Interview Questions.

Question 1. What Is Windows Phone?

Answer :

Windows Phone (referred to as WP) is a proprietary telephone working device developed with the aid of Microsoft. It is the successor to Windows Mobile, even though it is incompatible with the earlier platform. With Windows Phone, Microsoft created a new consumer interface, featuring a design language named "Modern" (which was formerly referred to as "Metro"). Unlike its predecessor, it is primarily aimed toward the customer market rather than the business enterprise marketplace. It became first launched in October 2010 with Windows Phone 7.

Question 2. What Is Windows Phone User Interface?

Answer :

Windows Phone features a user interface based totally on Microsoft's Windows Phone layout gadget, codenamed Metro, and turned into stimulated by way of the person interface in the Zune HD. The home display, referred to as the "Start screen", is made of "Live Tiles", that have been the muse for the Windows 8 live tiles. Tiles are hyperlinks to applications, capabilities, functions and character objects (together with contacts, web pages, programs or media objects). Users can add, rearrange, or take away tiles. Tiles are dynamic and replace in actual time – for instance, the tile for an email account could show the number of unread messages or a tile should display a stay update of the weather. Since Windows Phone 8, stay tiles can also be resized to either a small, medium, or large look.

. NET Interview Questions
Question three. What Is Windows Phone Web Browser?

Answer :

Internet Explorer on Windows Phone lets in the consumer to hold a listing of favourite internet pages and tiles linking to net pages at the Start display screen. The browser supports up to six tabs, which can all load in parallel. Other capabilities consist of multi-contact gestures, clean zoom in/out animations, the ability to shop photographs which are on internet pages, proportion web pages via e mail, and assist for inline search which lets in the consumer to look for a word or word in a web page by typing it. Tabs are synced with Windows 8.1 gadgets the use of Internet Explorer eleven.

Question four. What Do You Know About Windows Phone Media Support?

Answer :

Windows Phone helps WAV, MP3, WMA, AMR, AAC/MP4/M4A/M4B and 3GP/3G2 requirements. The video file formats supported on WP include WMV, AVI, MP4/M4V, 3GP/3G2 and MOV (QuickTime) requirements. These supported audio and video codecs might be depending on the codecs contained internal them. It has additionally been previously stated that the DivX and Xvid formats inside the AVI file layout also are playable on WP devices.

C Tutorial
Question five. Explain Windows Phone Multitasking?

Answer :

Multitasking in Windows Phone is invoked thru long pressing the "returned" arrow, which is present on all Windows Phones. Windows Phone 7 uses a card-based totally undertaking switcher, whereas later versions of Windows Phone make use of actual heritage multitasking.

C Interview Questions
Question 6. What Is Windows Phone Bluetooth?

Answer :

Windows Phone supports the following Bluetooth profiles:

Advanced Audio Distribution Profile (A2DP 1.2)
Audio/Video Remote Control Profile (AVRCP 1.3)
Hands Free Profile (HFP 1.5)
Headset Profile (HSP 1.1)
Phone Book Access Profile (PBAP 1.1)
Bluetooth File Transfer (OBEX) (from Windows Phone 7.Eight)
Windows Phone BTF help is to be had from Windows Phone 7.Eight, however is restrained to the moving of photos, tune and films thru a 'Bluetooth Share' app.

Question 7. Explain Windows Phone Hardware?

Answer :

Windows Phone 7 gadgets had been first produced by means of Dell, HTC, LG and Samsung. These hardware partners have been later joined via Acer, Alcatel, Fujitsu, Toshiba, Nokia, and Chinese OEM ZTE.

Windows Phone eight gadgets are presently being produced with the aid of HTC, Huawei, Nokia, and Samsung.

At the 2014 Mobile World Congress, Microsoft introduced that upcoming Windows Phone 8.1 gadgets will be manufactured by means of Gionee, HTC, Huawei, JSR, Karbonn, LG, Lenovo, Longcheer, Micromax, Nokia, Samsung, Xolo, and ZTE. Sony (under the Xperia or Vaio emblem) has additionally stated its intention to supply Windows Phone gadgets in the close to destiny.

