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You work as the developer in an IT company. Recently your company has business with a big client. Now the client needs an undo buffer which stores data modifications. Your company asks you to create an undo buffer for the undo. The undo functionality must undo the most recent data modifications first. Besides this, the undo buffer only allows the storage of strings. You must ensure this two. In the options below, which code segment should you use?

• A. Stack undoBuffer = new Stack();
• B. Queue<string> undoBuffer = new Queue<string>();
• C. Queue undoBuffer = new Queue();
• D. Stack<string> undoBuffer = new Stack<string>();

You work as the developer in an IT company. Recently your company has a big customer. The customer is a large international compay. You're appointed to provide technical support for the customer. Now according to the customer requirement, you create a Web application for the company's intranet. The company wants to enable users to customize their versions of the intranet home page. You create sections of content as Web Parts. You need to ensure that users can customize content at any time. In the options below, which code segment should you use?( choose more than one)

• A. <asp:WebPartZone ID="WebPartZone1" Runat="server"> <ZoneTemplate> </ZoneTemplate></asp:WebPartZone>
• B. <asp:ProxyWebPartManager ID="ProxyWebPartmanager1" Runat="server" />
• C. <asp:ConnectionsZone ID="ConnectionsZone1" Runat="server"> <ConnectVerb Enabled="true" /></asp:ConnectionsZone>
• D. <asp:CatalogZone ID="CatalogZone1" Runat="server"> <ZoneTemplate> <asp:PageCatalogPart Runat="server" ID="PageCatalogPart1" /> </ZoneTemplate></asp:CatalogZone>

You have just graduated from college, now you are serving the internship as the software developer in an international company. According to the requirements of the company CIO, you're developing a Web application. The Web application contains two distinct UIs, one is targeted to mobile devices which might or might not support cookies and relative URLs, another to desktop browsers. Users request the Default.aspx page. You have to redirect users to the appropriate UI, on the basis that whether they are using a mobile device or a desktop browser. What should you do?

• A. Add the following code segment to the Page_Load event of Default.aspx. If Request.Browser("IsMobileDevice") = "true" Then Response.Redirect("MobileDefault.aspx")Else Response.Redirect("DesktopDefault.aspx")End If
• B. Add the following code segment to the Page_Load event of Default.aspx. If Request.Browser.Type = "MobileDevice" Then Response.Redirect("MobileDefault.aspx")Else Response.Redirect("DesktopDefault.aspx")End If
• C. Add the following node to the <system.web> element of the Web.config file. <httpRuntime useFullyQualifiedRedirectUrl="true" />
• D. Add the following node to the <system.web> element of the Web.config file. <httpRuntime useFullyQualifiedRedirectUrl="false" />

You have just graduated from college, now you are serving the internship as the software developer in an international company. According to the requirements of the company CIO, you create a Web Form which is for members only. The behavior of the Web site varies according to the role of the user. The Web site creates user accounts by using the ASP.NET Membership control. You have to identify whether a user is a member of a particular role. What should you do?

• A. You should pass the user names and passwords to Membership.ValidateUser.
• B. You should pass the role names to Roles.RoleExists.
• C. You should pass the user names to Membership.GetUser.
• D. You should pass the role names to User.IsInRole.

You work as the developer in an IT company. Recently your company has a big customer. The customer runs a large supermarket chain. You're appointed to provide technical support for the customer. Now according to the customer requirement, a Web site has been created. An EditorZone control has been added to the home page on the Web site. Now the customer wants to enable users to customize the size and location of the Web Parts on their home pages. You have to achieve this for the customer. In the options below, which control should be added to the EditorZone control? (choose more than one)

• A. You should add BehaviorEditorPart to the EditorZone control.
• B. You should add LayoutEditorPart to the EditorZone control.
• C. You should add PropertyGridEditorPart to the EditorZone control.
• D. You should add AppearanceEditorPart to the EditorZone control.