When is an app said to be in active state?
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What are advantages of arc over mrc?
What is difference between mvc and mvvm in ios?
Explain app id?
Define 'atomic' keyword?
Does iOs supports multitasking?
What is reference count in ios?
What is the difference between delegates and notifications in iOS operating system?
How do you stop apps running in the background on ios?
Mention the short-cut to edit variables in Scope?
What is difference between 'assign' and 'retain' keyword?
What are the Different types of persistent stores?
Why we use delegate in ios?