单项选择题 YouworkasanASP.NETWebApplicationDeveloperforSomeCompany.ThecompanyusesVisualStudio.NET2010asitsapplicationdevelopmentplatform.YoucreateanASP.NETWebapplicationusing.NETFramework4.0.YouareplanningtodeploytheASP.NETWebapplicationtoaproductionserverbypublishingtheWebapplicationinReleaseconguration.YoumustensurethattheconnectionstringvalueintheWeb.congleisupdatedtothe connectionstringvalueoftheproductionserverduringpublishing.Whatwillyoudo？（）

多项选择题 YouworkasanASP.NETWebApplicationDeveloperforSomeCompany.ThecompanyusesVisualStudio.NET2010asitsapplicationdevelopmentplatform.YouarecreatinganASP.NETWebapplicationusing.NETFramework4.0.TheapplicationholdsaWebpagenamedMyHome.aspx.YouarecreatingabuttonwitharolloverimageonMyHome.aspx.However，whenmousehoveredoverthebuttonimage，therolloverimageisretrievedfromtheserverinaseparaterequest.Youneedtouseanimprovedrolloverbuttoninwhichthebuttonsrolloverimageisalreadydownloadedandstoredinthebrowser’scache，asaresultwhenyouhoveroverthebutton，itisinstantlydisplayed.Whatwillyoudotoaccomplishthis？（）

多项选择题 YouworkasanASP.NETWebApplicationDeveloperforSomeCompany.ThecompanyusesVisualStudio.NET2010asitsapplicationdevelopmentplatform.YoucreateanASP.NETWebsiteusing.NETFramework4.0.Onlyregisteredusersofthecompanywillbeabletousetheapplication.TheapplicationholdsapagenamedUserAccount.aspxthatenablesnewuserstoregisterthemtotheregistereduserslistofthecompany.TheUserAccountpageholdnumerousTextBoxcontrolsthatacceptuserspersonaldetails，suchasusername，password，homeaddress，zipcode，phonenumber，etc.OneoftheTextBoxcontrolsonthepageisnamedZipCodeinwhichauserentersazipcode.YoumustensurethatwhenausersubmitstheUserAccountpage，ZipCodemustcontainvenumericdigits.Whatwillyoudotoaccomplishthis？（）