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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 are creating a method to call a COM component. You have to explicitly request the runtime to perform a full stack walk by using declarative security. You must make sure that before the callers execute your method, all callers have the required level of trust for COM interop. So on the method, which attribute should you place?

• A. <SecurityPermission( _ SecurityAction.Assert, _ Flags:=SecurityPermissionFlag.UnmanagedCode) _>
• B. <SecurityPermission( _ SecurityAction.LinkDemand, _ Flags:=SecurityPermissionFlag.UnmanagedCode) _>
• C. <SecurityPermission( _ SecurityAction.Demand, _ Flags:=SecurityPermissionFlag.UnmanagedCode) _>
• D. <SecurityPermission( _ SecurityAction.Deny, _ Flags:=SecurityPermissionFlag.UnmanagedCode) _>

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, for a Web site, you create a personalized home page by using a series of Web Parts. The Web site does not use a master page. You have to enable the Web Parts to communicate with one another. Which control should you add to the personalized home page?

• A. You should add WebPartManager to the personalized home page.
• B. You should add WebPartZone to the personalized home page.
• C. You should add ProxyWebPartManager to the personalized home page.
• D. You should add PageCatalogPartto the personalized home page.

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 are creating a custom user control which will be used on 10 Web Forms for an ASP.NET Web site. Users can register and log on to a personalized experience by using the ASP.NET Web site. The custom user control uses two TextBox controls and two Button controls. You must make sure that only when users are not logged on to the Web site, the controls are visible. Besides this, you must reduce the amount of effort in developing and maintaining the Web site. So what should you do? (choose more than one)

• A. You should add the OnClick event handler for the Login button to the code used in the custom user control.
• B. In the Page_Load method of the Web Form, add a code segment to set the visibility of the TextBox and Button controls where the control is added.
• C. In the Page_Load method of the custom user control, add a code segment to set the visibility of the TextBox and Button controls.
• D. You should add the OnClick event handler for the Login button to the code used in the Web Form where the control is added.

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, you are creating a method to hash data with the Secure Hash Algorithm. The data is passed to your method as a byte array named message. You have to use SHA1 to compute the hash of the incoming parameter. Besides this, the result has to be placed into a byte array named hash. In the options below, which code segment should you use?

• A. SHA1 sha = new SHA1CryptoServiceProvider();sha.GetHashCode();byte[] hash = sha.Hash;
• B. SHA1 sha = new SHA1CryptoServiceProvider();byte[] hash = BitConverter.GetBytes(sha.GetHashCode());
• C. SHA1 sha = new SHA1CryptoServiceProvider();byte[] hash = null;sha.TransformBlock( message, 0, message.Length, hash, 0);
• D. SHA1 sha = new SHA1CryptoServiceProvider();byte[] hash = sha.ComputeHash(message);

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 application which contains two settings in the Web.config file. The application has been deployed to production. In the production environment, you have to modify the application settings while not editing the XML markup in the Web.config file manually. What should you do?

• A. You should use the Web Site Administration Tool to modify the application settings.
• B. You should use the Visual Studio property page editor for the project to modify the application settings.
• C. Modify the application settings by using the resource editor.
• D. You should use the Visual Studio start options editor to modify the application settings.