[Free] 2017(Oct) EnsurePass Dumpsleader Microsoft 98-373 Dumps with VCE and PDF 41-50

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Mobile Development Fundamentals

Question No: 41 – (Topic 1)

Which two techniques will increase battery life when used in an XNA game? (Choose two.)

  1. Decreasing the frame rate

  2. Creating a SharedGraphicsDeviceManager instead of a GraphicsDeviceManager

  3. Increasing the size of the back buffer

  4. Calling SuppressDraw in your Update method when it is not necessary for the display to be updated

Answer: A,D

Explanation: A:The maximum frame rate is 30 frames per second. This was set as a compromise between battery life and quality.

D:Game.SuppressDraw Method

Call this method during Update to prevent any calls to Draw until after the next call to Update. This method can be used on small devices to conserve battery life if the display does not change as a result of Update.

Question No: 42 – (Topic 1)

What are two extension methods implemented by the Queryable class that support Language-Integrated Query (LINQ) queries? (Choose two.)

  1. Round

  2. Median

  3. Query

  4. Sum

  5. Select

Answer: D,E

Explanation: Sum(IQueryablelt;Decimalgt;)Computes the sum of a sequence of Decimal values.

Selectlt;TSource, TResultgt;(IQueryablelt;TSourcegt;, Expressionlt;Funclt;TSource, TResultgt;gt;)Projects each element of a sequence into a new form.

Question No: 43 – (Topic 1)

Which tool is used to unlock a Windows Phone 7 device?

  1. Windows Phone Developer Registration Tool

  2. Application Deployment Tool

  3. Microsoft ActiveSync

  4. Microsoft Zune software

Answer: A

Question No: 44 – (Topic 1)

Which built-in hardware is optional in Windows Phone?

  1. Compass

  2. A-GPS

  3. Wi-Fi networking

  4. Accelerometer

Answer: A

Question No: 45 – (Topic 1)

Which networking feature is newly supported in Windows Phone 7.5?

  1. wi-Fi

  2. Sockets

  3. Windows Communication Foundation (WCF) services

  4. WebRequest API

Answer: B

Question No: 46 – (Topic 1)

You develop an application that uses a list box to display a list of movies retrieved from a web service.

Which property of the ListBox class is used to link the movie list and data?

  1. Resources

  2. Data Context

  3. items

  4. ItemsSource

Answer: D

Question No: 47 – (Topic 1)

Which two keywords in C# can you use to define value types? (Choose two.)

  1. struct

  2. interface

  3. class

  4. enum

  5. delegate

Answer: A,D

Explanation: The value types consist of two main categories:

*Structs

*Enumerations

Note:

*The enum keyword is used to declare an enumeration, a distinct type that consists of a set of named constants called the enumerator list.

*A struct type is a value type that is typically used to encapsulate small groups of related variables, such as the coordinates of a rectangle or the characteristics of an item in an inventory. The following example shows a simple struct declaration:

public struct Book

{

public decimal price; public string title; public string author;

}

Question No: 48 – (Topic 1)

You are working on a Windows Phone 7.5 application in Microsoft Visual Studio. You plan to test the behavior of the application when tombstomng occurs.

You need to change the setting that instructs the debugger to use tombstoning instead of deactivation during testing.

Where can you find the setting?

  1. In the project#39;s properties

  2. In the Task List window

  3. In the Configuration Manager

  4. In the Toolbox window

Answer: A

Question No: 49 – (Topic 1)

Which tool or tools should you use to find out the Marketplace certification requirements of an application?

  1. Microsoft Visual Studio 2010 Express for Windows Phone

  2. The Tux.Net tool and Microsoft Hopper too

  3. Windows Phone Capability Detection Tool

  4. Windows Phone Application Deployment Too

Answer: C

Question No: 50 – (Topic 1)

Which three controls are supported for developing Windows Phone 7 Silverlight applications? (Choose three.)

  1. TabControl

  2. DataGrid

  3. StackPane

  4. Canvas

  5. Grid

  6. TreeView

Answer: A,B,F

Explanation: A:By default, the Windows Phone 7 SDK doesn#39;t have a TabControl. It is a quite useful component already available in Silverlight.

BF:Silverlight is packed with over 60 high-quality, fully skinnable and customizable out-of- the-box controls such as charting and media, new layout containers such as dock and viewbox, and controls such as autocomplete, treeview and datagrid.

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