Define 'atomic' keyword?
Explain how to shut off message alerts in ios?
Explain the features is ios 6?
What is the difference between inheritance and category?
How to parse xml?
Explain how do I get a call when my ipad rings?
Define 'copy' keyword?
Explain the difference between nsarray and nsmutablearray?
Explain the difference between nil and nil?
What is arc?
Define ipa?
Explain the application lifecycle in ios?
What is the difference strong and weak reference?
What is use of nsoperation?
What is the difference between cocoa and cocoa touch?