Can you explain ios design patterns?
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Define iterator protocol?
Explain differentiate between release and pool drain?
How is it possible to improve battery life during execution of an application?
How do I open a csv file on my phone?
Explain retain counts in iOS operating system?
What is synchronous web request and asynchronous ?
What is the use of the UI Automation API?
Explain the difference between 'protocol' and 'delegate'?
What are lifecycle events of uiviewcontroller?
Differentiate ‘app id’ from ‘bundle id.’ Explain why they are used?
Do you know any other changes to ios 7 since wwdc?
What is strong weak in ios?