● WebSQL is a SQL-like ___(71)___ language for extracting information from the web. Its capabilities for performing navigation of web ___(72)___ make it a useful tool for automating several web-related tasks that require the systematic processing of either all the links in a ___(73)___ , all the pages that can be reached from a given URL through ___(74)___ that match a pattern, or a combination of both. WebSQL also provides transparent access to index servers that can be queried via the Common ___(75)___ Interface.

试卷相关题目

• 1● Originally introduced by Netscape Communications,___(66)___ are a general mechanism which HTTP Server side applications, such as CGI (67) , can use to both store and retrieve information on the HTTP ___(68)___ side of the connection. Basically, Cookies can be used to compensate for the ___(69)___ nature of HTTP. The addition of a simple, persistent, client-side state significantly extends the capabilities of WWW-based ___(70)___ .

  A.Browsers

  B.Cookies

  C.Connections

  D.Scripts

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• 2● 某校园网用户无法访问外部站点210.102.58.74，管理人员在windows 操作系统下可以使用___(65)___判断故障发生在校园网内还是校园网外。

  A.ping 210.102.58.74

  B.tracert 210.102.58.74

  C.netstat 210.102.58.74

  D.arp 210.102.58.74

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• 3● “<title style="italic">science</title>”是一个XML 元素的定义，其中元素标记的属性值是___(64)___。

  A.title

  B.style

  C.italic

  D.science

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• 4● CDMA 系统中使用的多路复用技术是___(62)___。我国自行研制的移动通信3G 标准是___(63)___。

  A.时分多路

  B.波分多路

  C.码分多址

  D.空分多址

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• 5● 与多模光纤相比较，单模光纤具有___(61)___等特点。

  A.较高的传输率、较长的传输距离、较高的成本

  B.较低的传输率、较短的传输距离、较高的成本

  C.较高的传输率、较短的传输距离、较低的成本

  D.较低的传输率、较长的传输距离、较低的成本

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