Ios Swift MCQ Quiz

Take IOS Swift Quiz To test your Knowledge 

Below are few IOS Swift MCQ test that checks your basic knowledge of IOS Swift. This IOS Swift Test contains around 20 questions of multiple choice with 4 options. You have to select the right answer to a question. You can see the correct answer by clicking view answer link.

Also, Read Best Swift interview questions.

1. IOS Stands For ?

  • Internetwork Operating System
  • IPhone Operating System
  • Internet Operating System
  • None Of Them
View Answer

2. The IDE Used In Swift Is

  • Swiftc
  • Gas
  • Xcode
  • Ld

3. To Create Mutable Object __ Is Used

  • Let
  • Var
  • Both A&B
  • None

4. Which Of The Following IOS Frameworks Is A Commonly Used Third Party Library?

  • AVFoundation.framework
  • Audiotoolbox.framework
  • AFNetwork.framework
  • Audiotoolbox.framework
View Answer

5. To Create Contants In Swift We Use Keyword ...

  • Conts
  • Let
  • Contants
  • None Of Above

6. Double Has A Precision Of At Least _ Decimal Digits In Swift.

  • 15
  • 20
  • 17
  • None Of These

7. First IOS Was Written In

  • 1984
  • 1985
  • 1986
  • 1987

8. We Can Return Multiple Values In Swift From Function By Using?

  • Array
  • Tuple
  • Both A&B
  • None

9. Which Of The Following Is Incorrect Data Type In SWIFT ?

  • UInt
  • Double
  • Char
  • Optional

10. If You Do Not Want To Mention External Name In Function Call, Then What Should Be Preceded Before The Parameters While Defining The Function?

  • ?
  • !
  • _
  • \

11. The Most Recent Version Of MacOS Is Based On ... ?

  • WINDOWS
  • LINUX
  • UNIX
  • CMOS

12. To Initialize Variable With Null Require...

  • ?
  • !
  • _
  • NULL

13. Meaning Of IOS Is?

  • SystemIntergrated Open System
  • Integrated Operating
  • Internetworking Operating System
  • None Of Above
View Answer

14. What Is A LLVM ?

  • Swiftc Compiler
  • Contains Both Compiler (swiftc And Objective C)
  • Objective C Compiler
  • None Of The Above
View Answer

15. Which Of The Following Is Incorrect Value Type Of The Swift?

  • Double
  • Character
  • Enum
  • Class

16. For Unwrapping Value Inside Optional What Should We Use?

  • ?
  • @
  • !
  • None Of These

17. What Was The Original Name Of IOS?

  • IPhone OS
  • IOS Is Original Name
  • IPad OS
  • IPod OS
View Answer

18. Multitasking In IOS Was Introduced In Which Version?

  • IOS 2.0
  • IOS 4.0
  • IOS 6.0
  • IOS 7.0
View Answer

19. IOS Is A __software.

  • Proprietary
  • Free And Open Source
  • None Of These
View Answer

20. Which Of The Following Framework Is Not Used In IOS ?

  • UIKit Framework
  • AppKit Framework
  • Foundation Framework
  • CoreMotion Framework
View Answer

21. Which Of The Following Declares A Mutable Array In Swift?

  • Let X =[Int]()
  • Var X=[Int]
  • Var X=[Int]()
  • Let X=[Int]
View Answer

22. Application Running In Foreground But Currently Not Receiving Any Events .what Is The Current State Of Application?

  • Background State
  • Inactive State
  • Suspended State
  • Active State
View Answer

23. What Is Bundle In IOS

  • It Is A Class
  • It Is Used To Send Data
  • It Is Folder With .app Extension
  • None Of Above
View Answer

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