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 create a Web Form which is for members only. The behavior of the Web site varies according to the role of the user. The Web site creates user accounts by using the ASP.NET Membership control. You have to identify whether a user is a member of a particular role. What should you do?

• A. You should pass the user names and passwords to Membership.ValidateUser.
• B. You should pass the role names to User.IsInRole.
• C. You should pass the role names to Roles.RoleExists.
• D. You should pass the user names to Membership.GetUser.

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're developing a server. You are developing an application. Users who are not members of the Administrator group are not allowed to run the application. You protect sensitive data within the application by writing the security code below:
Dim blnAdmin As Boolean = False
Dim objRole As WindowsBuiltInRole = _
WindowsBuiltInRole.Administrator
If blnAdmin = False Then
Throw New Exception("User not permitted")
End If
Now if a user is not a member of the Administrator group, the application must throw an exception. You must add a code segment to this security code to ensure this.
In the options below, which code segment should you use?
objGroup.Value.Equals(objRole)Next

• A. Dim objUser As WindowsPrincipal = _DirectCast(Thread.CurrentPrincipal, WindowsPrincipal)blnAdmin = objUser.IsInRole(objRole)
• B. Dim objUser As WindowsIdentity = WindowsIdentity.GetCurrentFor Each objGroup As IdentityReference In objUser.GroupsDim objAccount As NTAccount = _ DirectCast(objGroup.Translate( _ Type.GetType("NTAccount")), NTAccount)blnAdmin =
• C. Dim objUSer As WindowsIdentity = _DirectCast(Thread.CurrentPrincipal.Identity, WindowsIdentity)blnAdmin = objUSer.Name.EndsWith("Administrator")
• D. Dim objUser As GenericPrincipal = _DirectCast(Thread.CurrentPrincipal, GenericPrincipal)blnAdmin = objUser.IsInRole(objRole.ToString)

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're developing a Web application. The Web application contains two distinct UIs, one is targeted to mobile devices which might or might not support cookies and relative URLs, another to desktop browsers. Users request the Default.aspx page. You have to redirect users to the appropriate UI, on the basis that whether they are using a mobile device or a desktop browser. What should you do?

• A. Add the following code segment to the Page_Load event of Default.aspx. if (Request.Browser["IsMobileDevice"] == "true" ) { Response.Redirect("MobileDefault.aspx");} else { Response.Redirect("DesktopDefault.aspx");}
• B. Add the following code segment to the Page_Load event of Default.aspx. if (Request.Browser.Type == "MobileDevice") { Response.Redirect("MobileDefault.aspx");} else { Response.Redirect("DesktopDefault.aspx");}
• C. Add the following node to the <system.web> element of the Web.config file. <httpRuntime useFullyQualifiedRedirectUrl="true" />
• D. Add the following node to the <system.web> element of the Web.config file. <httpRuntime useFullyQualifiedRedirectUrl="false" />

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 HashAlgorithm = HashAlgorithm.Create("MD5")Dim hash() As ByteobjAlgo.TransformBlock(message, 0, message.Length, hash, 0)
• B. Dim objAlgo As HashAlgorithmobjAlgo = HashAlgorithm.Create(message.ToString)Dim hash() As Byte = objAlgo.Hash
• C. Dim objAlgo As HashAlgorithm = HashAlgorithm.Create("MD5")Dim hash() As Byte = objAlgo.ComputeHash(message)
• D. Dim objAlgo As HashAlgorithm = HashAlgorithm.Create("MD5")Dim hash() As Byte = BitConverter.GetBytes(objAlgo.GetHashCode)

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 Form which allows users to log on to an application. On the Web Form, you include a Login control named LoginA. In one of LoginA's event handlers, you have to write code which must implement your custom logic that validates the user's credentials. In which event handler should you write the code?

• A. You should write the code in LoginA_LoginError
• B. You should write the code in LoginA_Authenticate
• C. You should write the code in LoginA_LoggingIn
• D. You should write the code in LoginA_LoggedIn