Which two of the following are true about (void)didReceiveMemoryWarning method?

The configuration data of table view objects in Xcode 4.x is loaded from:

What is the use of Alpha value that is available in attributes of every Interface Builder object?

How can you create an OpenGL ES texture with a .png image?

Can non-main threads poll for events?

Which is a feature of CAPropertyAnimation class in Core Animation?

What is the function of the Code Sense feature in Xcode?

If the code is written using the Core Foundation and Foundation macros, the simplest way to create strings files is:

What method definition do if the value of the accessed counter is 0? - (void)discardContentIfPossible

Which Core Audio Service framework is used to record, play back, pause, loop, and synchronize audio in iPhone OS 4.0?

What will the hitTest: object of the CALayer class return if the point lies outside the receiver's bounds rectangle?