iOS MCQ Questions & Answers - Mobile Development

iOS MCQs : This section focuses on "iOS" in Mobile Development. These Multiple Choice Questions (MCQ) should be practiced to improve the iOS skills required for various interviews (campus interviews, walk-in interviews, company interviews), placements, entrance exams and other competitive examinations.

1. Which of the following is Application development environments for iOS?

A. Cocoa
B. Cocoa touch
C. Cocoa iOS
D. Cocoa begin

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2. Cocoa touch used to refer the application development using any programmatic interface?

A. TRUE
B. FALSE
C. Can be true or false
D. Can not say

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3. Which JSON framework is supported by iOS?

A. UIKit
B. Django
C. SBJson
D. UCJson

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4. ___________ is a two-part string used to identify one or more apps from a single development team.

A. bundle ID
B. app ID
C. team ID
D. All of the above

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5. How many ways to achieve concurrency in iOS?

A. 1
B. 2
C. 3
D. 4

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6. When an app is said to be in not running state?

A. When it is launched
B. When it is not launched
C. When it gets terminated by the system during running
D. Both B and C

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7. In Which state the app is running in the foreground and is receiving events?

A. Not running
B. Inactive
C. Background
D. Active

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8. UIKit classes should be used only from an application’s main thread.

A. TRUE
B. FALSE
C. Can be true or false
D. Can not say

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9. How many parts of NSError object?

A. 1
B. 2
C. 3
D. 4

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10. ARC stands for?

A. Auto Reference Counting
B. Automatic Reference Counting
C. Automatic Reference Cloud
D. Automatic Reference Cocoa

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