70-355 Exam
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Q11. You need to provide license metadata to the current app.
Which class should you use?
A. ListingInformation
B. LicenseInformation
C. ProductListing
D. ProductLicense
Correct
Answer: C
Explanation:
TheLicenseInformationproperty (not a class) of theCurrentApp classgets the license metadata for the current app.
Q12. You develop a Universal Windows Platform (UWP) app that is available in the Microsoft Store.
Some users report that the app occasionally crashes.
You review the health reports from the Windows Dev Center dashboard and you discover that there are no Failure logs for the app. You need to ensure that the app failure information is available in the health reports from the Windows Dev Center dashboard. What should you do before you republish the app?
A. Create a custom logging event in the app.
B. Create a Windows Push Notification Services (WNS) service, and then add the cloud service URI to the client application.
C. Create a new app package that includes the .pdb symbol files.
D. Enable the code generation capability, and then create a new app package.
Correct
Answer: C
Explanation:
If you have included PDB symbol files, the Failure log chart will show details related to occurrences of specific symbols, including the total number of crashes and the average daily number of crashes per symbol.
Q13. You are developing a Universal Windows Platform (UWP) app.
You need to implement remote debugging of the app on a tablet device. What should you run on the tablet?
A. windbg.exe
B. msvsmon.exe
C. al.exe
D. msbuild.exe
Correct
Answer: A
Explanation:
Remote Debugging Using WinDbg
Q14. You are developing a Universal Windows Platform (UWP) app that will display a list of contacts.
When the app loads, it will display the alphabet and provide users with the ability to zoom in on a letter to display all of the contacts whose name starts with that letter. The app will use a SemanticZoom control.
You need to identify which event you must use in the app. Which event should you identify?
A. ViewChangeStarted
B. Loaded
C. Tapped
D. ManipulationStarted
Correct
Answer: A
Explanation:
TheSemanticZoom.ViewChangeStarted eventoccurs when a view change is requested.
Incorrect:
Not B: Loaded occurs when a FrameworkElement has been constructed and added to the object tree, and is ready for interaction. Not C: Tapped occurs when an otherwise unhandled Tap interaction occurs over the hit test area of this element.
Not D: ManipulationStarted represents that the manipulation recognition logic has detected pointer movement.
Q15. You are creating a Universal Windows Platform (UWP) app by using Microsoft Visual Studio 2015.
You discover that the app uses more memory than expected. You suspect that a method named Method1 is consuming most of the memory. You need to identify the changes in memory that are a direct result of executing Method1.
What should you do?
A. From Visual Studio, set a breakpoint on the method and immediately after the method.Fromthe Diagnostic Tools, clickTake Snapshotwhen each breakpoint is hit.
B. From the Debug tab in Visual Studio, clickStart Diagnostic Tools Without Debugging,selectApplication Timeline,and then clickStart.
C. From the Windows Performance Analyzer, record the memory consumption.
D. From Windows Performance Monitor, create a Data Collector Set (DCS). Start the DCS, run the app, and then stop the DCS.
Correct
Answer: A
Explanation:
Find memory leaks and inefficient memory while you’re debugging with the debugger-integrated Memory Usage diagnostic tool. The Memory Usage tool lets you take one or more snapshots of the managed and native memory heap.
Although you can collect memory snapshots at any time in the Memory Usage tool, you can use the Visual Studio debugger to control how your application executes while investigating performance issues. Setting breakpoints, stepping, Break All, and other debugger actions can help you focus your performance investigations on the code paths that are most relevant.
References:
https://msdn.microsoft.com/en-us/library/mt125494.aspx
Q16. Your company has a private GitHub repository.
A new developer needs to make a change to a project in the repository. What should the developer do first?
A. Create a new local branch of the repository.
B. Create a new remote branch of the repository.
C. Commit the remote repository.
D. Clone the repository locally.
Answer: D
Explanation:
With distributed version control systems like Git, if you want to make a change to a project you copy the whole repository to your own system. You make your changes on your local copy, then you “check in” the changes to the central server.
