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2017 Mar 70-486 sample question

Q61. - (Topic 4) 

You are designing an enterprise-level Windows Communication Foundation (WCF) application. User accounts will migrate from the existing system. The new system must be able to scale to accommodate the increasing load. 

You need to ensure that the application can handle large-scale role changes. 

What should you use for authorization? (Each correct answer presents a complete solution. Choose all that apply.) 

A. Resource-based trusted subsystem model 

B. Identity-based approach 

C. Role-based approach 

D. Resource-based impersonation/delegation model 

Answer: B,C 

Explanation: Advanced Maturity: Authorization as a Service In the advanced level of maturity for authorization, role storage and management is consolidated and authorization itself is a service available to any solution that is service-enabled. 

* The Trusted Subsystems Model 

Once authorization is available as an autonomous service, the need for impersonation is eliminated. Instead of assuming the identity of the user, the application uses its own credentials to access services and resources, but it captures the user's identity and passes it as a parameter (or token) to be used for authorization when a request is made. This model is referred to as the trusted subsystem model, because the application acts as a trusted subsystem within the security domain. 


Q62. - (Topic 4) 

You are developing an ASP.NET MVC application that provides instant messaging capabilities to customers. 

You have the following requirements: 

Messages must be able to be sent and received simultaneously. 

Latency and unnecessary header data must be eliminated. 

The application must comply with HTML5 standards. 

You need to design the application to meet the requirements. 

What should you do? 

A. Configure polling from the browser. 

B. Implement long-running HTTP requests. 

C. Implement WebSockets protocol on the client and the server. 

D. Instantiate a MessageChannel object on the client. 

Answer:


Q63. - (Topic 3) 

You are creating a new authentication system that uses an HTTP header value. 

The existing authentication system must continue to operate normally. 

You need to implement the custom authentication. 

What should you do? (Each correct answer presents a complete solution. Choose all that 

apply.) 

A. Create a class derived from ActionResult and check for a valid HTTP header value in the ExecuteResult method. Change all actions to return this new class. 

B. Create an HttpHandler to check for a valid HTTP header value in the ProcessRequest method. 

C. Create an HttpModule and check for a valid HTTP header value in the AuthenticateRequest event. 

D. Create a class derived from AuthorizeAttribute and check for a valid HTTP header value in the AuthorizeCore method. Change usages of the existing AuthorizeAttribute to use the new class. 

Answer: C,D 


Q64. - (Topic 4) 

You are developing a controller for an ASP.NET MVC application that manages message board postings. 

The security protection built in to ASP.NET is preventing users from saving their HTML. 

You need to enable users to edit and save their HTML while maintaining existing security protection measures. 

Which code segment should you use? 

A. Option A 

B. Option B 

C. Option C 

D. Option D 

Answer:


Q65. - (Topic 4) 

You are developing an ASP.NET MVC application that uses forms authentication. The application uses SQL queries that display customer order data. 

You need to prevent all SQL injection attacks against the application. 

How should you secure the queries? 

A. Implement parameterization. 

B. Pattern check the input. 

C. Filter out prohibited words in the input. 

D. Escape single quotes on string-based input parameters. 

Answer:

Explanation: With most development platforms, parameterized statements that work with parameters can be used (sometimes called placeholders or bind variables) instead of embedding user input in the statement. A placeholder can only store a value of the given type and not an arbitrary SQL fragment. Hence the SQL injection would simply be treated as a strange (and probably invalid) parameter value. 

Reference: https://en.wikipedia.org/wiki/SQL_injection#Parameterized_statements 


Abreast of the times 70-486 torrent:

Q66. DRAG DROP - (Topic 4) 

You are developing an ASP.NET MVC application in a web farm. The application has a page that accepts a customer’s order, processes it, and then redirects the browser to a page where the order is displayed along with the shipping information. 

The order information should be available only to the page where the order is displayed. 

You need to store state and configure the application. 

What should you do? To answer, drag the appropriate item to the correct location. Each item may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content. 

Answer: 


Q67. DRAG DROP - (Topic 3) 

You need to ensure that the transcode.exe utility is installed before the worker role starts. 

How should you implement the startup task? (To answer, drag the appropriate values to the correct element or attribute. Each value may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.) 

Answer: 


Q68. - (Topic 3) 

You need to ensure that all the MVC controllers are secure. 

Which code segment should you use as the body for the CreateController method in AdminVerifierFactory.cs? 

A. Option A 

B. Option B 

C. Option C 

D. Option D 

Answer:


Q69. - (Topic 3) 

You need to maximize performance of video delivery. 

Which code segment should you use as the body of the GetVideoStream function in the Video-Controller class? 

A. Option A 

B. Option B 

C. Option C 

D. Option D 

Answer:


Q70. - (Topic 3) 

You need to ensure that all customers can delete videos regardless of their browser capability. 

Which code segment should you use as the body of the SendAsync method in the DeleteHandler class? 

A. Option A 

B. Option B 

C. Option C 

D. Option D 

Answer: