What is iOS?2 1850
What's fast enumeration?2 1821
What are the differences between categories and extensions?1 1429
What is a singleton?1 1334
Name and explain the iOS app states.1 1464
What are the memory management rules?1 1411
Name the memory management rules and their related methods.1 1512
Explain why delegates and notifications are different.1 1321
What is lazy loading?1 1478
Explain shallow copying and depth copying.1 1298
What is a struct?1 1418
Is the object retained if I call performSelector:withObject:afterDelay:?1 1871
Where do you test the developed apps if you do not have the device?1 1252
Does iOs supports multitasking?1 1355
What is dependency management tools?
How to use core data objects between two threads?
What is difference between mvc and mvvm in ios?
What are the different types of ios application states?
What size is 1x and 2x?
What is arc in ios?
What is difference between performblock: and performblockandwait:?
What is view object in ios?
What is the purpose of reuseidentifier? What is the benefit of setting it to a non-nil value?
What is sandbox in iOS operating system?
Enlist the methods to achieve concurrency in ios?
What is nsmanagedobjectcontext? What are the different concurrency types? Explain each type.
Give example scenarios when an application goes into inactive state?
What happens if the methods doesn’t exist?