單項選擇題

You create a Web site that is for members only. The behavior of the Web site changes according to the role of the user. The Web site uses the ASP.NET Membership control for creation of user accounts. You need to find out whether a user is a member of a particular role. What should you do?（）

A. Pass the user names and passwords to Membership.ValidateUser.
B. Pass the role names to User.IsInRole.
C. Pass the role names to Roles.RoleExists.
D. Pass the user names to Membership.GetUser.

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單項選擇題

You are working on an existing Web site. You need to secure the Web site by redirecting all users to the logon page, Login.aspx. After logging on, users must be sent back to the page that they originally requested. Which code segment should you use? （）

A. In the Web.config file: <authorization> <deny users="?" /></authorization> On each page in the Web site: Protected Sub Page_Load(ByVal sender As Object, _ ByVal e As System.EventArgs) Handles Me.Load FormsAuthentication.Initialize() End Sub
B. On each page in the Web site: Protected Sub Page_Load(ByVal sender As Object, _ ByVal e As System.EventArgs) Handles Me.Load FormsAuthentication RedirectToLoginPage("login.aspx") End Sub
C. On each page in the Web site: Protected Sub Page_Load(ByVal sender As Object, _ ByVal e As System.EventArgs) Handles Me.Load Response.Redirect("login.aspx") End Sub
D. In the Web.config file: <authentication mode="Forms"> <forms name=".ASPXUSERDEMO" loginUrl="login.aspx" protection="All" timeout="60" /></authentication>

多項選擇題

You develop a Web application that writes data to a file on a server. You restrict access to the file to specific Windows users. The Web application runs as CONTOSO\ASPNET. You deny anonymous access to the application in IIS. You add the following XML segment in the Web.config file.You need to ensure that the application meets the following requirements:It must impersonate the user when it writes data to the file.It must run as CONTOSO\ASPNET when a user does not access the file. Which two actions should you perform? （）

A. Use the following XML segment in the Web.config file. <identity impersonate="false"/>
B. Use the following XML segment in the Web.config file. <identity impersonate="true"/>
C. Use the following code segment to access the file. Dim wp As WindowsPrincipal = _CType(HttpContext.Current.User, WindowsPrincipal) Dim wi As WindowsIdentity = WindowsIdentity.GetCurrent() Dim wic As WindowsImpersonationContext = wi.Impersonate()' Access the file herewic.Undo()
D. Use the following code segment to access the file. Dim wi As WindowsIdentity = WindowsIdentity.GetCurrent()Dim wic As WindowsImpersonationContext = _WindowsIdentity.Impersonate(wi.Token)' Access the file herewic.Undo()