Ensurepass


QUESTION 6

You need to implement the requirements for the behavior of the main page. Which code segment should you insert at line MP07?

A. clip_image001

B. clip_image002

C. clip_image003

D. clip_image004

Correct Answer: A


QUESTION 7

You need to ensure that the VideoProcessor component can be used by the Windows Store app. What should you do?

(Each correct answer presents part of the solution. Choose all that apply.)

Scenario Margie’s Travel (Case Study):

You are developing a Windows Store media sharing app for the sales and marketing team at Margie’s Travel. The app will allow team members to download documents and media about current and proposed products and services from the company’s cloud-based media manager service. Team members will be able to add new content to the cloud service and to print and share content.

Business Requirements

Behavior:

– Team members must be able to download product information data sheets, marketing materials, and product demonstration video clips from the company’s server.

– Team members must be able to select and upload multiple files that contain new and modified content as a batch.

– Team members must be able to stream video clips to other devices in the vicinity of the team member’s device. The app will not support the streaming of photographs.

– The app must allow team members to pause, restart, or cancel uploads and downloads of files. The app must report both the progress and completion status of these operations. It must also return results about upload and download operations.

User Interface:

– The app must include a photo viewer

– When photos are added or deleted in the photo viewer window, they must animate in and out of the field of view. Remaining photos must move to fill the empty space created when photos are deleted. The photo viewer must support semantic zoom.

– The app must display information on the lock screen of the device. The information must include text- based alerts and a value indicating the number of pending file downloads.

Technical Requirements

Behavior:

– The company has an existing component named VideoProcessor.

This component compresses video clips and performs other processing before the video clips are uploaded to the media manager service.

The component was written with managed code.

The VideoProcessor component will also be used by Windows Store apps developed in HTML5 and JavaScript.

The apps must be able to call the overload of the ProcessVideo() method that accepts a string and a Boolean value as parameters.

– When a team member selects a video clip to download, the app must download the file as a background task. After a download has started, the app should maintain the network connection

User Interface:

– The app must include a custom photo viewer control.

The control will be updated frequently and may be deployed separately from the rest of the app. The photo viewer control must support templates and styles.

User Interface:

– The app must include a custom photo viewer control.

The control will be updated frequently and may be deployed separately from the rest of the app. The photo viewer control must support templates and styles.

– The app must use a Grid control as the root layout control. The photo viewer must be placed in the second row of the grid.

– The appearance of the app must change when the app is in snapped mode. The first row of the root layout grid must not change height. The second row must fill all available space.

– Available video clips must be displayed in an extended ListView control class named Downloaded VideoList.

– The template for the DownloadedVideoList is already defined.

– New video clips should be added to DownloadedVideoList when the DownloadVideoQ method completes.

– New video clip items in the DownloadedVideoList should color change periodically to alert the team member.

Application Structure

Relevant portions of the app files are as follows. (Line numbers in the code segments are included for

reference only and include a two-character prefix that denotes the specific file to which they belong.)

clip_image005

clip_image006

clip_image007

clip_image008

A. Add the following attribute to line IP19. [Windows.Foundation.Metadata.DefaultOverload()]

B. Replace line IP01 with the following line of code. static class VideoProcessor

C. Replace line IP09 with the following line of code. public VideoProcessor(string videoName, int ID)

D. Add the following attribute to line IP14. [Windows.Foundation.Metadata.DefaultOverload()]

E. Replace line IP01 with the following line of code. public sealed class VideoProcessor

Correct Answer: ACE


QUESTION 8

You are developing a Windows Store app that uses a webcam.

You need to be notified if new webcams are connected to the system. Which class should you use?

A. ManagementObjectFinder

B. FileSystemWatcher

C. DeviceWatcher

D. ServiceDevice

Correct Answer: C


QUESTION 9

You are developing a Windows Store app that invokes asynchronous methods to keep the app responsive to user actions. The app must handle exceptions gracefully, so they are never displayed to the user. Which code segment should you use?

A. clip_image009

B. clip_image010

C. clip_image011

D. clip_image012

Correct Answer: A


QUESTION 10

You are preparing a Windows Store game update for deployment.

Game performance must be analyzed by using a profiling tool.

You need to ensure that you collect the most accurate performance data for the analysis. Which Visual Studio project configuration options should you use?

(Each correct answer presents part of the solution. Choose all that apply.)

A. Choose the Simulator deployment target for the game.

B. Use the Release build of the game.

C. Use the Debug build of the game.

D. Choose the Local Machine deployment target for the game.

Correct Answer: BD

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