70-486 Exam
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New Microsoft 70-486 Exam Dumps Collection (Question 3 - Question 12)
Q3. You are authoring unit tests.
The unit tests must test code that consumes sealed classes.
You need to create, maintain, and inject dependencies in the unit tests.
Which isolation method should you use?
A. T4 text templates and code generation
B. Stub types
C. Shim types
D. Hard-coded implementation
Answer: C
Explanation:
Shim types are one of two technologies that the Microsoft Fakes Framework uses to let you easily isolate components under test from the environment. Shims divert calls to specific methods to code that you write as part of your test. Many methods return different results dependent on external conditions, but a shim is under the control of your test and can return consistent results at every call. This makes your tests much easier to write.
References: http://msdn.microsoft.com/en-us/library/hh549176.aspx
Q4. You are developing an ASP.NET MVC web application in Visual Studio 2012. The application requires several thousand content files. All content is hosted on the same IIS
instance as the application.
You detect performance issues when the application starts. You need to resolve the performance issues.
What should you do?
A. Implement HTTP caching in the ASP.NET MVC controllers.
B. Combine the content files by using ASP.NET MVC bundling.
C. Install a second IIS instance.
D. Move the content to a Windows Azure CDN.
Answer: B
Explanation:
Bundling is a new feature in ASP.NET 4.5 that makes it easy to combine or bundle multiple files into a single file. You can create CSS, JavaScript and other bundles. Fewer files means fewer HTTP requests and that can improve first page load performance.
References: https://www.asp.net/mvc/overview/performance/bundling-and-minification
Q5. You are developing an ASP.NET MVC application that will run in a shared environment. The application requests the user's password, and then uses the password to sign data.
You need to minimize the potential for the password to be discovered by other processes that run in the shared environment. What should you do?
A. Add the SecuritySafeCriticalAttribute attribute to the methods which process the password.
B. Store the password in a SecureString instance.
C. Encrypt the password on the web page, and decrypt the password in the MVC application.
D. Run the code that processes the password in its own AppDomain.
Answer: D
Explanation:
Application domains provide a unit of isolation for the common language runtime. They are created and run inside a process. Application domains are usually created by a runtime host, which is an application responsible for loading the runtime into a process and executing user code within an application domain. The runtime host creates a process and a default application domain, and runs managed code inside it. Runtime hosts include ASP.NET, Microsoft Internet Explorer, and the Windows shell.
For most applications, you do not need to create your own application domain; the runtime host creates any necessary application domains for you. However, you can create and configure additional application domains if your application needs to isolate code or to use and unload DLLs.
References: https://msdn.microsoft.com/en-us/library/yb506139(v=vs.110).aspx
Q6. You are designing a distributed application.
The application must store secure information that is specific to an individual user. The data must be automatically purged when the user logs off.
You need to save transient information in a secure data store. Which data store should you use?
A. Session state
B. Database storage
C. Profile properties
D. Application state
Answer: A
Explanation:
ASP.NET session state enables you to store and retrieve values for a user as the user navigates ASP.NET pages in a Web application. HTTP is a stateless protocol. This means that a Web server treats each HTTP request for a page as an independent request. The server retains no knowledge of variable values that were used during previous requests.
ASP.NET session state identifies requests from the same browser during a limited time window as a session, and provides a way to persist variable values for the duration of that session.
References: https://msdn.microsoft.com/en-us/library/ms178581.aspx
Q7. You are developing an ASP.NET MVC application that will run on Azure.
The application uses Event Tracing for Windows (ETW) for logging operations.
You need to retrieve the ETW data for the application from a deployed Azure instance by using the Azure Diagnostics API.
Which data source should you use?
A. Azure Diagnostic infrastructure logs
B. Windows event logs
C. performance counters
D. .NET EventSource
Answer: D
Explanation:
Azure Diagnostics 1.2 and 1.3 are Azure extensions that enable you to collect diagnostic telemetry data from a worker role, web role, or virtual machine running in Azure. Diagnostics 1.2 and 1.3 enable the collection of ETW and .NET EventSource events.
