违法和不良信息举报 联系客服
免费注册 登录

A web browser need NOT always perform a complete request for

题目
单选题
A web browser need NOT always perform a complete request for a particular page that it suspects mightNOT have changed. The HTTP specification provides a mechanism for the browser to retrieve only a partialresponse from the web server； this response includes information， such as the Last-Modified date but NOTthe body of the page. Which HTTP method will the browser use to retrieve such a partial response？（）
A

GET

B

ASK

C

SEND

D

HEAD

E

TRACE

参考答案和解析
正确答案： C
解析： 暂无解析
如果没有搜索结果或未解决您的问题，请直接 联系老师 获取答案。
相似问题和答案

第1题：

If you need to access information and know where it is on the Web, you only need to enter the entire www address into your browser’s Uniform. Resource Locator (URL) field.()

此题为判断题(对，错)。


正确答案:正确

第2题：

The Hypertext Transfer Protocol , the Web's (请作答此空) protocol , is at the heart of the Web. HTTP is implemented in two programs : a ( ) program and a server program . The client program and server program executing on different end systems , talk to each other by ( ) HTTP messages . HTTP defines how Web clients request Web pages from servers and how servers transfer web pages to clients . when a user ( ) a web page , the browser sends http request messages for the objects in the page to the server . The server ( ) the requests and responds with http response messages that contain the objects .

A.transport-layer
B.application-layer
C.network-layer
D.link-layer

答案：B
解析：
Web的应用层协议是超文本传输协议，是web核心。HTTP在两类程序（客户端程序、服务器端程序）中执行。客户端程序、服务器端程序在不同的终端系统中执行，通过交换HTTP消息来进行交互。HTTP定义了Web客户端如何从服务器端请求Web页面以及服务器端如何传送Web页面到服务器。当用户请求一个web页面，浏览器发送页面对象的http请求给服务器。服务器接收请求并用包含对象的http消息进行响应。

第3题：

The Web Browser is a simple program that enables a computer to(71)and view pages on the Web．

A．downfall

B．downgrade

C．downward

D．download


正确答案：D
解析：上网用的浏览器是一种简单的程序，它使计算机能下载并显示网页。

第4题：

A user reports they can no longer change the web browser home page. Which of the following is MOSTlikely the problem? （）

  • A、They are using the wrong WEP key.
  • B、They have been infected with malware.
  • C、They have lost Internet connectivity.
  • D、They need to update their network device drivers.

正确答案:B

第5题：

用户登录“大集中”征管系统，同时开启web browser和java client，如果关闭了web browser，那么java client就不能正常运行。


正确答案:错误

第6题：

The Hypertext Transfer Protocol , the Web's ( ) protocol , is at the heart of the Web. HTTP is implemented in two programs : a ( ) program and a server program . The client program and server program executing on different end systems , talk to each other by (请作答此空) HTTP messages . HTTP defines how Web clients request Web pages from servers and how servers transfer web pages to clients . when a user ( ) a web page , the browser sends http request messages for the objects in the page to the server . The server ( ) the requests and responds with http response messages that contain the objects .

A.exchanging
B.changing
C.declining
D.removing

答案：A
解析：
Web的应用层协议是超文本传输协议，是web核心。HTTP在两类程序（客户端程序、服务器端程序）中执行。客户端程序、服务器端程序在不同的终端系统中执行，通过交换HTTP消息来进行交互。HTTP定义了Web客户端如何从服务器端请求Web页面以及服务器端如何传送Web页面到服务器。当用户请求一个web页面，浏览器发送页面对象的http请求给服务器。服务器接收请求并用包含对象的http消息进行响应。

第7题：

The Hypertext Transfer Protocol,the Web's（请作答此空）protocol,is at the heart of the Web.HTTP is implemented in two programs:a（ ）program and a server program.The client program and server program executing on different end systems,talk to each other by（ ）HTTP messages.HTTP defines how Web clients request Web pages from servers and how servers transfer web pages to clients.when a user（ ）a web page,the browser sends http request messages for the objects in the page to the server.The server（ ）the requests and responds with http response messages that contain the objects.

A.transport-layer
B.application-layer
C.network-layer
D.link-layer

答案：B
解析：
Web的应用层协议是超文本传输协议，是web核心。HTTP在两类程序（客户端程序、服务器端程序）中执行。客户端程序、服务器端程序在不同的终端系统中执行，通过交换HTTP消息来进行交互。HTTP定义了Web客户端如何从服务器端请求Web页面以及服务器端如何传送Web页面到服务器。当用户请求一个web页面，浏览器发送页面对象的http请求给服务器。服务器接收请求并用包含对象的http消息进行响应。

第8题：

WWW is popular for its multimedia transmission and friendly(71). Although the speed of network has been improved considerably in recent years, the rapid(72)of using the Internet, the inherited character of delay in the network and the Request/Response working mode of WWW still make the Internet traffic very(73)and give no guarantee on the Quality of Service. Because HTTP has no states, the web server cannot know the users' demand and the users' requests cannot be predicted Taking advantage of a cache mechanism and the time locality of WWW accesses, the browser can preserve the documents ever accessed in the local machine. By this means, for the documents in the local cache, the browser does not need to send the requests to the remote server or to receive the whole responses from the remote one Pre-fetching uses the space locality of accesses First, the users' access requests are predicted according to the users' current request. Secondly, the expected pages are fetched into the local cache when the user is brow sing the current page. Finally, the users can access these pages downloaded from the local cache. And this can reduce the access delay to some degrees. Pre-fetching is one kind of active caches that can cache the pages which are still not requested by the user. The application of pre-fetching technology in the web can greatly reduce the waiting time after users have sent their requests. This paper brings forward an intelligent technique of web pre-fetching, which can speed up fetching web pages. In this technique, we use a simplified WWW data model to represent the data in the cache of web browser to mine the association rules. We store these rules in a knowledge base so as to(74)the user's actions. In the client sides, the agents are responsible for mining the users' interest and pre-fetching the web pages, which are based on the interest association repository. Therefore it is(75)for the users to speed up the browsing.

A．interactive

B．interaction

C．interactivity

D．infection


正确答案：C

第9题：

Which is the true choice about the web container request processing model（）？

  • A、 The init method on a filter is called the first time a servlet mapped to that filter is invoked
  • B、 A filter defined for a servlet must always forward control to the next resource in the filter chain.
  • C、 Filters associated with a named servlet are applied in the order they appear in the web application deployment descriptor file
  • D、 If the init method on a filter throws an UnavailableException， then the container will make no further attempt to execute it

正确答案:C

第10题：

You are creating a web form with this HTML： 11. 12. 13. 14. 15. Which HTTP method is used when sending this request from the browser？（）

  • A、GET
  • B、PUT
  • C、POST
  • D、SEND
  • E、FORM

正确答案:A

更多相关问题
相关内容