Android Tutorial Android Interview Questions
Question 8. Can We Control The Web Browser Controls Zoom?

Answer :

No. There is not any programmatic way to zoom the manipulate. You have to consist of a viewport meta tag to set the initial scale level.

Question 9. How To Restart Or Shutdown My Application Programmatically?

Answer :

There is no API to do this. Hitting ‘back' when there's only one web page left at the stack is the way to go out the application. Hitting Start button does not exit, simply pauses it.

IOS Interview Questions
Question 10. How To Detect If My Application Is Exiting So I Can Save State?

Answer :

You can listen to Application.Exit, however this is probably too late most of the time. You should pay attention for the Pause occasion and store your state there.

IOS Tutorial
Question 11. How To Pin An App On The Emulator?

Answer :

You clearly run the software once to install it, after which browse to the application list, and click and hold the utility icon, you may then get a context menu with the choice to pin.

Mobile Testing Interview Questions
Question 12. Tell Me Will Texttrimming Property Be Available On Textblock?

Answer :

No. You need to hack it up together with your personal degree.

. NET Interview Questions
Question 13. Suppose I Am Hitting System.Invalidoperationexception In The Navigate Method Of The Webbrowsercontrol. What Gives?

Answer :

Don't call the navigate approach from your PhoneApplication Page's constructor. You ought to wait till control is loaded before you Navigate.

Mobile Testing Tutorial
Question 14. Explain I Am Getting Too Many Mouse Leaves On My Custom Control.?

Answer :

As some distance because the emulator is concerned, there may be no mouse; the whole lot is available in as a touch occasion and while the “finger” comes up, the mouse has left the scene, in view that there's no affordable place for it to be at.

Question 15. Tell Me Is It Temporary That The Control Styles Are Included In App.Xaml?

Answer :

Yes. In the final product a grasp 'established.Xaml' could be injected into your software. This injected dictionary could be based at the subject matter selected whilst your app is started. Dictionary is injected on every occasion your app starts offevolved.

Windows Presentation Foundation(WPF) Interview Questions
Question sixteen. I See Applications Using Listbox That Show Scrollbar Only On While Scrolling. How Can I Detect That I Am Scrolling?

Answer :

Microsoft hopes the templates in a future build may have this Scrolling and NotScrolling VisualStates.

Windows Presentation Foundation(WPF) Tutorial
Question 17. How To Dismiss The Sip Programmatically?

Answer :

Set the Focus() to some other UIElement this is focusable.

Mobile computing Interview Questions
Question 18. How To Detect The Resolution Of My Device?

Answer :

(App.Current.RootVisual as FrameworkElement).ActualHeight and (App.Current.RootVisual as FrameworkElement).ActualWidth gives you device's resolution.

If you need to recognize the seen length (taking AppBar / SystemTray into consideration) then just ask for it off the web page instead.

C Interview Questions
Question 19. Can Not Find Phoneapplicationpage.Fullscreen In April Ctp?

Answer :

SystemTray is an attachable belongings now. You can use it on your page xaml, some thing like:

<navigation:PhoneApplicationPage x:Class="WindowsPhone.Hello"
xmlns:shell="clr-namespace:Microsoft.Phone.Shell;assembly=Microsoft.Phone.Controls.Navigation"
shell:SystemTray.IsVisible="true">

Mobile computing Tutorial
Question 20. How To Save Silverlight Ui Elements Into An Image?

Answer :

In a later preview, earlier than RTT, WriteableBitmap can have a technique to shop as JPEG

jQuery Mobile Interview Questions
Question 21. How To Save Screen From An Xna App?

Answer :

Texture2D has a SaveAsJpeg technique and a SaveAsPng technique. Be conscious that Zune does no longer sync pngs, so saveasjpeg is recommended

In April's CTP, you may attempt:

MediaLibrary library = new MediaLibrary(); library.SavePicture(“My Picture”, streamToJpegData); // You can use this from inside a Silverlight app furnished you have the ID_CAP_MEDIALIB functionality. // You do need to make certain the Stream you bypass in contains JPEG file facts, but otherwise it must be just right for you.

