70-491 Free Dumps Study Materials
Question 7: You are developing a Windows Store app.
The app will access several web resources that use an OAuth 2.0 authentication provider.
You need to recommend in which class to store user credentials so that users do not have
to reenter their credentials when they access the web resources.
Which class should you recommend?
A. System.Net.AuthenticationManager
B. System.Net.NetworkCredential
C. Windows.Security.Credentials.WebAccount
D. Windows.Security.Credentials.PasswordVault
Correct Answer: D
Explanation:
The task of storing and retrieving user credentials securely and allowing user credentials roam at no
cost with the user's Microsoft account is simplified with the Credential Locker. Storing user
credentials in the Credential Locker is a quick, two-step process. 1.Obtain a reference to the
Credential Locker using the PasswordVault object from the Windows.Security.Credentials
namespace. 2.Create a PasswordCredential object that contains an identifier for your app, the
username and the password, and pass that to the PasswordVault.Add method to add the credential
to the locker.