Please explain what is difference strong and weak reference?
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Explain application sandboxing.
Define decoding or deserialization?
What is arc?
How can an operating system improve battery life while running an app?
Whats the difference between NSArray and NSMutableArray?
What is mvc and mvvm in ios?
What is cocoa touch?
What is code signing in iOS operating system?
Explain about Viewcontroller lifecycle.
What is a memory leak in ios?
What is retain in ios?
What is view controller xcode?