首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
计算机
WWW is popular for its multimedia transmission and friendly(71). Although the speed of network has been improved considerably in
WWW is popular for its multimedia transmission and friendly(71). Although the speed of network has been improved considerably in
admin
2009-02-15
20
问题
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.
选项
A、quick
B、rapid
C、complicated
D、slow
答案
D
解析
转载请注明原文地址:https://kaotiyun.com/show/M2xZ777K
本试题收录于:
软件设计师上午基础知识考试题库软考中级分类
0
软件设计师上午基础知识考试
软考中级
相关试题推荐
阅读以下说明,回答以下问题,将解答填入答题纸对应的解答栏内。【说明】某学校有三个校区,校区之间最远距离达到61km,学校现在需要建设校园网,具体要求如下:校园网通过多运营商接入互联网,主干网采用千兆以太网将使每个校区的中心节点连起来,每
阅读以下说明。回答以下问题,将解答填入答题纸对应的解答栏内。【说明】某公司计划部署园区网络,其建筑物分布如下图所示。根据需求分析结果,网络规划要求如下:1.网络中心机房在信息大楼。2.设计中心由于业
阅读以下说明,回答问题。(2009年上半年,试题二)[说明]某公司总部服务器1的操作系统为WindowsServer2003,需安装虚拟专用网(VPN)服务,通过Internet与子公司实现安全通信,其网络拓扑结构和相关参数如图6-35所示。
阅读以下说明,回答问题。[说明]某公司的两个部门均采用Windows2003的NAT功能共享宽带连接访问Internet,其网络结构和相关参数如图4-170所示。ISP为该公司分配的公网IP地址段为2021171232/29。部
802.11a工作在全球通用的工(62)ISM频段,最高数据速率可达(63)。
在一个单CPU的计算机系统中,采用可剥夺式(也称抢占式)优先级的进程调度方案,且所有任务可以并行使用I/O设备。下表列出了三个任务T1、T2、T3的优先级、独立运行时占用CPU和FO设备的时间。如果操作系统的开销忽略不计,这三个任务从同时启动到全部结束的总
下列关于PGP(PrettyGoodPrivacy)的说法,错误的是(37)。
IPv6是下一代IP协议。IPv6的基本报头包含(26)B,此外还可以包含多个扩展报头。基本报头中的(27)字段指明了一个特定的源站向一个特定目标站发送的分组序列,各个路由器要对该分组序列进行特殊的资源分配,以满足应用程序的特殊传输需求。一个数据流由(28
SOXisanalternativesyntaxfor(71).ItisusefulforreadingandcreatingXMLcontentinatexteditor.Itistheneasilytran
ARPAnetisawideareanetwork(WAN).AnetworkthatconnectedDepartmentofDefenseresearchsitesacross(1).Createdin1969wit
随机试题
中国所采用的历法属于【】
A.燥湿化痰,理气和中B.理气化痰,和胃利胆C.清热化痰,宽胸散结D.燥湿化痰,平肝息风E.润肺清热,理气化痰
从买方的角度来看,房地产价格是基于其社会上的生产费用,类似于(),是买方愿意支付的最高价格不能高于他预计重新开发该房地产的必要支出及应得利润。
下列关于投资项目风险因素识别的表述错误的是()。
建设工程项目施工质量验收时,对施工质量保证资料的检查包括施工全过程的技术质量管理资料。其中,又以原材料、施工检测、测量复核及()资料为重点检查内容。
当公司信贷业务人员对财务状况进行监控时,通常企业的财务风险主要体现在()。
你新到单位,领导安排你和老同事一起工作,但老同事不配合你,你该怎么办?
计算曲线y=ln(1-x2)上相应于的一端弧的长度.
ToimprovethetiesbetweenChinaandtheU.S.andWesternEurope,China______.FromthenewsinMiamiweknow______.
A、Theplanetmustbeasbigandheavyastheearth.B、Properconditionsareessentialtotheexistenceoflife.C、Doublestarsc
最新回复
(
0
)