net考证试题（.net考证试题）

net考证试题（.net考证试题）net考证试题(.net考证试题)ThefirstpartiswrittenexaminationFirst,themultiple-choicequestion1,abouttheHTMLTABLEstatement,theerroris:(C)ThewidthpropertyoftheAtablecanbesettoapixelvalueorpercentage.TheheightpropertyoftheBtablecanbesettoapixelvalueorpercentage.Ciftheborderpropertyisnotspecified,thedefaultwidthoftheformis1.TheDtableandthebackgroundcolorofthecellcanbesetatthesametime.2.Whichofthefollowingobjectsisusedtoestablishaconnectionwiththedatasource:(B)ACommandBConnectionCDataReaderDDataAdapter3、whendoestheSession_StarteventintheGlobal,asaxfileexcite(B)?AfiresatthebeginningofeachrequestBattemptstofirewhenusingauthenticationCfireswhenthesessionisstartedDfireswhenapplicationstarts4,HTMLusesanchortags(a)tocreatealinktoanotherfile,thelinkedresource(D).AcanonlybeHTMLpagesandimagesBcannotbesoundCcan'tbeamovieDcanbeanyresourceonthenetwork5,regardingtheHTMLframeworkstatement,theerroris:(A)TheAframetagdefineshowtosplitawindowintoaframework.Bcanwritenoframestagstobrowsersthatdonotsupportframes.TheindividualpagesintheCHTMLframeworkareindependentofeachother.TheuseoftheDHTMLframeworkmakesprintingtheentirepagedifficult.6.Whichofthefollowingfilesistheglobalconfigurationfile(B)?AGlobal,asaxBWeb.configCStyles,cssDAssemblylnfo.vb7,thefollowingstatementiscorrect(B)ThereissomethingdynamicontheApage,thatis,dynamicwebpagesBstaticwebpageshavefixedcontentandinteractivitycanbeworsethandynamicwebpagesC,ASP,JSP,andASP.NETtechnologiesallembedscriptinglanguagesintoHTMLdocumentsTheDASP.NETprogram,liketheASPprogram,isinterpretedandexecuted8,whenyouaccessanSqlServerdatabaseinaASP.NETapplication,thenamespaceyouneedtoimportis(B)A,System.Data.Oracle,B,System.Data.,SqlClientCSystem.Data.ODBCDSystem.Data.OleDB9,youcanusethebuilt-inobject(D)topassvaluesacrosseachpageofyourapplicationARequestBApplicationCSessionDaboveisOK10,ifyouneedtoensurethatusersentervaluesgreaterthan30,youshoulduse(C)validationcontrolsARequiredFieldValidatorBCompareValidator CRangeValidatorDRegularexpression_rValidator11whichofthefollowingisnottheDofthewebpagefile?A,HTM,B,ASPX,C,ASP,D,TXT12.HowmanyminutesisthedefaultvalidityoftheSessionobject:(C)A10,B15,C20,Dapplications,fromstarttofinishSecuritytip:ifthereisanypropertyinvolvedinthechat,pleasecheckyourfriend'sidentityfirst.SendauthenticationquestionsorclickonthereportNepenthes16:06:3813.ThefollowingvalidationcontrolforASP.NETdescribestheerroras(A)AcanbevalidatedonboththeclientandserversideB,itsclientauthenticationandserver-sidevalidationapplytoallbrowsersCifthepagecallsmorethanonevalidationcontrol,whenoneofthemisnotvalidated,TheentirepagewillnotbevalidatedDaservercontrolcanbeverifiedbymultiplevalidationcontrolsatthesametime14,thefollowingstatementaboutoverloadingisincorrect(C)TheAmethodnameisthesameTheBparameterlistisdifferentCreturnvaluetypesaredifferentTheDmethodsigningisdifferent15,onthedifferencebetweenOverloadandOverride,thedescriptionisincorrect(D)AoverloadreferstooverloadingBoverridemeansrewritingC,override,andvirtualappearinpairsDisoverriddenwithNew,andoverrideisoverridden16,aboutpolymorphism,thefollowingstatementiscorrect(D)ApolymorphismmeansoverloadingBpolymorphismmeansrewritingTheCpolymorphismisasubclassobjecttothesuperclassobjecttouseDabovestatementisincorrect17.Whatisthecontentweseeinthebrowserafterthefollowingprogramhasbeenexecuted?(A)%Response.WriteaSinahref=''/a%ASina,B,a,href=''，Sina,/aCSinaD,thissentenceiswrong,nothingshowsTwo.Fillintheblanks1.knownstr=1234567890Left(STR,2)=12Right(STR,2)=90Len(STR)=10Mid(STR,3), 3)=3452o要求。从和请求。QueryString对应的是形式提交时的两种不同提交方法：—取得客户端在从表单中所输入的信息方法和从查询字符串中读取用户提交的数据—方法三.应用供应两个事务：—application_onstart,应用起先的时候调用该事务；application_onend,应用结束时调用该事务4。服务器。听是把—虚拟路径—转换为—实际的物理路径—50ADO模型定义了3个一般对像，分别为一连接—对象、—叮嘱_对象、datareader_对象。6oC#中重载和重写分别对应overload和override关键字7。几乎全部的HTML标记都可以转化为HTML服务器控件，只须要在标记中加入_runat二服务器即可8。控件TextBox的AutoPostBack属性的作用是—自动提交—9O服务器。mappath()方法的主要功能是10。叮嘱对象executenoquery()方法的功能是—执行非查询T-SQL语句—IE多态包括—运行时—多态和—编译时—多态12。重载指的是同一个类中的两个方法—方法名—相同，—参数列表不同13。面对对象的语言的三个主要特性是—封装_、—继承和—多态—O14oaspx网页的代码储存模式有两种，它们是一代码分别模式—和—单一模式.代码分别模式。15o当一个Web控件上发生的事务须要立刻得到响时，应当将他的AutoPostBack属性设置为真实。三、推断题(正确的在括号内填，错误的填)lo离开了网站，ASP网页能够单独运行()。2O网站配置是网站中必需的配置文件()。30href属性不能用来指定到一个邮箱地址()4、HS可以同时管理多个应用程序()5、HS要求默认文档的文件名必需为默认或指数，扩展名则可以是.htm、ASP等已为服务器支持的文件扩展名()o四、简答题lo假如在一个B/S结构的系统中须要传递变量值但是又不能运用会话cookie,、、应用，您有几种方法进行处理？答：this,server,transfer响应。redirect() 查询2。GC是什么？为什么要有GC?答：GC是垃圾收集器程序员不用担忧内存管理，因为垃圾收集器会自动进行。理要请求垃圾收集，可以调用下面的方法之一：gc()系统。运行时。getruntime()。gc()3o接口是否可继承接口？抽象类是否可实现(实现)接口？抽象类是否可继承实体类(具体类)？答：接口可以继承接口。抽象类可以实现(实现)接口，抽象类是否可继承实体类，但前提是实体类必需有明确的构造函数4。strings二新的字符串(XYZ)；创建了几个字符串对象？答：两个对象，一个是XYX,一个是指向xyx的引用对象S.5o覆盖与重载的区分答：重载是方法的名称相同。参数