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iOS 5 App Development Basics

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. Extension for an iPhone/iPad app






2. Implements a logical OR condition






3. IB

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4. A transition between scenes - frequently with a visual transition effect applied






5. To use a new class you need to _____ it






6. An alternative way to see the connections between an object in the Interface Builder and it's code in Xcode without using the Connections inspector

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7. How do you get rid of an onscreen keyboard?

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8. Correct the error: label.text = 'Hello World !';

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9. What type of object does a web view expect as a parameter when loading a remote URL?






10. An example of a common collection data type






11. Syntax for declaring a variable






12. Symbol used for inheritance






13. Formatting placeholder for a floating point value with one digit on the left of the decimal and two digits on the right






14. Companion to the @property directive






15. Given: #import <UIKit/UIKit.h> @interface WelcomeViewController : UIViewController @end The superclass for WelcomeViewController






16. The name of the panel to the left of the Interface Builder Editor panel






17. What event do you use to detect a button tap?






18. This type of app is mostly custom controllers and graphics






19. An app has boolean variables 'hasShrunk' and 'hasMoved'. Write a boolean condition that checks if each are true






20. Size of iPhone retina icon image in pixels






21. The Utilities area has two sections: ______ and ______






22. Apple's classes often provide a special initialization method called a _____ method






23. A class that implements a protocol is said to ____ to that protocol






24. Property affecting an element's transparency






25. 4 Top down technology layers making up iOS






26. Always used to end the list of objects when initializing an array






27. Every iOS application implements a subclass of _________






28. Denotes a class method






29. You have an instance variable called 'myLabel' that is a member of UILabel. In an app - you set it's text property to 'Howdy' with the correctly-written command: myLabel.text = @'Howdy'; Re-write this command using [ ] message-sending syntax

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30. A virtual 'box' for organizing related projects






31. Used to display image file resources and show simple animations






32. Alternative selection mechanism when many conditions exist






33. Implements a logical AND condition






34. Write a statement to declare and initialize a label object called 'myLabel'






35. _____ are methods that we can connect to events.






36. RAM for iPhone






37. Symbol often denoting a 'pointer'






38. NS stands for...






39. Another name for a 'button bar'






40. Class used to work with dates as objects






41. This file contains the scene - segue and relationship definitions for your project






42. Negation symbol






43. getters






44. The goal of the MVC design pattern






45. Word used to indicate that a user can't interact with a given element






46. Declare and initialize a string that says: 'Hello World' whose identifier if 'phrase' . Use the shortest command possible.

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47. Attribute that informs the system that the object referred to needs to be kept around and not discarded from memory






48. A fully opaque image has an _______ property value of ______






49. strong and nonatomic are examples of ...






50. Collection of interface elements and data storage elements etc you can access from your applications







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