Thursday 3 September 2015

iPhone Apps Objective type Questions and Answers

11) Which company did Apple team up with to provide their iPhone/iPad Map software offering?
A. Microsoft
B. Google
C. Yahoo
D. MapQuest
Ans: B

12) iPhone applications can be ___________ on a MacBook Pro:
A. Developed and debugged
B. Debugged
C. Developed
D. Developed or debugged
Ans: A

13) Besides being based on C, the Objective-C language was derived from a language called __?
A. Cocoa
B. SmallTalk-80
C. C
D. Xcode
Ans: B

14) Apple has provided a powerful ___ (SDK) that allows for rapid iPhone/iPad application development.
A. Software Development Kit
B. Standard Development Kit
C. Standard Debugging Kit
D. Software Debugging Kit
Ans: A

15) The iPhone OS is a version of:
A. MS-DOS
B. Linux
C. Mac OS X
D. Windows Mobile 5
Ans: C

16) Which one is NOT a development tool for iPhone/iPad applications?
A. The iPhone Simulator
B. Xcode
C. Interface Builder
D. SmallTalk-80
Ans: D

17) OOP stands for?
A. Object Owned Programming
B. Object Ordered Programming
C. Object Oriented Programming
Ans: C

18) Which is the latest version of the iPhone OS that is just released? 
A. Version 2.5
B. Version 5.0
C. Version 3.1
D. Version 6.0
Ans: D

19) Object Oriented Programming (OOP) is a style of programming in which your code is broken up into units, known as  
A. Objects
B. Classes
C. Objects or classes
D. Objects and classes
Ans: D

20) Keeping track of objects you own and releasing them when you're done using them
A. Is a dumb idea and a big waste of my time
B. Is not a part of a good programming practice
C. Is necessary on the iPhone since it does not support garbage collection
D. None of the above
Ans: C

21) At the start of program execution all subclasses are initialized before the parent class  
A. True
B. False
Ans: B

22) The @private directive restricts access to instance variables to methods in the class; subclasses cannot access the variables directly
A. True
B. False
Ans: A

23) If you start a class definition that conforms to a specified protocol, you need to release all the methods you will implement for that protocol in the @interface section.
A. True
B. False
Ans: B

24) int, float, and char are reserved words and examples of Objective-C basic objects.
A. True
B. False
Ans: B

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