What are some common execution states in ios?
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Explain parent-child context setup?
Is core data is thread safe?
What is arc ? How it works?
Is uikit thread safe?
What are the Different types of persistent stores?
What is the difference between NSArray and NSMutableArray in iOS operating system?
Multitasking support is available from which version in iOS operating system?
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What are “strong” and “weak” references? Why are they important and how can they be used to help control memory management and avoid memory leaks?
Define decoding or deserialization and encoding or serialization?
Assume that system is running low on memory. What can system do for suspended apps?
Differentiate between release and pool drain?
Multitasking support is available from which version?