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Q:

What is SVG?

Answer

SVG stands for scalable vector graphics. It’s a text based graphic language which draws images using text, lines, dots etc. This makes it lightweight and renders faster.

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Subject: Application Development

Q:

What are the different new form element types in HTML 5?

Answer

These are the new form elements introduced in HTML 5:


Color


Date


Datetime-local


Email


Time


Url


Range


Telephone


Number


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Subject: Application Development

Q:

What are layer objects and what do they represent?

Answer

Layer objects are data objects which represent visual content. Layer objects are used by views to render their content. Custom layer objects can also be added to the interface to implement complex animations and other types of sophisticated visual effects.

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Subject: Application Development

Q:

What is the use of controller object UIApplication?

Answer

Controller object UIApplication is used without subclassing to manage the application event loop.


It coordinates other high-level app behaviors. 


It works along with the app delegate object which contains app-level logic.

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Subject: Application Development

Q:

Assume that your app is running in the foreground but is currently not receiving events. In which sate it would be in?

Answer

An app will be in InActive state if it is running in the foreground but is currently not receiving events. An app stays in InActive state only briefly as it transitions to a different state.

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Subject: Application Development

Q:

Which API is used to write test scripts that help in exercising the application's user interface elements?

Answer

 UI Automation API is used to automate test procedures. Tests scripts are written in JavaScript to the UI Automation API.  This in turn simulates user interaction with the application and returns log information to the host computer.

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Subject: Application Development

Q:

Whats the difference between a NSArray and a NSMutableArray?

Answer

A NSArray’s contents can not be modified once it’s been created whereas a NSMutableArray can be modified as needed, i.e items can be added/removed from it.

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Subject: Application Development

Q:

Whats a struct?

Answer

A struct is a special C data type that encapsulates other pieces of data into a single cohesive unit. Like an object, but built into C.

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Subject: Application Development