Test your basic knowledge |

iOS 5 App Development Objective C

Subjects : it-skills, apple
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. NSString objects are usually sent _ rather than _...






2. NSNumber - class...






3. Core foundation classes are prefixed with _ and suffixed with _






4. A responder is responsible for...






5. In the last line of an init method...






6. Asking a class or object to execute a method






7. For view controllers that are closely related - like a table view controller and its detail view controller - you can simply give them _ that point to each other.






8. Proceed through the loop - jump back to the top and check again






9. When an object is added to a NSMutableArray - that object is sent the message to retain;...






10. We can use dot notation to reference...

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11. If you have extra work you want to do on the view...






12. Variable names tend to start with a _ letter; class names tend to start with an _ letter.






13. You use _ to implement the view






14. The integer prefix is...






15. In a class method you cannot access...






16. When an object is removed from an NSMutableArray - that object is sent the message release;...






17. When making a tableView always...






18. A view is a subclass of _






19. super - is used...






20. A method in a _ is required unless its preceded by an @optional.






21. A collection object - an ordered list of objects that can be accesed by an index






22. Designated initializer makes sure that every...






23. Only exists within the statement block there defined - outside of the block is fine






24. When overriding a method - all you need to is _ - you do not need to declare it in the header file because it has already been declared by the superclass....






25. In Cocoa Touch - the table view asks another object _ what it should display...






26. A delegate is a pointer to an object with a set of methods the delegate-holder knows how to call. In other words - it's _ from a later created object






27. When the message endEditing: is sent to a view - if it or any of its subviews or currently the _ - it will resign its first responder statues - and the keyboard will be dismissed.






28. The root view controller typically creates the next view controller - and the next _ creates the one after that






29. The class is responsible for what instance variables the instance has - but not the _ of those variables.






30. Order of the declarations for methods. _ come first - followed by _ - followed by any other methods...






31. C struct with a CGPoint origin and a CGSize size - in other words two c structs.






32. Inside a method - _ is an implicit local variable. Typically - _ is used so that an object can send a message to itself....






33. class methods...






34. Each _ has a 'designated' initializer method....






35. Instance Variables by default are called @protected meaning...






36. Origin of a view's coordinate system is _ left






37. id is a...






38. SomeClass* aVariable = [[SomeClass alloc] init]; is an example of what kind of instance?






39. Objective C only allows for single inheritance - so in regards to class you only ever see the following pattern






40. Ready-made instances...






41. Number one use of protocols in iOS...






42. A message is always contained in square brackets - and has three parts






43. Dynamic binding means that when we call a certain object's method - and there are several _ of that method - the right one is figured out at runtime.






44. Primitives and C Structures...






45. Reducing details to focus on the core concepts






46. In Objective C arrays can hold only...






47. All objects are accessed using...






48. NSValue - class...






49. Keep view and model objects in sync - control the 'flow' of the application - and save the model objects out to the filesystem






50. A pointer to the object being asked to execute a method