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. This type of app is typically one screen - and gives you the basics with minimal interaction
label.text=@'Hello World!';
id
utility
UIViewController

2. Define a collection of methods to perform a task
prototyping
Utility apps
protocols
implementation file

3. OOP
Object-oriented programming
instance variable
debugger
2

4. Class that builds upon another class
subclass
alpha
ption+Command+Return
float

5. What's the difference between Cocoa and Cocoa Touch?
Cocoa is the development framework used for most native Mac OS X applications; Cocoa Touch is customized for a touch interface
First Responder
property list
Double-click

6. Which Apple project template creates a simple view/view controller application
114 x 114
CGAffineTransform
label.text=@'Hello World!';
Single View Application

7. IDE for iPhone Development
!=
instantiate
for(<initialization>;<test condition>;<update instruction>){/*do this over and over*/}
Xcode

8. Always used to end the list of objects when initializing an array
productivity
nil
Snapshot feature
Group

9. A common button type that indicates additional information is available
detail disclosure
bgImages = [[NSArray alloc] initWithObjects: wp1 - wp2 - wp3 - wp4 - wp5 - nil];
sending an object a message
Cocoa Touch

10. SDK

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11. MVC
<>
view
scene
Model-View-Controller

12. The ________ class provided a container for the management and display of views
protocols
Disables the Return key on the keyboard unless the user has entered at least a single character of input into the field
UIWindow
NSString

13. A class that implements a protocol is said to ____ to that protocol
protocols
The Console area of the Debug area
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.
conform

14. Closes an interface file
<type> <variableName>;
@end
Treats the field as a password - hiding each character as it is typed
static

15. Given: [graduationParty addAttendee: @'Aunt Jane' withDish: @'deviled eggs']; The 'receiver' is _______; the 'selector' is _________
com.basicversity
retain
@end
graduationParty ... addAttendee:withDish

16. Syntax for reserving memory and initializing an object
User Interface
accessors
Cocoa Touch - Media - Core Services - Core OS
[[<class name> alloc] init];

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

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18. UI
h
alpha ... 0
User Interface
Cocoa Touch

19. The HIG requires some kind of _____ element in a cell if there is more information available
Attribute settings for some onscreen controls (like text areas) that analyze content and provide helpful links based on what they find. For example - phone numbers can be touched to dial the phone; web addresses can launch Safari if tapped - etc
%d
Utility apps
disclosure

20. Shortcut for writing: count = count + 1;
nested message send
implementation file
storyboards
count++;

21. Shortcut for writing: x = x - 1;
Command plus the navigator's position in the selector. For example - the project navigator shortcut is Command-1
do not
NSURLRequest
x--;

22. Apps written to assist users with special disabilities
#import <UIKIT/UIKIT.h>
accessible apps
Snapshot feature
eXtensible Markup Language

23. Property affecting an element's transparency
NSURL
NSMutableArray
alpha
UIViewController

24. A transition between scenes - frequently with a visual transition effect applied
segue
!
NSString *userName;
detail disclosure

25. Class that creates an array capable of being changed after it is create
NSMutableArray
interface and implementation files
Cocoa Touch
class

26. ______ are variables that can store a ____ to an object.
Model-View-Controller
1024 x 768
Commmand-R
Outlets ... pointer

27. Data type for whole numbers
Application Programming Interface
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.
self
int

28. Postcondition repetition structure syntax
void
do{/*stuff to do here*/}while(<boolean expression>);
detail disclosure
@synthesize directive

29. If a method name includes a colon (:) this indicates a required _________
nibfile
parameter
nonatomic
accessible apps

30. Fixed iteration repetition control structure syntax
Model-View-Controller
[myLabel setText:@'Howdy'];
for(<initialization>;<test condition>;<update instruction>){/*do this over and over*/}
==

31. Resembles a slot machine display
UIPicker
-
<type> <variableName>;
self

32. A ______ is where you edit a view and assign a controller to it.
scene
view
Human Interface Guide
<type> <variableName>;

33. You are creating an app for a company whose URL is http://www.basicversity.com . What should be the company identifier for the app when you begin the project?
variable
YES
com.basicversity
bgImages = [[NSArray alloc] initWithObjects: wp1 - wp2 - wp3 - wp4 - wp5 - nil];

34. Opens the Xcode Quick Help Assistant
class
UIApplication
YES
Option-click a symbol

35. The '@' symbol is shorthand for creating one of these
NSString
To provide a convenient way of setting the button's title in the code
mutators
disclosure

36. Indicates a lack of any value at all
disclosure triangle
immersive
nil
implicitly declare a matching instance variable

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

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38. Multiline text entry block
Nib (but a few call it 'zib' but that's not preferred)
UITextView
debugger
hasShrunk==YES && hasMoved == YES

39. Alternative selection mechanism when many conditions exist
#import <UIKIT/UIKIT.h>
switch
Objective-C
Actions

40. Used to test an app without needing an actual physical device
iOS Simulator
strong
IBAction)moveMe:(id)sender;
Command+0

41. Key sequence to hide/show Navigator View
Command+0
inspector and library
[myLabel setText:@'Howdy'];
Command+1

42. The Inspector you will need if you want to connect a custom class to an object in Interface Builder
NSLog(@'%s' - __FUNCTION__);
Identity Inspector
disclosure
storyboard

43. Formatting placeholder for a floating point value with one digit on the left of the decimal and two digits on the right
void
%1.2f
do{/*stuff to do here*/}while(<boolean expression>);
header

44. Key sequence to open the Project Navigator (left panel)
Command+0
Command+1
NSArray
Treats the field as a password - hiding each character as it is typed

45. Symbol often denoting a 'pointer'
<>
*
Cocoa Touch
wrap

46. Synonym for interface file
header
2
rand( )%21
NSMutableString

47. Write a statement to declare and initialize a label object called 'myLabel' to 'GO!'

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48. Master class in iOS
interface file
<>
Objective-C
NSObject

49. Shortcut for writing: y = y * 5;
while(<boolean expression>){/*stuff to do here*/}
control-dragging
First Responder
y *= 5;

50. Recommended image type for button graphics
Actions
immersive
switch
png