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. Process of creating an active object from a class
instantiation
Identity Inspector
attributes
NSMutableString


2. A virtual 'box' for organizing related projects
workspace
NSURL
id
C


3. Class that allows URL management
:
'Interface Builder'
NSURL
void


4. SDK

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5. In the US - the '#' symbol is often called the ____ symbol
Identity Inspector
[shrinkButton setTitle:@'Grow' forState: UIControlStateNormal];
pound
myImage@2x.png


6. Key sequence on a Mac to select between open application
NSMutableString
y *= 5;
Single View Application
Command + Tab


7. Crash statement likely when an NSString is assigned a value with an incorrect format
implementation file
for(<initialization>;<test condition>;<update instruction>){/*do this over and over*/}
alpha ... 0
Program received signal: EXC_BAD_ACCESS


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

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

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10. Class that creates an array capable of being changed after it is create
'Software Development Kit'
iOS Simulator
NSMutableArray
Determine how controls resize/reposition themselves when a device changes orientation


11. Declaring a method in an interface file - before it is actually implemented is called _______ the method
IBAction)moveMe:(id)sender;
utility
prototyping
mutators


12. Something the simulator cannot reliably test
model
performance
nonatomic
Look at the three icons at the upper left portion of the Debug console. The far left one - 'Show only the Variables View' will not show the NSLog-ed information. Click the center icon ('Show the Variables View and the Console') or the right icon ('Sh


13. Write a line of code creating a pointer to a wall paper image called 'wp1' that refers to a resource in an app with the file name 'wallPaper_01.png'

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14. A fully opaque image has an _______ property value of ______
protocols
114 x 114
alpha ... 1
Option+Command+ 0


15. Templates fill in a bunch of ______-_______ code that serves as a framework in which to write future implementations
Program received signal: EXC_BAD_ACCESS
boiler-plate
[<object variable> <method name>: p1];
!


16. Shortcut for writing: count = count + 1;
IBAction
alpha ... 0
count++;
To provide a convenient way of setting the button's title in the code


17. In the MVC design pattern for iOS apps - view consists of the various...

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18. Class used for image manipulations such as scaling - rotation and translation. Its data structure represents a matrix used for affine transformations.
CGAffineTransform
alpha ... 1
NSMutableArray
NSMutableString


19. A file folder in the navigator panel is called a ________
detail disclosure
debugger
Group
Single View Application


20. Expression to create a random number in [0 -20];
Hold down the Option key and point to the other label. The distance will be shown
image view
header
rand( )%21


21. The object currently in control and interacting with the user
NSString *userName;
variable
First Responder
||


22. Delimiter for a list of protocols
@synthesize directive
<>
scene
1024 x 768


23. Alternative selection mechanism when many conditions exist
Gray circle with a white 'X' in it - positioned to the right of the text field box
superclass
switch
XML


24. IDE for iPhone Development
segmented control
Command + Tab
Xcode
Cocoa is the development framework used for most native Mac OS X applications; Cocoa Touch is customized for a touch interface


25. If a method name includes a colon (:) this indicates a required _________
disclosure triangle
parameter
NSDate
Command+1


26. OOP
512MB
Object-oriented programming
scene
IBOutlet


27. In the UK - the '#' symbol is often called the ____ symbol
Control-click on the View Controller's icon to bring up a Connections dialog
hash
instance variable
Object-oriented programming


28. Syntax for single-line comment
512MB
//blah blah blah
<>
Command + Tab


29. How do you show a storyboard file as source code?

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30. Way to refer to an object within its own methods
'Software Development Kit'
Xcode
self
NSMutableString


31. Key sequence to run an app in Xcode
Command+R
'Interface Builder'
casting
Single View Application


32. Memory aid for keyboard shortcuts in the Navigator panel

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33. This element should 'always' accompany a slider to indicate its purpose
Collections
label
Object Library
variable


34. This keyword in the property directive is related to the concept of mutability and basically asks Apple to handle the details. This is the more 'relaxed' - less 'powerful' setting of two possibilities
IBAction
storyboard
UIImage *wp1 = [UIImage imageNamed:@'wallPaper_01.png'];
nonatomic


35. What event do you use to detect a button tap?
Cocoa Touch
png
Touch Up Inside
NSDate


36. Term used to describe each screen of an iPhone app
disclosure triangle
#import <UIKIT/UIKIT.h>
view
UILabel *myLabel = [[UILabel alloc] init];


37. Data type for highly precise numbers with huge numbers of decimal places
self
UILabel *myLabel = [[UILabel alloc] initWithString:@'GO!'];
Cocoa Touch
double


38. A fully transparent image has an _____ property value of _____
alpha ... 0
Cocoa is the development framework used for most native Mac OS X applications; Cocoa Touch is customized for a touch interface
Look at the three icons at the upper left portion of the Debug console. The far left one - 'Show only the Variables View' will not show the NSLog-ed information. Click the center icon ('Show the Variables View and the Console') or the right icon ('Sh
disclosure triangle


39. Apple's classes often provide a special initialization method called a _____ method
png
storyboards
view controller
convenience


40. Any 'directive' statement begins with this symbol
Application Programming Interface
IBAction)moveMe:(id)sender;
web view
@


41. Syntax for sending an object a message with one parameter (p1)
:
com.basicversity
for(<initialization>;<test condition>;<update instruction>){/*do this over and over*/}
[<object variable> <method name>: p1];


42. IDE
storyboard
YES
Integrated Development Environment
Snapshot feature


43. Denotes an instance method
-
NSDictionary
Collections
while(<boolean expression>){/*stuff to do here*/}


44. 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?
Option+Command+ 0
com.basicversity
switch
static


45. _____ are methods that we can connect to events.
storyboard
instantiation
UITextField
Actions


46. Implements a logical OR condition
||
[<object variable> <method name>];
int
Option+Command+ 0


47. Storage place for a piece of information specific to a class
conform
Seques .... relationships
@end
instance variable


48. strong and nonatomic are examples of ...
attributes
IBOutlet
Application Programming Interface
Determine how controls resize/reposition themselves when a device changes orientation


49. An array of background images called 'bgImages' has been declared as an instance variable in your header file. You have created a set of 5 background images stored in UIImage variables wp1 through wp5. Write a line of code that initializes the array.
@2x
Collections
bgImages = [[NSArray alloc] initWithObjects: wp1 - wp2 - wp3 - wp4 - wp5 - nil];
protocols


50. Used to test an app without needing an actual physical device
[<object variable> <method name>];
iOS Simulator
Seques .... relationships
id