Bird
0
0

Swift is known for being fast and safe. Which feature helps Swift avoid common programming errors?

hard📝 Application Q15 of 15
Swift - Basics and Runtime
Swift is known for being fast and safe. Which feature helps Swift avoid common programming errors?
AIgnoring type safety for speed
BUsing only global variables
CAutomatic memory management with ARC
DNo error checking during compilation
Step-by-Step Solution
Solution:

  1. Step 1: Understand Swift safety features

    Swift uses Automatic Reference Counting (ARC) to manage memory safely without manual work.

  2. Step 2: Evaluate options

    Only Automatic memory management with ARC describes a real Swift feature that improves safety and speed.

  3. Final Answer:

    Automatic memory management with ARC -> Option C

  4. Quick Check:

    ARC manages memory safely and efficiently [OK]
Quick Trick: ARC helps Swift manage memory safely and fast [OK]
Common Mistakes:
  • Thinking global variables improve safety
  • Believing ignoring type safety is good
  • Assuming no error checking is safe

Want More Practice?

15+ quiz questions · All difficulty levels · Free

Free Signup - Practice All Questions
More Swift Quizzes
Collections - Why collections are value types in Swift - Quiz 9hard Collections - Dictionary creation and access - Quiz 15hard Control Flow - No implicit fallthrough in switch - Quiz 10hard Control Flow - No implicit fallthrough in switch - Quiz 5medium Data Types - Character and String types - Quiz 15hard Data Types - Int, Double, Float number types - Quiz 6medium Functions - Why functions are first-class in Swift - Quiz 6medium Optionals - Multiple optional binding - Quiz 7medium Swift Basics and Runtime - Project structure and Swift Package Manager basics - Quiz 5medium Swift Basics and Runtime - Swift REPL and Playgrounds - Quiz 11easy