Question 22. What Are The Supported Codecs For Video?

Answer :

Supported Codecs and field formats are listed in MSDN documentation: http://msdn.Microsoft.Com/en-us/library/ff462087(VS.92).Aspx Note: The Device Emulator does no longer have hardware decoders so the codec guide at the tool emulator is a great deal less than what is indexed. For Emulator you only have WMA, WMV, and VC1 software program decoders.

Mobile Security Tutorial
Question 23. What Is Send To Ap And Who Gets It?

Answer :

Send to AP is the Associated Press' way of extending the journalism ground to its users. Users can ship in information recommendations and images immediately to AP editors thru the Send to AP option underneath Settings. User information is only used for the purpose of contacting the consumer to confirm the end or to gather greater records.

Mobile Security Interview Questions
Question 24. How To Change Language Settings?

Answer :

Go to the Settings button on your tool
Select General
Select International
Choose the favored language
Android Interview Questions
Question 25. Can I Get Weather For My Location?

Answer :

Windows Phone 7 helps worldwide places, which a user can search for via inputting the metropolis name.

Mobile Marketing Tutorial
Question 26. How To Edit Location For Weather?

Answer :

Users can customize Weather beneath Settings. Locations for Local News and Weather are dealt with one after the other. Windows Phone 7 helps global places.

Mobile Developer Interview Questions
Question 27. How To Edit Locations For Local?

Answer :

Users can customise Local under Settings.

IOS Interview Questions
Question 28. How To Send Suggestions On How To Better The App To The Ap?

Answer :

Users can send function requests and feedback to the AP through the Feature Request alternative inside the software. Users can find the remarks options under Settings.

Question 29. What Content Can I Share/save?

Answer :

Users can percentage content material with their buddies via the percentage characteristic to be had on every story and photo.
Users can save articles, photos and films to the Saved folder in AP Mobile. The stored folder is at the fourth panel of the first display
Mobile Application Testing Interview Questions
Question 30. What Is The Windows Phone Front Page?

Answer :

Users can add and order as many categories as they want and two headlines for each class may be displayed at the Front Page.

Question 31. How To Customize Front Page?

Answer :

Users can locate the Customize option under Settings on the primary display.

Question 32. Some Images Look Different When Synced To The Device And Read Programmatically. Do Decoders Change These?

Answer :

No. Decoders and apps show them as they're. Zune software does resize them when syncing them, that might be the purpose in your variations

Mobile Marketing Interview Questions
Question 33. How The Volume Work Between Apps And Hardware Buttons On The Device?

Answer :

Applications get to manipulate the quantity for their streams however the hardkeys manage the final grasp output level.

Mobile Testing Interview Questions
Question 34. Where Is Httputility Class, Since There Is No System.Home windows.Browser Namespace?

Answer :

HttpUtility is in System.Net namespace You also can find options for escaping strings at Uri.EscapeDataString and Uri.UnescapeDataString ..

Question 35. Suppose My Site Is Down, And Async Calls Are Taking Too Long To Timeout. How Can I Set A Reasonable Timeout?

Answer :

Per MSDN medical doctors, you have to call Abort() in your request while you sense iti s suitable timeout

Question 36. Tell Me Are There Apis To Read Rss/atom Feeds?

Answer :

You ought to use System.ServiceModel.Syndication from the computing device because it dependencies are entirely present in CF

Windows Presentation Foundation(WPF) Interview Questions
Question 37. How To Sniff Network Traffic From The Emulator?

Answer :

Netmon 3.4 (beta) defintitely works. Fiddler works too. If the usage of fiddler, do not forget to exchange it to both trap “non-browser” or “all” visitors and start fiddler earlier than launching the emulator.

Question 38. Tell Me Is Wcf Supported In Windows Phone?

Answer :

WCF is supported on WP7.

