70-552CSharp Exam

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Exam : Microsoft 70-552(CSHARP)
Title : UPGRADE:MCAD Skills to MCPD Wdws Dvlpr by Using MS.NET Fmwk


1. 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))
throw new Exception("could not authenticate user");
String[] userRolesArray = LookupUserRoles(userName);
You need to complete this code so that it establishes the user security context. Which code segment should you use?
A. GenericIdentity ident = new GenericIdentity(userName);GenericPrincipal currentUser = new GenericPrincipal(ident, userRolesArray);Thread.CurrentPrincipal = currentUser;
B. WindowsIdentity ident = new WindowsIdentity(userName);WindowsPrincipal currentUser = new WindowsPrincipal(ident);Thread.CurrentPrincipal = currentUser;
C. NTAccount userNTName = new NTAccount(userName);GenericIdentity ident = new GenericIdentity(userNTName.Value);GenericPrincipal currentUser= new GenericPrincipal(ident, userRolesArray);Thread.CurrentPrincipal = currentUser;
D. IntPtr token = IntPtr.Zero;token = LogonUserUsingInterop(userName, encryptedPassword);WindowsImpersonationContext ctx = WindowsIdentity.Impersonate(token);
Answer: A

2. You are developing an auditing application to display the trusted ClickOnce applications that are installed on a computer. You need the auditing application to display the origin of each trusted application. Which code segment should you use?
A. ApplicationTrustCollection trusts;trusts = ApplicationSecurityManager.UserApplicationTrusts; foreach (ApplicationTrust trust in trusts) { Console.WriteLine(trust.ToString());}
B. ApplicationTrustCollection trusts;trusts = ApplicationSecurityManager.UserApplicationTrusts; foreach (ApplicationTrust trust in trusts) { Console.WriteLine(trust.ExtraInfo.ToString());}
C. ApplicationTrustCollection trusts;trusts = ApplicationSecurityManager.UserApplicationTrusts; foreach (ApplicationTrust trust in trusts) { Console.WriteLine(trust.ApplicationIdentity.FullName);}
D. ApplicationTrustCollection trusts;trusts = ApplicationSecurityManager.UserApplicationTrusts; foreach (object trust in trusts) { Console.WriteLine(trust.ToString());}
Answer: C

3. You are creating an assembly named Assembly1. Assembly1 contains a public method. The global cache contains a second assembly named Assembly2. You must ensure that the public method is only called from Assembly2. Which permission class should you use?
A. GacIdentityPermission
B. PublisherIdentityPermission
C. DataProtectionPermission
D. StrongNameIdentityPermission
Answer: D

4. You are developing an application that will deploy by using ClickOnce. You need to test if the application executes properly. You need to write a method that returns the object, which prompts the user to install a ClickOnce application. Which code segment should you use?
A. return ApplicationSecurityManager.ApplicationTrustManager;
B. return AppDomain.CurrentDomain.ApplicationTrust;
C. return new HostSecurityManager();
D. return SecurityManager.PolicyHierarchy();
Answer: A

5. You are developing a method to call a COM component. You need to use declarative security to explicitly request the runtime to perform a full stack walk. You must ensure that all callers have the required level of trust for COM interop before the callers execute your method. Which attribute should you place on the method?
A. [SecurityPermission( SecurityAction.Demand, Flags=SecurityPermissionFlag.UnmanagedCode)]
B. [SecurityPermission( SecurityAction.LinkDemand, Flags=SecurityPermissionFlag.UnmanagedCode)]
C. [SecurityPermission( SecurityAction.Assert, Flags = SecurityPermissionFlag.UnmanagedCode)]
D. [SecurityPermission( SecurityAction.Deny, Flags = SecurityPermissionFlag.UnmanagedCode)]
Answer: A