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 serve the customer. For a new client application, you are creating a utility screen which displays a thermometer. The thermometer conveys the current status of processes being carried out by the application.
On the screen, you have to draw a rectangle to serve as the background of the thermometer as shown in the exhibit. The rectangle must be full of gradient shading. (Click the Exhibit button.)
In the options below, which code segment should you choose?

• A. Rectangle rectangle = new Rectangle(10, 10, 450, 25); LinearGradientBrush rectangleBrush = new LinearGradientBrush(rectangle, Color.AliceBlue, Color.CornflowerBlue, LinearGradientMode.ForwardDiagonal); Pen rectanglePen = new Pen(rectangleBrush); Graphics g = this.CreateGraphics(); g.FillRectangle(rectangleBrush, rectangle);
• B. RectangleF rectangle = new RectangleF(10f, 10f, 450f, 25f); SolidBrush rectangleBrush = new SolidBrush(Color.AliceBlue); Pen rectanglePen = new Pen(rectangleBrush); Graphics g = this.CreateGraphics(); g.DrawRectangle(rectangleBrush, rectangle);
• C. Rectangle rectangle = new Rectangle(10, 10, 450, 25); LinearGradientBrush rectangleBrush = new LinearGradientBrush(rectangle, Color.AliceBlue, Color.CornflowerBlue, LinearGradientMode.ForwardDiagonal); Pen rectanglePen = new Pen(rectangleBrush); Graphics g = this.CreateGraphics(); g.DrawRectangle(rectanglePen, rectangle);
• D. RectangleF rectangle = new RectangleF(10f, 10f, 450f, 25f); Point[] points = new Point[] {new Point(0, 0), new Point(110, 145)}; LinearGradientBrush rectangleBrush =
  new LinearGradientBrush(rectangle, Color.AliceBlue, Color.CornflowerBlue, LinearGradientMode.ForwardDiagonal); Pen rectanglePen = new Pen(rectangleBrush); Graphics g = this.CreateGraphics(); g.DrawPolygon(rectanglePen, points);

You work as the developer in an IT company. Recently your company has a big client. The
client runs a large supermarket chain. According to the requirement of the client, you have to write a code segment. The code segment will add a string named strConn to the connection string section of the application configuration file. In the options below, which code segment should you use?

• A. Configuration myConfig = ConfigurationManager.OpenExeConfiguration( ConfigurationUserLevel.None);myConfig.ConnectionStrings.ConnectionStrings.Add( new ConnectionStringSettings("ConnStr1", strConn));ConfigurationManager.RefreshSection( "ConnectionStrings");
• B. Configuration myConfig = ConfigurationManager.OpenExeConfiguration( ConfigurationUserLevel.None);myConfig.ConnectionStrings.ConnectionStrings.Add( new ConnectionStringSettings("ConnStr1", strConn));myConfig.Save();
• C. ConfigurationManager.ConnectionStrings.Add( new ConnectionStringSettings("ConnStr1", strConn));ConfigurationManager.RefreshSection( "ConnectionStrings");
• D. ConfigurationManager.ConnectionStrings.Add( new ConnectionStringSettings("ConnStr1", strConn));Configuration myConfig = ConfigurationManager.OpenExeConfiguration( ConfigurationUserLevel.None);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 an application. The application will deploy by using ClickOnce. After the application is created, the customer wants to see whether the application runs properly. So you have to test it. You have to write a method that returns the object, which prompts the user to install a ClickOnce application. In the options below, which code segment should you use?

• A. Return SecurityManager.PolicyHierarchy
• B. Return AppDomain.CurrentDomain.ApplicationTrust
• C. Return ApplicationSecurityManager.ApplicationTrustManager
• D. Return new HostSecurityManager

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. You create a Web site. Then you create a master page which serves as the template for articles on your Web site. The master page is named Article.master and uses the following page directives.
<%@ Master Language="C#" Src="~/article.master.cs" Inherits="article" %>
A content page which uses the master page as a template has to be created. Besides this, you have to use a single master page for all devices that access the Web site. In the options below, which code segment should you use?

• A. <%@ Page Language="C#" MasterPageFile="~/article.master"%>
• B. <%@ Page Language="C#" ie:MasterPageFile="~/article.master"%>
• C. <%@Page Language="C#" all:MasterPageFile="~/article.master"%>
• D. <%@ Page Language="C#" Theme="article"%>