Objective Questions in >= Swift2.2 @iPhone - Set G

Q.61:  What will be the output

           let bits: UInt8 = 4  

           let output = bits << 2            

           print(output)

A.      2

B.      4

C.      8

D.      16

Q.62: What will be the output

          let bits: UInt8 = 4  

          let output = bits << 5            

          print(output)

A.      128

B.      4

C.      8

D.      16

Q.63: What will be the output

          let bits: UInt8 = 4  

          let output = bits << 6         

          print(output)

A.      128

B.      0

C.      8

D.      16

Q.64: What will be the output

          let bits: UInt8 = 4  

          let output = bits >> 2            

          print(output)

A.      2

B.      4

C.      8

D.      1

Q.65: What is UIKit in iPhone App development

                A. Framework

                B. Class

                C. Object

                D. None of the above

Q.66: What does UIKit in iPhone App Development

                A. It defines classes

                B. It defines Labels , Buttons

                C. It defines functions

                D. All of the above

Q.67: What are the responsibilities of               

          UIViewController class

A. Updating the contents of the views

B. Responding to user interactions with views.

C. Resizing views and managing the layout 

    of the overall interface.

D. All the above

Q.68: When amount of available memory is low, 

          Which method is called by app

A.   viewDidLoad()

B.   didReceiveMemoryWarning()

C.  Both

D.  None

Q.69: Which method is invoked after  the         

         controller's view is loaded into memory.

A.  viewDidLoad()

B.  didReceiveMemoryWarning()

C.  Both

D.  None

 Q.70: Which method can be override when you 

          want  to release memory

A.   viewDidLoad()

B.   didReceiveMemoryWarning()

C.  Both

D.  None

Answers : D    A     B     D     A     D     D      B     A   B