What is race condition in ios?
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What is made up of nserror object?
what are all instruments available in Xcode?
Which api would you use to write test scripts to exercise the application’s ui elements?
How you will store user info (username, password or token) securely in ios?
How does the runtime handle message passing? What is message forwarding?
What is push notification?
Explain about NSURL Connection Delegates
Difference between release and autorelease ?
Tell me what is fast enumeration?
What is factory methods ? What is the advantage of using it ?
Explain the usage of struct?
How is retain different from assign?