References:
http://techcrunch.com/2012/07/14/what-exactly-is-github-anyway/
Q17. DRAG DROP
You are developing a Universal Windows Platform (UWP) app. In MainPage.xaml, you have the following markup.
You need to create an event handler for the app. How should you complete the code? To answer, drag the appropriate code elements to the correct targets. Each element 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.
Select and Place:
Answer:
Explanation:
Example: Peer-to-peer navigation between two pages
private void HyperlinkButton_Click(object sender, RoutedEventArgs e)
{
this.Frame.Navigate(typeof(Page2), name.Text);
}
References:
https://msdn.microsoft.com/en-us/library/windows/apps/mt465735.aspx
Q18. You are developing a Universal Windows Platform (UWP) app. The application architecture uses the Model-View-ViewModel (MVVM) pattern.
You are designing a form to add new contacts to the app. The form contains an input field named LastName and a Save button. You need to ensure that when LastName is empty, the Save button is disabled.
What should you use?
A. On the Save button, change the IsDefaulted property and the IsDefault property.
B. Use an InputType enumeration that has a Command member.
C. Use a CommandBinding object that contains a CanExecute event.
D. On the Save button, change the IsSealed value.
Correct
Answer: C
Explanation:
The CommandBinding.CanExecute event occurs when the command associated with this CommandBinding initiates a check to determine whether the command can be executed on the command target.
References:
https://msdn.microsoft.com/en-us/library/system.windows.input.commandbinding.canexecute(v=vs.110).aspx
Q19. You are creating a Universal Windows Platform (UWP) app by using Microsoft Visual Studio 2015.
You discover that the app uses more memory than expected. You suspect that a method named Method1 is consuming most of the memory. You need to identify the changes in memory that are a direct result of executing Method1.
What should you do?
A. From Visual Studio, set a breakpoint on the method and immediately after the method.Fromthe Diagnostic Tools, clickTake Snapshotwhen each breakpoint is hit.
B. From the Debug tab in Visual Studio, clickStart Diagnostic Tools Without Debugging,selectApplication Timeline,and then clickStart.
C. From the Windows Performance Analyzer, record the memory consumption.
D. From Windows Performance Monitor, create a Data Collector Set (DCS). Start the DCS, run the app, and then stop the DCS.
Correct
Answer: A
Explanation:
Find memory leaks and inefficient memory while you’re debugging with the debugger-integrated Memory Usage diagnostic tool. The Memory Usage tool lets you take one or more snapshots of the managed and native memory heap.
Although you can collect memory snapshots at any time in the Memory Usage tool, you can use the Visual Studio debugger to control how your application executes while investigating performance issues. Setting breakpoints, stepping, Break All, and other debugger actions can help you focus your performance investigations on the code paths that are most relevant.
References:
https://msdn.microsoft.com/en-us/library/mt125494.aspx
Q20. HOTSPOT
You are designing a Universal Windows Platform (UWP) app that will access external data sources. The data sources have the following requirements:
The data must be stored in a relational database.
The data sources must be stored in a public cloud.
The app must not connect directly to the database.
The app must access the data sources by using HTTP verbs.
You need to identify the appropriate data storage type and the appropriate method to use to access the data sources. What should you identify? To answer, select the appropriate options in the answer area.
Hot Area:
Answer:
Explanation:
Microsoft Azure SQL database is a relationaldatabase-as-a-servicein the cloud.
Through the .NET Web API you can access relational database through HTTP verbs..Net’s Web API is an easy way to implement a RESTful web service using all of the goodness that the .net framework provides.REST stands for ‘Representational State Transfer’ and it is an architectural pattern for creating an API that uses HTTP as its underlying communication method.
Incorrect:
Not: Microsoft AzureDocumentDB
DocumentDB is a NoSQL(not relational)document database for big data solutions handling JSON data that require easy scaling and high availability.
Not: Microsoft Azure Table storage
Azure Table storage is a service that stores unstructured NoSQL(not relational)data in the cloud.