Which of the following iTunes application URLs are NOT valid?

When the genstrings tool discovers a key string used more than once in a single strings file, it:

What is the default value of the remoteParticipantVolume property of the class GKVoiceChatService in iPhone OS 4.0?

Which are NOT a property of UIImagePickerController class in iPhone OS 4.0?

Which properties of the GKSession class is readonly?

What type of value is assigned to the loc-args child property of alert property in an Apple Push Notification?

How can the application name of an iOS project be changed?

Difference between new and [[alloc]init] in iOS?

Output of following code? NSLog(@'%.2f',[[UIDevice currentDevice].systemVersion floatValue]);

Which is the best practice to find active internet connection?

What is the correct method to define a delegate object in an ARC Environment?