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2021 Mar 70-486 study guide
Q21. - (Topic 4)
You are developing an application that uses many small images for various aspects of the interface.
The application responds slowly when additional resources are being accessed.
You need to improve the performance of the application.
What should you do?
A. Preload all the images when the client connects to ensure that the images are cached.
B. Combine all the images into a single image and use CSS to create sprites.
C. Host all images on an alternate server and provide a CDN.
D. Convert the images to .png file format and stream all images on a single connection.
Answer: C
Q22. - (Topic 2)
You need to configure session storage in the web.config file to meet the technical requirements for scalability.
Which SessionState mode should you use? (Each correct answer presents a complete solution. Choose all that apply.)
A. StateServer
B. InProc
C. AutoDetect
D. SqlServer
Answer: A,D
Q23. - (Topic 1)
You need to display the "miles" unit description after the distance in the GetLog view.
Which line of code should you use to replace line GL21? (Each correct answer presents a complete solution. Choose all that apply.)
A. @log.Distance miles
B. @Htrml.DisplayFor(model => log.Distance) miles
C. @log.Distance.ToString() @Html.TextArea("miles")
D. @Html.DisplayFor(model => log.Distance.ToString() + " miles")
Answer: A,B
Q24. - (Topic 4)
You are developing an ASP.NET MVC news aggregation application that will be deployed to servers on multiple networks.
The application must be compatible with multiple browsers. A user can search the website for news articles. You must track the page number that the user is viewing in search results.
You need to program the location for storing state information about the user's search.
What should you do?
A. Store search results and page index in Session.
B. Use Application state to store search terms and page index.
C. Use QueryString to store search terms and page index.
D. Store search results and page index in TempData
Answer: C
Q25. - (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
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Q26. - (Topic 4)
You are designing an MVC web application.
The view must be as simple as possible for designers who do not have a technical
background.
You need to combine two existing models to meet the requirement.
Which component of the MVC framework should you use?
A. View
B. View Model
C. Controller
D. Model
Answer: B
Q27. DRAG DROP - (Topic 4)
You are building an ASP.NET MVC web application.
The application will be viewed by users on their mobile phones.
You need to ensure that the page fits within the horizontal width of the device screens.
You have the following markup:
Which markup segments should you include in Target 1, Target 2 and Target 3 to complete the markup? (To answer, drag the appropriate markup segments to the correct targets. Each line of code 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:
Q28. - (Topic 4)
You are developing an ASP.NET MVC application that enables you to edit and save a
student object.
The application must not retrieve student objects on an HTTP POST request.
You need to implement the controller.
Which code segment should you use? (Each correct answer presents a complete solution.
Choose all that apply.)
A. Option A
B. Option B
C. Option C
D. Option D
Answer: C,D
Q29. HOTSPOT - (Topic 4)
You are developing an ASP.NET MVC application. The application includes the following code. Line numbers are included for reference only.
You add the following markup to the system.web section of the web.config file:
For each of the following statements, select Yes if the statement is true. Otherwise, select No.
Answer:
Q30. - (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.
The new servers are experiencing significant stress under load of large-scale role changes.
You need to ensure that the application can handle the stress.
Which authorizations should you redesign? (Each correct answer presents a complete solution. Choose all that apply.)
A. Role-based approach
B. Identity-based approach
C. Resource-based trusted subsystem model
D. Resource-based impersonation/delegation model
Answer: A,C