Basic, Microsoft .NET Framework

Question: You write the following class that has three methods.
Public Class SimpleEmployee
Private m_EmployeeId As String
Private m_EmployeeName As String
Private m_JobTitleName As String
Public Function GetID() As String Return m_EmployeeID
End Function
Public Function GetName() As String Return m_EmployeeName
End Function
Public Function GetTitle() As String Return m_JobTitleName
End Function
End Class
You need to expose the class to COM in a type library. The COM
interface must not expose the method GetEmployeeId. The GetEmployeeId
method must still be available to managed code. You need to hide the
GetEmployeeID method from the COM interface. What should you do?
A
Apply the ComVisible attribute to the class and methods in the following manner.
<ComVisible(False)> _
Public Class SimpleEmployee
Private m_EmployeeId As String
Private m_EmployeeName As String
Private m_JobTitleName As String
Public Function GetID() As String
Return m_EmployeeId
End Function
<ComVisible(True)> _
Public Function GetName() As String
Return m_EmployeeName
End Function
<ComVisible(True)> _
Public Function GetTitle() As String
Return m_JobTitleName
End Function End Class

B
Apply the ComVisible attribute to the class and methods in the following manner.
[ <ComVisible(True)> _ Public Class SimpleEmployee
Private m_EmployeeId As String
Private m_EmployeeName As String
Private m_JobTitleName As String
Public Function GetID() As String
"A Composite Solution With Just One Click" - Certification Guaranteed 147 Microsoft 70-536 Exam Return m_EmployeeId
End Function <ComVisible(True)> _
Public Function GetName() As String
Return m_EmployeeName
End Function
<ComVisible(True)> _
Public Function GetTitle() As String
Return m_JobTitleName
End Function End Class

C
Apply the ComVisible attribute to the GetEmployeeId method in the following manner.
Public Class SimpleEmployee
Private m_EmployeeId As String
Private m_EmployeeName As String
Private m_JobTitleName As String
<ComVisible(False)> _
Public Function
GetID() As String
Return m_EmployeeID
End Function Public Function GetName() As String
Return m_EmployeeName
End Function
Public Function GetTitle() As String
Return m_JobTitleName
End Function End Class

D
Change the access modifier for the GetEmployeeId method in the following manner.
Public Class SimpleEmployee
Private m_EmployeeId As String
Private m_EmployeeName As String
Private m_JobTitleName As String
Protected Function GetID() As String
Return m_EmployeeID
End Function
Public Function GetName() As String
Return m_EmployeeName
End Function Public Function GetTitle() As String
Return m_JobTitleName
End Function End Class

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Question: You write the following custom exception class named CustomException.
Public Class CustomException
Inherits ApplicationException
Public Shared COR_E_ARGUMENT As Int32 = &H80070057
Public Sub New(ByVal strMessage As String)
MyBase.New(strMessage)
HResult = COR_E_ARGUMENT
End Sub
End Class
You need to write a code segment that will use the CustomException class to immediately return control to the COM caller. You also need to ensure that the caller has access to the error code.
Which code segment should you use?
A
Return CustomException.COR_E_ARGUMENT

B
Return Marshal.GetExceptionForHR( _ CustomException.COR_E_ARGUMENT)

C
Throw New CustomException("Argument is out of bounds")

D
Marshal.ThrowExceptionForHR( _ CustomException.COR_E_ARGUMENT)

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Question: You write the following code to implement the MyClass.MyMethod function.
Public Class NewClass
Public Function MyMethod(ByVal Arg As Integer) As Integer
Return Arg
End Function
End Class
You need to call the MyClass.MyMethod function dynamically from an unrelated class in your assembly.
Which code segment should you use?
A
Dim objNewClass As New NewClass
Dim objType As Type = objNewClass.GetType
Dim objInfo As MethodInfo = _
objType.GetMethod("MyMethod")
Dim objParams() As Object = {1}
Dim i As Integer = _
DirectCast(objInfo.Invoke(Me, objParams), Integer)

B
Dim objNewClass As New NewClass
Dim objType As Type = objNewClass.GetType
Dim objInfo As MethodInfo = objType.GetMethod("MyMethod")
Dim objParams() As Object = {1}
Dim i As Integer = _
DirectCast(objInfo.Invoke(objNewClass, objParams), Integer)

C
Dim objNewClass As New NewClass
Dim objType As Type = objNewClass.GetType
Dim objInfo As MethodInfo = _
objType.GetMethod("NewClass.MyMethod")
Dim objParams() As Object = {1}
Dim i As Integer = _
DirectCast(objInfo.Invoke(objNewClass, objParams), Integer)

D
Dim objType As Type = Type.GetType("NewClass")
Dim objInfo As MethodInfo = objType.GetMethod("MyMethod")
Dim objParams() As Object = {1} Dim i As Integer = _
DirectCast(objInfo.Invoke(Me, objParams), Integer)

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Question: You write the following code to call a function from the Win32 Application Programming Interface (API) by using platform invoke.
Dim r As Integer = MessageBox(hWnd, strText, strCaption, strType)
You need to define a method prototype.
Which code segment should you use?
A
<DllImport("user32")>_
Function MessageBox( _
ByVal hWnd As IntPtr, ByVal text As String, _
ByVal Caption As String, ByVal t As UInt32) As Integer End Function

B
<DllImport("C:\WINDOWS\system32\user32.dll ")>_
Function MessageBox( _
ByVal hWnd As IntPtr, ByVal text As String, _
ByVal Caption As String, ByVal t As UInt32) As Integer End Function

C
<DllImport("user32")>_
Function Win32API_User32_MessageBox ( _
ByVal hWnd As IntPtr, ByVal text As String, _
ByVal Caption As String, ByVal t As UInt32) As Integer End Function

D
<DllImport("user32")>_
Function MessageBoxA( _
ByVal hWnd As IntPtr, ByVal text As String, _
ByVal Caption As String, ByVal t As UInt32) As Integer End Function

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Question: You need to create a dynamic assembly named MyAssembly. You also need to save the assembly to disk.Which code segment should you use?
A
Dim objAssembly As New AssemblyName() objAssembly.Name = "MyAssembly" Dim objBuilder As AssemblyBuilder = _ AppDomain.CurrentDomain.DefineDynamicAssembly( _ objAssembly, AssemblyBuilderAccess.Save) objBuilder.Save("MyAssembly.dll")

B
Dim objAssembly As New AssemblyName() objAssembly.Name = "MyAssembly" Dim objBuilder As AssemblyBuilder = _ AppDomain.CurrentDomain.DefineDynamicAssembly( _ objAssembly, AssemblyBuilderAccess.Save) objBuilder.Save("c:\MyAssembly.dll")

C
Dim objAssembly As New AssemblyName() objAssembly.Name = "MyAssembly" Dim objBuilder As AssemblyBuilder = _ AppDomain.CurrentDomain.DefineDynamicAssembly( _ objAssembly, AssemblyBuilderAccess.Run) objBuilder.Save("MyAssembly.dll")

D
Dim objAssembly As New AssemblyName() objAssembly.Name = "MyAssembly" Dim objBuilder As AssemblyBuilder = _ AppDomain.CurrentDomain.DefineDynamicAssembly( _ objAssembly, AssemblyBuilderAccess.RunAndSave) objBuilder.Save("MyAssembly.dll")

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Question: You are writing code for user authentication and authorization. The username, password, and roles are stored in your application data store.
You need to establish a user security context that will be used for authorization checks such as IsInRole. You write the following code segment to authorize the user.
If TestPassword(UserName, Password) = False Then
Throw New Exception("Could not authenticate user")
End If
Dim RolesArray() As String = LookUpUserRoles(UserName)
You need to complete this code so that it establishes the user security context.
Which code segment should you use?

A
Dim objID As New WindowsIdentity(UserName)
Dim objUser As New WindowsPrincipal(objID)
Thread.CurrentPrincipal = objUser

B
Dim objID As New GenericIdentity(UserName)
Dim objUser As New GenericPrincipal(objID, RolesArray) Thread.CurrentPrincipal = objUser

C
Dim objToken As IntPtr = IntPtr.Zero
objToken = LogonUserUsingInterop(UserName, EncryptedPassword) Dim objContext As WindowsImpersonationContext = _
WindowsIdentity.Impersonate(objToken)

D
Dim objNT As New NTAccount(UserName)
Dim objID As New GenericIdentity(objNT.Value)
Dim objUser As New GenericPrincipal(objID, RolesArray) Thread.CurrentPrincipal = objUser

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Question: You create a DirectorySecurity object for the working directory. You
need to identify the user accounts and groups that have read and write
permissions. Which method should you use on the DirectorySecurity
object?
A
the GetAuditRules method

B
the GetAccessRules method

C
the AccessRuleFactory method

D
the AuditRuleFactory method

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Question: You are developing a class library that will open the network socket
connections to computers on the network. You will deploy the class
library to the global assembly cache and grant it full trust. You write
the following code to ensure usage of the socket connections.
Dim objPermission As SocketPermission = New _
SocketPermission(System.Security.Permissions.PermissionState.Unrestrict
ed) objPermission.Assert()
Some of the applications that use the
class library might not have the necessary permissions to open the
network socket connections. You need to cancel the assertion. Which
code segment should you use?
A
CodeAccessPermission.RevertAssert()

