有時候在測驗的時候一定要按照他上面提供的答案作答，如果有時候出現「一字多譯」的英文單字，就會踢到鐵板，在遊戲中也會不斷被扣分…

This portion lists directives which here can be Utilized in a Permissions-Policy header, with unique documentation webpages that explain how the directives function and how to utilize them.