When you have a look at the SL3 model of WCF, WP7 supports that except for the subsequent:

PollingDuplex help
Runtime code era assist for ChannelFactory.CreateChannel APIs
Astoria/Azure assist
Question 39. Explain Does The Web Browser Control Share The Ie Cache?

Answer :

No. Each app has its own wininet cache. The webbrowser manage instances for your app will use that app's cache. The IE cache may be separate

Question 40. Tell Me Is There A Way To Detect If Application Is Idle?

Answer :

No. You should do this your self. Your self (you could enroll in ManipulationStarted on the root frame with handled=actual and then use a easy timer).

Mobile computing Interview Questions
Question 41. Explain Where Is Xmldocument Class?

Answer :

Instead of Xml Document, using XDocument from System.Xml.Linq.Dll

Question 42. Suppose I Am Trying To Receive Toast Notifications In Emulator App. I Got Everything Setup But Notification Does Not Show Up In Emulator At All?

Answer :

Make positive you have got a product / publisher call set in the appear.

Open WindowsPhonepmanifest.Xml, under Properties. Edit Publisher="" to Publisher="some thing". Redeploy.

JQuery Mobile Interview Questions
Question 43. How To Access The Liveid Credentials A User Has Entered Into The Device?

Answer :

In this release, the credentials aren't available to third birthday celebration apps. You will want to prompt the user for credentials and manage these within your app.

Question 44. Tell Me Is Securestring Supported In Windows Phone?

Answer :

No. Securestring isn't always in Silverlight.

Question forty five. How To Deserialize Json From A Rest Call?

Answer :

Use DataContractJsonSerializer. It is in System.Servicemodel.Web

Question forty six. What Happens To Isolatedstorage When App Is Uninstalled?

Answer :

It receives deleted. Content saved to media library is not deleted on Uninstall

Question 47. Tell Me Where Is The Best Recommended Place To Store Both Static And User-special Configuration Information?

Answer :

You can use the IsolatedStorageSettings.ApplicationSettings.

Question 48. Tell Me Is There An Api For Retrieving Information On The Files Located In The Store? I Am Looking To Check When It Was Last Written?

Answer :

Try IsolatedStorage.GetLastWriteTime

Question 49. Tell Me In My Code The Method Marked By [ondeserialized] Is Never Called After Deserialization. Is This A Known Issue?

Answer :

The following conditions have to be met for a valid OnDeserialized callback:

 The accessibility of the approach must be public. It can also be internal with InternalsVisibleTo furnished to the System.Runtime.Serialization meeting.
 Return kind must be void.
 There should be exactly one parameter which ought to be of the type StreamingContext.
 There need to be only one of the four callbacks provided at the technique.
Question 50. Can You Please Explain The Best Way To Detect That I Am In Design-mode In Expression Blend Or Visual Studio?

Answer :

DesignerProperties.IsIndesignTool

Question 51. Tell Me Is There A Way To Know If My Code Is Running On Emulator Or Device?

Answer :

Check System.Environment.DeviceType

Question 52. Suppose I Have Lost One Of The Application Templates In Visual Studio 2010. It's Available In The File System But Not In Visual Studio. Any Idea?

Answer :

Try going for walks Devenv /setup.

Running devenv /installvstemplate may additionally paintings; however that is going to gradual down overall VS performance. The /installvstemplate is a development most effective choice that makes it smooth for developer to test their templates. This shouldn't be used on quit user machines. Devenv /setup does lots of greater processing and caching to hurry up VS performance.

Question fifty three. Suppose Have A Very Simple Application That Uses The Applicationbar. The App Bar Shows One Menu Item When In Portrait. However As The Second Image Shows The App Bar Displays Now Items In Landscape Mode. Is That By Design Or A Bug?

Answer :

Yes, it's a recognised trouble in the emulator on machines that do not assist the hardware extended pictures within the emulator. It works well on devices and machines that do

Question fifty four. Suppose I Am Trying To Detect If An External Headset Is Attached To The Phone,can I Use Microsoft.Xna.Framework.Audio.Microphone.Isheadset?

Answer :

No. This property is real all of the time for the phone