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 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 AppDomain.CurrentDomain.ApplicationTrust;
• B. return new HostSecurityManager();
• C. return SecurityManager.PolicyHierarchy();
• D. return ApplicationSecurityManager.ApplicationTrustManager;

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 auditing application to display the trusted ClickOnce applications. The applications are installed on a computer. Now you need the auditing application to display the origin of each trusted application. In the options below, which code segment should you use?

• A. Dim objTrusts As ApplicationTrustCollectionobjTrusts = ApplicationSecurityManager.UserApplicationTrustsFor Each objTrust As ApplicationTrust In objTrusts Console.WriteLine(objTrust.ApplicationIdentity.FullName.ToString)Next
• B. Dim objTrusts As ApplicationTrustCollectionobjTrusts = ApplicationSecurityManager.UserApplicationTrustsFor Each objTrust As ApplicationTrust In objTrusts Console.WriteLine(objTrust.ToString)Next
• C. Dim objTrusts As ApplicationTrustCollectionobjTrusts = ApplicationSecurityManager.UserApplicationTrustsFor Each objTrust As Object In objTrusts Console.WriteLine(objTrust.ToString)Next
• D. Dim objTrusts As ApplicationTrustCollectionobjTrusts = ApplicationSecurityManager.UserApplicationTrustsFor Each objTrust As ApplicationTrust In objTrusts Console.WriteLine(objTrust.ExtraInfo.ToString)Next

You have just graduated from college, now you are serving the internship as the software developer in an international company. A class library has been created. The class library contains the class hierarchy defined in the following code segment. (Line numbers are used for reference only.)
1 Public Class Group 2 Public Employees As Employee() 3 End Class 4 5 Public Class Employee 6 Public Name As String 7 End Class 8 9 Public Class Manager 10 Inherits Employee 11 Public Level As Integer 12 End Class You create an instance of the Group class.
You populate the fields of the instance. You receive error message and InvalidOperationException when you try to use the Serialize method of the XmlSerializer class to serialize the instance the Group class. The error message is: "There was an error generating the XML document."
In order to serialize instances successfully, you have to modify the code segment. Besides this, you must make sure that the XML output contains an element for all public fields in the class hierarchy.
So what should you do?

• A. Between lines 5 and 6 of the code segment, insert the code below: <XmlElement(Type:=GetType(Employee))> andInsert the following code between lines 10 and 11 of the code segment: <XmlElement(Type:=GetType(Manager))>
• B. Between lines 1 and 2 of the code segment insert the code below: <XmlArray(ElementName:="Employees")> _
• C. Between lines 1 and 2 of the code segment insert the code below: <XmlArrayItem(Type:=GetType(Employee))> _ <XmlArrayItem(Type:=GetType(Manager))> _
• D. Between lines 1 and 2 of the code segment, insert the code below: <XmlElement(Type:=GetType(Employee))> _

DRAG DROP
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 are creating an application which contains a form and provides information about the local computer. The form lists each logical drive along with the drive properties, such as type, volume label, and capacity.
Now properties of each logical drive on the local computer have to be retrieved. You have to write a procedure that retrieves properties. What should you do?
To answer, from the list of actions, move the three appropriate actions to the answer area and arrange them in the correct order.

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. ConfigurationManager.ConnectionStrings.Add( new ConnectionStringSettings("ConnStr1", strConn));Configuration myConfig = ConfigurationManager.OpenExeConfiguration( ConfigurationUserLevel.None);myConfig.Save();
• B. Configuration myConfig = 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. Configuration myConfig = ConfigurationManager.OpenExeConfiguration( ConfigurationUserLevel.None);myConfig.ConnectionStrings.ConnectionStrings.Add( new ConnectionStringSettings("ConnStr1", strConn));myConfig.Save();