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






2. A class inherits all _ from its superclass and can add as many as it wants for its own purposes....






3. Class methods do not operate on an _ or have any access to _ variables....






4. Property List...






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






6. NSNumber - class...






7. At the top of any implementation file...






8. Files Owner...






9. id is a...






10. NSValue - class...






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






12. Hold data and know nothing about the user interface






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






14. Any individual object belonging to any class...






15. Delegation is an object oriented approach to






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






17. NSDate - class...






18. A callback is a function that is supplied in advance of an event - and...






19. The object to which a message is sent - the receiver can be referred to as self from inside the method that is invoked






20. When you send a message to _ - you are sending a message to _ - but demanding that the search for the method begin at the superclass....






21. Reducing details to focus on the core concepts






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






23. You use _ to implement the view






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






25. UITableViewController is a subclass of...






26. When a view controller presents a modal view controller - the _ of the modal view controller is set to be the parent of the presenting controller






27. In object oriented languages - we call methods that get and set instance variables

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






29. A view is a subclass of _






30. class methods...






31. A UITableViewController can fill all three roles of...






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






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






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






35. Values to be supplied as the parameters to the method






36. A responder is responsible for...






37. Why properties?






38. A block of statements identified by a name that can accept one or more arguments passed to it by value and can optionally return a value






39. If the view has no subviews - create it programmatically; if it has subviews






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






41. 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....






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






43. The integer prefix is...






44. What happens when the last owner calls release?

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45. Execution of the break statement...






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






47. In any application with UINavigationController - the navigation controller...






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






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






50. UIViewController has several methods that get called at certain times...