Explain layer objects?
How nsoperationque works?
What is view object in iOS operating system?
What is the mean of not running state in ios?
Why do we override drawrect: method?
What are the Common reasons for app rejection from app store review process?
what is the difference between Xcode, Cocoa and Objective C?
What design patterns do you use in ios? : IOS Architect
Explain ios 7 airdrop?
Define ipa?
What is nsmanagedobjectmodel?
What is nsobject in ios?
From which ios version, arc is supported?