net考證試題（.net考證試題）

net考證試題（.net考證試題）net考證試題(.net考證試題)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。從和請求。QueryString對應(yīng)的是形式提交時的兩種不同提交方法：—取得客戶端在從表單中所輸入的信息方法和從查詢字符串中讀取用戶提交的數(shù)據(jù)—方法三.應(yīng)用供應(yīng)兩個事務(wù)：—application_onstart,應(yīng)用起先的時候調(diào)用該事務(wù)；application_onend,應(yīng)用結(jié)束時調(diào)用該事務(wù)4。服務(wù)器。聽是把—虛擬路徑—轉(zhuǎn)換為—實際的物理路徑—50ADO模型定義了3個一般對像，分別為一連接—對象、—叮囑_對象、datareader_對象。6oC#中重載和重寫分別對應(yīng)overload和override關(guān)鍵字7。幾乎全部的HTML標(biāo)記都可以轉(zhuǎn)化為HTML服務(wù)器控件，只須要在標(biāo)記中加入_runat二服務(wù)器即可8?？丶extBox的AutoPostBack屬性的作用是—自動提交—9O服務(wù)器。mappath()方法的主要功能是10。叮囑對象executenoquery()方法的功能是—執(zhí)行非查詢T-SQL語句—IE多態(tài)包括—運行時—多態(tài)和—編譯時—多態(tài)12。重載指的是同一個類中的兩個方法—方法名—相同，—參數(shù)列表不同13。面對對象的語言的三個主要特性是—封裝_、—繼承和—多態(tài)—O14oaspx網(wǎng)頁的代碼儲存模式有兩種，它們是一代碼分別模式—和—單一模式.代碼分別模式。15o當(dāng)一個Web控件上發(fā)生的事務(wù)須要立刻得到響時，應(yīng)當(dāng)將他的AutoPostBack屬性設(shè)置為真實。三、推斷題(正確的在括號內(nèi)填，錯誤的填)lo離開了網(wǎng)站，ASP網(wǎng)頁能夠單獨運行()。2O網(wǎng)站配置是網(wǎng)站中必需的配置文件()。30href屬性不能用來指定到一個郵箱地址()4、HS可以同時管理多個應(yīng)用程序()5、HS要求默認(rèn)文檔的文件名必需為默認(rèn)或指數(shù)，擴展名則可以是.htm、ASP等已為服務(wù)器支持的文件擴展名()o四、簡答題lo假如在一個B/S結(jié)構(gòu)的系統(tǒng)中須要傳遞變量值但是又不能運用會話cookie,、、應(yīng)用，您有幾種方法進(jìn)行處理？答：this,server,transfer響應(yīng)。redirect() 查詢2。GC是什么？為什么要有GC?答：GC是垃圾收集器程序員不用擔(dān)憂內(nèi)存管理，因為垃圾收集器會自動進(jìn)行。理要請求垃圾收集，可以調(diào)用下面的方法之一：gc()系統(tǒng)。運行時。getruntime()。gc()3o接口是否可繼承接口？抽象類是否可實現(xiàn)(實現(xiàn))接口？抽象類是否可繼承實體類(具體類)？答：接口可以繼承接口。抽象類可以實現(xiàn)(實現(xiàn))接口，抽象類是否可繼承實體類，但前提是實體類必需有明確的構(gòu)造函數(shù)4。strings二新的字符串(XYZ)；創(chuàng)建了幾個字符串對象？答：兩個對象，一個是XYX,一個是指向xyx的引用對象S.5o覆蓋與重載的區(qū)分答：重載是方法的名稱相同。參數(shù)