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. Syntax for declaring a string called 'userName'
UITextField
mutators
NSString *userName;
segue

2. Dimensions of iPad (in points)
1024 x 768
label
Option+Command+ 0
contentSize

3. You have created some 'breadcrumbs' using NSLog to trace the path of your code - and the debug area is open - yet you see no information in the panel. What's the problem and what is the solution?

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4. Given: [graduationParty addAttendee: @'Aunt Jane' withDish: @'deviled eggs']; The 'receiver' is _______; the 'selector' is _________
UIPicker
[<object variable> <method name>];
graduationParty ... addAttendee:withDish
#import <UIKIT/UIKIT.h>

5. Language used to write iOS apps
static
Objective-C
performance
png

6. Key sequence to hide/show Utilities View
Command+S
Option+Command+ 0
NSDate
UITextView

7. Size of iPhone retina icon image in pixels
114 x 114
@end
ommand+Return
@

8. Opens the Xcode Quick Help Assistant
NSDate
class
Option-click a symbol
segue

9. Storage place for a piece of information specific to a class
Identity Inspector
instance variable
modal
png

10. The Inspector you would access to gain access to various accessibility attributes
storyboard
NSString *userName;
Option+Command+ 0
Identity Inspector

11. The Round Rect Button is found in this library
The Console area of the Debug area
png
subclass
Object Library

12. Files used to create a class
interface and implementation files
instantiation
@synthesize
disclosure triangle

13. Every iOS application implements a subclass of _________
productivity
@synthesize directive
UIApplication
Single View Application

14. Prior to ARC - you used these terms alot
'Interface Builder'
productivity
retain - release - dealloc - autorelease
512MB

15. What type of object does a web view expect as a parameter when loading a remote URL?
pound
boiler-plate
alpha
NSURLRequest

16. What computer language is the storyboard written in?
property list
Determine how controls resize/reposition themselves when a device changes orientation
alpha ... 0
XML

17. Tests to see whether two values are equal
instantiate
scene
switch
==

18. Dimensions of iPhone (in points)
interface file
[myLabel setText:@'Howdy'];
320 x 480
To provide a convenient way of setting the button's title in the code

19. setters
Command+S
segmented control
mutators
casting

20. IB

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21. Which Apple project template creates a simple view/view controller application
contentSize
NeXSTEP
utility
Single View Application

22. Crash statement likely when an NSString is assigned a value with an incorrect format
Program received signal: EXC_BAD_ACCESS
NSDate
implicitly declare a matching instance variable
IBAction)moveMe:(id)sender;

23. API
Disables the Return key on the keyboard unless the user has entered at least a single character of input into the field
Application Programming Interface
#import 'myFile.h'
:

24. Master class in iOS
Application Programming Interface
NSObject
segue
double

25. In your implementation file - the _____ method (provided in stub form by Apple) runs after machine language code reserves some space in memory for your View. This method is often used to create a 'clean slate' as an app opens.
image view
segue
viewDidLoad
To provide a convenient way of setting the button's title in the code

26. This Xcode utility allows you to check CPU usage - memory allocation and network/file access (among other things)
Instruments
Collections
NSDictionary
void

27. A transition between scenes - frequently with a visual transition effect applied
User Interface
segue
Human Interface Guide
nonatomic

28. The Inspector you would use to control your layout in Interface Builder
alpha ... 1
Isolate the functional components of an app
Size Inspector
Command + Tab

29. In most graphical user interfaces - a _____ view is a view that must be dismissed ('OK' button - 'Cancel' button for example) before the user can perform any other actions in the application.
parameter
@synthesize directive
modal
com.basicversity

30. Apple's classes often provide a special initialization method called a _____ method
57 x 57
scene
double
convenience

31. Name of the drop-down menu in Xcode that lets you select the device used with the iOS Simulator
class
accessible apps
Scheme
Something unique - based on the app's name (perhaps abbreviated). Avoid 'NS' or 'UI' since they are used in Apple's frameworks. A framework or library should always be prefixed. For a simple app - they are not necessary.

32. Any 'directive' statement begins with this symbol
Disables the Return key on the keyboard unless the user has entered at least a single character of input into the field
@
#import <UIKIT/UIKIT.h>
accessors

33. Syntax to include UIKIT in a class
graduationParty ... addAttendee:withDish
#import <UIKIT/UIKIT.h>
[[<class name> alloc] init];
<>

34. A class that manages the user's interaction with the iDevice
#import 'myFile.h'
NSArray
view controller
UILabel *myLabel = [[UILabel alloc] initWithString:@'GO!'];

35. Defines the functional building blocks (classes) that make iOS devices perform certain actions
do{/*stuff to do here*/}while(<boolean expression>);
hasShrunk==YES && hasMoved == YES
IBAction
Cocoa Touch

36. 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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37. @property directives should be placed ____ (above or below) any IBActions in the header file
alpha ... 0
NSMutableArray
token
above

38. Method used to print information in an output panel
retain - release - dealloc - autorelease
@end
*
NSLog

39. MVC
Model-View-Controller
web view
Xcode
Scheme

40. Proper way to pronounce a *.xib file

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41. Two-way selection logic block
512MB
segue
Jump Bar
if(<boolean condition>){/* stuff to do*/} else{ /*stuff to do*/}

42. Key sequence to hide/show Navigator View
//blah blah blah
Command+0
!
Jump Bar

43. Class of strings that can be changed
model
NSMutableString
Jump Bar
nonatomic

44. IDE for iPhone Development
Xcode
Application Programming Interface
1024 x 768
Touch Up Inside

45. Formatting placeholder for strings
NSDate
%@
nonatomic
Object Library

46. NS stands for...
eXtensible Markup Language
inspector and library
modal views
NeXSTEP

47. In the US - the '#' symbol is often called the ____ symbol
IBOutlet
Integrated Development Environment
pound
while(<boolean expression>){/*stuff to do here*/}

48. Key sequence to open the Attributes Inspector
Isolate the functional components of an app
@
Option+Command+4
Actions

49. Storage location for a piece of information
YES
Cocoa Touch
variable
IBAction

50. Class that builds upon another class
XML
do not
subclass
CGAffineTransform