Test your basic knowledge |

iOS 5 App Development Basics

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. Companion to the @property directive
[myLabel setText:@'Howdy'];
Identity Inspector
[<object variable> <method name>: p1];
@synthesize

2. Beginning with iOS4 - applications no longer terminate when the user presses the...
UILabel *myLabel = [[UILabel alloc] init];
count++;
*
Home button

3. Apps written to assist users with special disabilities
implementation file
accessible apps
Objective-C
==

4. Term used to describe each screen of an iPhone app
y *= 5;
Identity Inspector
'Interface Builder'
view

5. Typical header syntax for a button that will be applying the 'moveMe' action in an app
wrap
Commmand-R
iOS Simulator
IBAction)moveMe:(id)sender;

6. Code fragment for echo printing the name of a function as it loads (for tracing the sequence of code in a project...leaving breadcrumbs)

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7. Storage place for a piece of information specific to a class
y *= 5;
instance variable
Identity Inspector
<type> <variableName>;

8. 4 Top down technology layers making up iOS
UIImage *wp1 = [UIImage imageNamed:@'wallPaper_01.png'];
disclosure
NSString *phrase = @'Hello World';
Cocoa Touch - Media - Core Services - Core OS

9. Extension for an iPhone/iPad app
prototyping
xcodeproj
@
self

10. Syntax to include the fictitious user-created file 'myFile.h'

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11. Opens the Xcode Quick Help Assistant
NSURLRequest
<>
Option-click a symbol
hasShrunk==YES && hasMoved == YES

12. Boolean for 'false' in Objective-C
token
storyboard
NO
Identity Inspector

13. Document Apple uses to evaluate apps for the App Store
xcodeproj
stub
Human Interface Guide
myImage@2x.png

14. Declaring a method in an interface file - before it is actually implemented is called _______ the method
UITextField
prototyping
while(<boolean expression>){/*stuff to do here*/}
Hold down the Option key and point to the other label. The distance will be shown

15. Used to indicate any type of object
id
Command + Tab
below
ption+Command+Return

16. A ______ is where you edit a view and assign a controller to it.
scene
alpha ... 0
Cocoa Touch - Media - Core Services - Core OS
Cocoa is the development framework used for most native Mac OS X applications; Cocoa Touch is customized for a touch interface

17. The name of the panel to the left of the Interface Builder Editor panel
NSString *phrase = @'Hello World';
Model-View-Controller
NSObject
Document Outline Area or Outline View

18. Fixed iteration repetition control structure syntax
for(<initialization>;<test condition>;<update instruction>){/*do this over and over*/}
eXtensible Markup Language
NO
alpha ... 0

19. In a stepper control - when this attribute option is checked - the stepper's value is automatically set to the minimum value when the maximum value is exceeded (or vice versa).
UIImage *wp1 = [UIImage imageNamed:@'wallPaper_01.png'];
bgImages = [[NSArray alloc] initWithObjects: wp1 - wp2 - wp3 - wp4 - wp5 - nil];
NeXSTEP
wrap

20. What property needs to be set before a scroll view (UIScrollView) will scroll?
NeXSTEP
stub
contentSize
1024 x 768

21. Key sequence to hide/show Navigator View
Command+0
Outlets ... pointer
:
retain - release - dealloc - autorelease

22. Negation symbol
!
User Interface
Cocoa Touch
CGAffineTransform

23. Key sequence to open the Standard Editor
contentSize
Identity Inspector
for(<initialization>;<test condition>;<update instruction>){/*do this over and over*/}
ommand+Return

24. Purpose of 'Secure' attribute for text fields
ption+Command+Return
Treats the field as a password - hiding each character as it is typed
affine
token

25. If a method name includes a colon (:) this indicates a required _________
casting
parameter
[<object variable> <method name>: p1];
Xcode

26. Syntax for sending an object a message with one parameter (p1)
[<object variable> <method name>: p1];
nested message send
nonatomic
||

27. A fully opaque image has an _______ property value of ______
NSArray
hasShrunk==YES && hasMoved == YES
alpha ... 1
/*blah blah blah */

28. Attribute that informs Xcode not to worry about different parts of the application using a property at the same time
Objective-C
:
nonatomic
Size Inspector

29. Formatting placeholder for strings
'Software Development Kit'
//blah blah blah
%@
Cocoa Touch

30. NS stands for...
NeXSTEP
/*blah blah blah */
modal views
contentSize

31. Data type for highly precise numbers with huge numbers of decimal places
[[<class name> alloc] init];
320 x 480
double
Cocoa Touch

32. Class of collection data type which stores information as object/key pairs
To provide a convenient way of setting the button's title in the code
immersive
NSDictionary
%

33. The Round Rect Button is found in this library
Object Library
@end
web view
Disables the Return key on the keyboard unless the user has entered at least a single character of input into the field

34. Recommended image type for button graphics
Object library
Command+S
NO
png

35. Class that creates an array capable of being changed after it is create
-
'Interface Builder'
NSMutableArray
if(<boolean condition>){/* stuff to do*/} else{ /*stuff to do*/}

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

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37. This type of app typically involves hierarchical data
if(<boolean condition>){/* stuff to do*/} else{ /*stuff to do*/}
hasShrunk==YES && hasMoved == YES
Jump Bar
productivity

38. Shortcut for writing: count = count + 1;
NSURLRequest
Application Programming Interface
alpha ... 1
count++;

39. Which Apple project template creates a simple view/view controller application
switch
model
do not
Single View Application

40. ______ and ______ define the connections between scenes.
modal views
nil
performance
Seques .... relationships

41. Objective-C is an extension (super set) of...
C
sending an object a message
Outlets ... pointer
[myLabel setText:@'Howdy'];

42. iPhone and iPad ____ support .png transparency
Outlets ... pointer
do not
'Interface Builder'
Objective-C

43. Apps that provide easy access to a single screen of information with a backside view for modifying preferences
Human Interface Guide
accessible apps
Utility apps
switch

44. Indicates a lack of any value at all
Option+Command+4
prototyping
Snapshot feature
nil

45. SDK

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46. Size of iPhone retina icon image in pixels
alpha ... 1
@end
Instruments
114 x 114

47. A class that manages the user's interaction with the iDevice
Instruments
viewDidLoad
view controller
m

48. ______ enable applications to store multiple pieces of information in a single object
%1.2f
Collections
[<object variable> <method name>: p1];
%

49. Word used to indicate that a user can't interact with a given element
implementation file
productivity
Human Interface Guide
static

50. Define a collection of methods to perform a task
debugger
protocols
float
storyboard