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Essentials of Developing Windows Store Apps using HTML5 and JavaScript

Question No: 21 – (Topic 2)

You need to ensure that the about.html page is displayed according to the requirements. Which attribute should you add to the DIV element in line AB07?

  1. data-win-control=quot;WinJS.UI.GridLayoutquot;

  2. data-win-control=quot;WinJS.UI.AppBarn

  3. data-win-control=quot;WinJS.UI.ListLayoutquot;

  4. data-win-control=quot;WinJS.UI.SettingsFlyoutquot;

Answer: B

Question No: 22 – (Topic 2)

You are preparing to deploy the app.

You need to ensure that the app meets the deployment requirements. Which tool should you use to validate the app?

  1. Windows App Cert Kit

  2. System Center Configuration Manager

  3. Microsoft Deployment Toolkit

  4. SelfCert

Answer: A

Question No: 23 – (Topic 2)

You need to ensure that the about page is displayed. Which code segment should you insert at line DF13?

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  1. Option A

  2. Option B

  3. Option C

  4. Option D

Answer: C

Question No: 24 – (Topic 2)

You need to implement the getStoredCredentialsFull method. Which code segment should you insert at line CM13?

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  1. Option A

  2. Option B

  3. Option C

  4. Option D

Answer: C

Question No: 25 DRAG DROP – (Topic 2)

You need to ensure that product images are displayed according to the requirements.

Which attributes should you use? (To answer, drag the appropriate attributes to the correct locations in the answer area. Each attribute 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.)

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Answer:

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Explanation:

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C:\Users\Kamran\Desktop\image.jpg

Question No: 26 DRAG DROP – (Topic 2)

You need to ensure that the product details are displayed.

Which three actions should you perform in sequence? (To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.)

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Answer:

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Explanation:

Box 1: Bind the model to the view.

Box 2: Instantiate the model with product details.

View models connect to the app’s underlying model by calling instance methods. Box 3: Iterate through the product details.

Note:

  • Here are the relationships between a view, a view model and a model.

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  • MVVM is an architectural pattern. It is a specialization of the presentation model pattern that was introduced by Martin Fowler. It is also related to the model-view-controller pattern (MVC) and the model view presenter (MVP) pattern that you may already know.

An app that uses MVVM separates business logic, UI, and presentation behavior.

/ Models represent the state and operations of business objects that your app manipulates. For example, Hilo reads and modifies image files, so it makes sense that data types for image files and operations on image files are part of Hilo’s model.

/ Views contain UI elements, and they include any code that implements the app’s user experience. A view defines the structure, layout, and appearance of what the user sees on the screen. Grids, pages, buttons, and text boxes are examples of the elements that view objects manage.

View models encapsulate the app’s state, actions, and operations. A view model serves as the decoupling layer between the model and the view. It provides the data in a format that the view can consume and updates the model so that the view does not need to interact with the model. View models respond to commands and trigger events. They also act as data sources for any data that views display. View models are built specifically to support a view. You can think of a view model as the app, minus the UI. In Windows Store apps, you can declaratively bind views to their corresponding view models.

Question No: 27 – (Topic 2)

You need to ensure that the about.html page is displayed.

Which code segment should you insert at line DF13?

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  1. Option A

  2. Option B

  3. Option C

  4. Option D

Answer: B

Question No: 28 HOTSPOT – (Topic 2)

You are preparing to deploy the app.

You need to prepare the app according to the technical specifications.

Which tab in Visual Studio should you use? (To answer, select the correct tab in the answer area.)

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Answer:

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Topic 3, Tailspin Toys Background

You are developing a Windows Store app for Tailspin Toys. The app will allow customers to interact with toys online and to order toys.

Business Requirements User Interface

->The user interface must display toy categories, toys in each category, and product

details about the toys. The product details must include the toy name, description, and one or more photos in different views. The toy categories must be distinct, and each toy must belong to only one category at a time.

->The display of toy categories must remain at the top of the screen at all times.

->The display of all product details must be arranged in a grid.

->The user interface must allow the user to zoom images of toys, with a maximum

zoom factor of five.

->When inventory changes, the app must raise a toast notification with a brief sound alert. The toast notification must remain on the screen for five seconds.

->The area that displays the details of a single toy has the following requirements:

->It must be one-third of the size of the area of the toy detail grid.

->It must be on the left.

Settings

->All settings must use the Settings charm.

->The app must provide help and information.

Behavior

->The app must restore user toy selection during an unexpected app termination.

->The app state must be restored when the app is activated after termination.

Technical Requirements General

->App calls must initialize the TailspinArtUpdater object in response to a Process

Lifetime Management (PLM) notification.

->The app includes a library named ToyInventory, which will be used to access the toy inventory system. The library includes a method named DisplayInventory().

->Any compiler-generated metadata produced from this library must be consumable by JavaScript, C , and C# Windows Store apps.

The app must include an HTML5 control that has the following requirements:

->It must use a GetToylnventory event to display app settings.

->It must have a relative path of html/Toylnventory.html.

->It must be invoked by using a link named Show Inventory, which displays in- context access to settings.

Styling

The styling details of the app must be located in the default CSS file.

Help and information

->The app will call a function named LoadHelpContent to load help content from tailspintoys.html.

->The app will display the help content by using the SettingsFlyout control.

Application Structure

Relevant portions of the app files are shown below. (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.)

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Question No: 29 – (Topic 3)

You need to implement the event that will provide access to app settings. Which code segment should you use?

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  1. Option A

  2. Option B

  3. Option C

  4. Option D

Answer: D

Question No: 30 DRAG DROP – (Topic 3)

You need to handle the state of the app upon reactivation to meet the requirements.

Which four actions should you perform in sequence? (To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.)

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Answer:

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