B
CodeAccessPermission.RevertDeny()

C
objPermission.Deny()

D
objPermission.PermitOnly()

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Question: You create a method that runs by using the credentials of the end user. You need to use Microsoft Windows groups to authorize the user. You must add a code segment that identifies whether a user is in the local group named Clerk. Which code segment should you use?
A
Dim objUser As WindowsPrincipal = _
DirectCast(Thread.CurrentPrincipal, WindowsPrincipal) Dim blnAuth As Boolean = _ objUser.IsInRole(Environment.MachineName)

B
Dim objUser As WindowsPrincipal = _
DirectCast(Thread.CurrentPrincipal, WindowsPrincipal) Dim blnAuth As Boolean = objUser.IsInRole ("Clerk")

C
Dim objUser As GenericPrincipal = _
DirectCast(Thread.CurrentPrincipal, GenericPrincipal) Dim blnAuth As Boolean = objUser.IsInRole
("Clerk")

D
Dim objUser As WindowsIdentity = WindowsIdentity.GetCurrent For Each objGroup As
IdentityReference In objUser.Groups "A Composite Solution With Just One Click" - Certification
Guaranteed 154 Microsoft 70-536 Exam
Dim objNT As NTAccount = _
DirectCast(objGroup.Translate( _
Type.GetType("NTAccount")), NTAccount)
Dim blnAuth As Boolean = objNT.Value.Equals( _
Environment.MachineName & "\Clerk")
If blnAuth Then Exit ForNext

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Question: You are developing an application that will use custom authentication and role-based security. You need to write a code segment to make the runtime assign an unauthenticated principal object to each running thread. Which code segment should you use?
A
Dim objDomain As AppDomain = AppDomain.CurrentDomain objDomain.SetAppDomainPolicy( _ PolicyLevel.CreateAppDomainLevel())

B
Dim objDomain As AppDomain = AppDomain.CurrentDomain objDomain.SetPrincipalPolicy( _ PrincipalPolicy.WindowsPrincipal)

C
Dim objDomain As AppDomain = AppDomain.CurrentDomain objDomain.SetPrincipalPolicy( _ PrincipalPolicy.UnauthenticatedPrincipal)

D
Dim objDomain As AppDomain = AppDomain.CurrentDomain objDomain.SetThreadPrincipal(New WindowsPrincipal(Nothing))

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Question: You write the following code to call a function from the Win32 Application Programming Interface (API) by using platform invoke.
Dim r As Integer = MessageBox(hWnd, strText, strCaption, strType)
You need to define a method prototype.
Which code segment should you use?

Question: You need to create a dynamic assembly named MyAssembly. You also need to save the assembly to disk.Which code segment should you use?

Question: You create a DirectorySecurity object for the working directory. You
need to identify the user accounts and groups that have read and write
permissions. Which method should you use on the DirectorySecurity
object?

Question: You create a method that runs by using the credentials of the end user. You need to use Microsoft Windows groups to authorize the user. You must add a code segment that identifies whether a user is in the local group named Clerk. Which code segment should you use?

Question: You are developing an application that will use custom authentication and role-based security. You need to write a code segment to make the runtime assign an unauthenticated principal object to each running thread. Which code segment should you use?

Question: You write the following code to call a function from the Win32 Application Programming Interface (API) by using platform invoke.Dim r As Integer = MessageBox(hWnd, strText, strCaption, strType)You need to define a method prototype.Which code segment should you use?

Question: You need to create a dynamic assembly named MyAssembly. You also need to save the assembly to disk.Which code segment should you use?

Question: You create a DirectorySecurity object for the working directory. Youneed to identify the user accounts and groups that have read and writepermissions. Which method should you use on the DirectorySecurityobject?

Question: You create a method that runs by using the credentials of the end user. You need to use Microsoft Windows groups to authorize the user. You must add a code segment that identifies whether a user is in the local group named Clerk. Which code segment should you use?

Question: You are developing an application that will use custom authentication and role-based security. You need to write a code segment to make the runtime assign an unauthenticated principal object to each running thread. Which code segment should you use?

Question: You write the following code to call a function from the Win32 Application Programming Interface (API) by using platform invoke.
Dim r As Integer = MessageBox(hWnd, strText, strCaption, strType)
You need to define a method prototype.
Which code segment should you use?

Question: You create a DirectorySecurity object for the working directory. You
need to identify the user accounts and groups that have read and write
permissions. Which method should you use on the DirectorySecurity
object?