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. Reducing details to focus on the core concepts






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






3. Property List...






4. Object Oriented based analogue to a function is called a...






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






6. Whenever a UINavigationController is about to swap views - it sends out two messages






7. UIImageView is used to...






8. NSDate - class...






9. Three ways instances are created...






10. Prefixing a character string with an @ symbol [specific - NSString class]...






11. Classes describe two things...






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






13. When do you take ownership?...






14. 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






15. When making a tableView always...






16. class methods...






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






18. 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






19. if you implemented both the setter and getter - the @synthesize method...






20. A set of variables and associated methods. An object can be sent messages to cause one of its methods to be executed.






21. In Objective C - the name of a setter method is set plus the name of the instance variable it is changing - for example PossessionName would be...






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






23. Any other initializer a class has calls the _ designated initializer....

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


24. Designated initializer makes sure that every...






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






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






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






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






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

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


30. What happens when the last owner calls release?

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


31. A UITableView usually needs three different pieces...






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






33. 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.






34. It's class is sent the message alloc - which creates an instance of that class and returns a pointer to it - and then that instance is sent the message init - which gives its instance variables initial values.






35. id is a...






36. If you aren't going to initialize an instance reference pointer at the moment you declare it by assigning a real value - it's a good idea to assign it _.






37. After accessors have been defined in the header file...






38. Primitives and C Structures...






39. A view is a subclass of _






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






41. Class methods typically either create






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






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






44. 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....






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






46. The integer prefix is...






47. A view exists within a hierarchy. The window (an instance of UIWindow) is a view and the root of the hierarchy. It has _ (that appear on the window). Those views can also have _.






48. A function in the objective c library that simply displays or logs it's argument






49. A view is an...






50. 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.