Exam 70-486 topic 1 question 138 discussion

Actual exam question from Microsoft's 70-486

Question #: 138
Topic #: 1

You are developing an application that uses ASP.NET Core Identity for authorization. The application must use an existing Microsoft Azure Table Storage instance to store user information. You create a custom UserStore class.
You need to register the class as a dependency.
Which two interfaces should you implement? Each correct answer presents part of the solution.
NOTE: Each correct selection is worth one point.

A. IUserSecurityStampStore
B. IUserLoginStore
C. IQueryableUserStore
D. IUserStore
E. IUserPasswordStore

Show Suggested Answer

Suggested Answer: BD 🗳️
D: Create a UserStore class that provides the methods for all data operations on the user. This class is equivalent to the UserStore class. In your UserStore class, implement IUserStore<TUser> and the optional interfaces required. You select which optional interfaces to implement based on the functionality provided in your app.
Interfaces to implement when customizing user store
✑ IuserStore
The IUserStore<TUser> interface is the only interface you must implement in the user store. It defines methods for creating, updating, deleting, and retrieving users.
✑ IuserLoginStore
The IUserLoginStore<TUser, TKey> defines the methods you must implement in your user store to enable external authentication providers. It contains methods for adding, removing and retrieving user logins, and a method for retrieving a user based on the login information.
References:
https://docs.microsoft.com/en-us/aspnet/core/security/authentication/identity-custom-storageQQ-providers?view=aspnetcore-2.1

by mmk1991 at March 7, 2020, 2:13 a.m.

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zimzimzimma

4 years, 11 months ago

It says 'user information' without specifying what it is. That could be a lot of things besides password, like additional claims. B and D are correct.

upvoted 4 times

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mmk1991

5 years, 3 months ago

Why B is a correct answer, and not any other? All the mentioned interfaces seem to optional. Question does not mention anything about external providers

upvoted 2 times

fagdfgsg

5 years, 2 months ago

I agree, only B is the answer.

upvoted 1 times

mr_

4 years, 11 months ago

I disagree. As mmk1991 mentioned there is nothing in the requirements about external identity providers. I am not sure but personally I would go for IUserStore and IUserPasswordStore. Refs: https://stackoverflow.com/questions/30657958/store-does-not-implement-iuserpasswordstoretuser-asp-net-identity https://weblogs.asp.net/imranbaloch/a-simple-implementation-of-microsoft-aspnet-identity

upvoted 1 times

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