Example: EtwProviders>
<EtwEventSourceProviderConfiguration provider="SampleEventSourceWriter" scheduledTransferPeriod="PT5M">
<Event id="1" eventDestination="EnumsTable"/>
<Event id="2" eventDestination="MessageTable"/>
<Event id="3" eventDestination="SetOtherTable"/>
<Event id="4" eventDestination="HighFreqTable"/>
<DefaultEvents eventDestination="DefaultTable" />
</EtwEventSourceProviderConfiguration>
</EtwProviders> References:
Q8. You need to implement the business requirements for managing customer data.
What should you do? (Each correct answer presents part of the solution. Choose all that apply.)
A. Add a class named Customer-Controller to the Controllers folder. Then add a method named Edit to the class.
B. Create a new controller named Administration in the Controllers folder. Add an action named EditCustomer to the controller.
C. Add a folder named Customer to the Views folder. Then create a view inside this folder named Edit.aspx.
D. Create a new folder named EditCustomer to the Views folder. In the new folder, create a new file named Administration.aspx.
Answer: A,B
Q9. You develop an ASP.NET MVC application. The application has several Razor views. The application must support desktop and mobile devices by using server side code. You need to choose an approach to support mobile devices.
Which two approaches can you use?
A. use different controllers and views for both desktop and mobile browsers but render the views with the same Razor layout depending on the device type.
B. Use the same controllers for both desktop and mobile browsers, but render different views depending on the device type.
C. Use different controllers and views for both desktop and mobile browsers, but render the views using the Bootstart framework.
D. Create separate areas for desktop and mobile browsers implementing independent controllers and views for each.
Answer: B,D
Q10. You are developing an ASP.NET MVC application by using Visual Studio 2012.
The application throws and handles exceptions when it runs.
You need to examine the state of the application when exceptions are thrown. What should you do?
A. From the Debug menu in Visual Studio 2012, select Exceptions. Enable the Thrown check box for Common Language Runtime Exceptions.
B. From the DEBUG menu in Visual Studio 2012, select Attach to Process. Select the IIS process.
C. From the Debug menu in Visual Studio 2012, select Exceptions. Disable the User- unhandled check box for Common Language Runtime Exceptions.
D. From the TOOLS menu in Visual Studio 2012, click Customize. Click the Command tab and select Debug.
Answer: A
Explanation:
Configuring the debugger to break for first chance exceptions
To change when the debugger breaks, go to Debug->Exceptionsu2026
When you first open this window you will see that there is a tree grid with one column and checkboxes.
* Break when Thrown. This includes a default list of exceptions known by the debugger, grouped by category.
Note: The possible exceptions that could break from this list is determined by the runtime you are debugging. For example, if you are using managed-only debugging then the debugger will never break for C++, Win32 Exceptions, etc. even if they are configured to break when thrown.
* Checkboxes. If you check the box for a category, then the debugger will break for all First Chance Exceptions while debugging. If you donu2021t want to enable all First Chance Exceptions, you can find the specific exception types that you wish to configure by using the search box.
Q11. You are designing a distributed application that runs on the Windows Azure platform.
The application must store a small amount of insecure global information that does not change frequently.
You need to configure the application to meet the requirements.
Which server-side state management option should you use? (Each correct answer presents a complete solution. Choose all that apply.)
A. Windows Azure application state
B. SQL Azure
C. Profile properties of the Windows Azure application
D. Windows Azure session state
Answer: B
Explanation:
SQL Database provides a relational database management system for Windows Azure and is based on SQL Server technology. With a SQL Database instance, you can easily provision and deploy relational database solutions to the cloud, and take advantage of a distributed data center that provides enterprise-class availability, scalability, and security with the benefits of built-in data protection and self-healing.
Incorrect:
Not A: Application State does not exist in Azure.
Not C: Profile properties stores personal, not global, information.
Not D: Session state is not global. Session states handles user information such as cookies, hidden fields, and query strings are some client-side options to tracking user state
Q12. The GetDealPrice method must be called by using Ajax.
You need to get the price of a product by using the GetDealPrice method of the ProductController.
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
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