1. What is KVO?
2. What does a CAEmitterCell do?
3. If a class conforms to a protocol what must it do?
4. What is a design pattern?
5. True or False? For an object to use constraints, it must have at least 3 constraint values.
6. What is the type of @selector(foo)?
7. What is @dynamic directive meaning in iOS?
8. What is one source of particles that are emitted by a CAEmitterLayer object?
9. What is the difference between #import and #include ?
10. What is (void*)0 ?
11. What are @try and @catch?
Objective C MCQs | Topic-wise