You work as the developer in an IT company. Recently your company has a client. The client needs a class. Your company asks you to develop a custom-collection class. In this class, a method has to be created. After the method has been created, the method has to return a type. And the type should be compatible with the Foreach statement.
Which criterion should the method meet?

• A. The method must return a type of IComparable.
• B. The method must explicitly contain a collection.
• C. The method must return a type of either IEnumerator or IEnumerable.
• D. The method must be the only iterator in the class.

You work as the developer in an IT company. There's a Web site that uses custom Themes. Your Web site must support additional Themes based on the user's company name. When a user logs on to the Web site, the company named is set. The company's Theme name is stored in a variable named ThemeName. You have to dynamically set the Web site's Theme by using this variable. So what should you do?

• A. The following code segment should be added to the PreInit event of each page on the Web site. Page.Theme = ThemeName;
• B. The following code segment should be added to the Load event of each page on the Web site. Page.Theme = ThemeName;
• C. The following code segment should be added to the Web site's configuration file. <pages theme="ThemeName" />
• D. The following code segment should be added to the markup source of each page on the Web site. <%@ Page Theme="ThemeName" ... %>

You have just graduated from college, now you are serving the internship as the software developer in an international company. You need to add a string named strConn to the connection string section of the application configuration file. You plan to write a code segment to achieve this. So what code segment should you write?

• A. ConfigurationManager.ConnectionStrings.Add( New ConnectionStringSettings("ConnStr1", strConn))Dim myConfig As Configuration = _ ConfigurationManager.OpenExeConfiguration( _ ConfigurationUserLevel.None)myConfig.Save()
• B. Dim myConfig As Configuration = _ConfigurationManager.OpenExeConfiguration( _ ConfigurationUserLevel.None)myConfig.ConnectionStrings.ConnectionStrings.Add( _ New ConnectionStringSettings("ConnStr1", strConn))ConfigurationManager.RefreshSection("ConnectionStrings")
• C. ConfigurationManager.ConnectionStrings.Add( _New ConnectionStringSettings("ConnStr1", strConn))ConfigurationManager.RefreshSection("ConnectionStrings")
• D. Dim myConfig As Configuration = _ ConfigurationManager.OpenExeConfiguration( _ ConfigurationUserLevel.None)myConfig.ConnectionStrings.ConnectionStrings.Add( _ New ConnectionStringSettings("ConnStr1", strConn))myConfig.Save()

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. In order to verify the data, you have to use the MD5 algorithm to harsh data. The data is passed to your method as a byte array named message. You have to use MD5 to compute the hash of the incoming parameter. Besides this, the result has to be placed into a byte array. In the options below, which code segment should you use?

• A. Dim objAlgo As HashAlgorithmobjAlgo = HashAlgorithm.Create(message.ToString)Dim hash() As Byte = objAlgo.Hash
• B. Dim objAlgo As HashAlgorithm = HashAlgorithm.Create("MD5")Dim hash() As Byte = BitConverter.GetBytes(objAlgo.GetHashCode)
• C. Dim objAlgo As HashAlgorithm = HashAlgorithm.Create("MD5")Dim hash() As ByteobjAlgo.TransformBlock(message, 0, message.Length, hash, 0)
• D. Dim objAlgo As HashAlgorithm = HashAlgorithm.Create("MD5")Dim hash() As Byte = objAlgo.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. Modify the application settings by using the resource editor.
• C. You should use the Visual Studio property page editor for the project to modify the application settings.
• D. You should use the Visual Studio start options editor to modify the application settings.