Memory_Management.md

Swift Memory Management Interview Questions (Beginner to Advanced)

Beginner Level

1. What is ARC (Automatic Reference Counting) in Swift?
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2. How does ARC manage memory in Swift?
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3. What are strong references?
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4. What is a weak reference in Swift, and when should you use it?
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5. What is an unowned reference?
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6. What is a retain cycle, and how can you prevent it?
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7. How does ARC differ from garbage collection?
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8. What is a memory leak, and how do you detect it in Swift?
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9. How do closures cause memory leaks?
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10. What is the difference between weak and unowned in Swift?
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Intermediate Level

1. How do you break a strong reference cycle in closures?
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2. What is a memory profiler, and how do you use it in Xcode?
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3. How do value types manage memory compared to reference types?
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4. How does Swift handle reference counting in multi-threaded environments?
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5. What is the deinit method, and when is it called?
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6. How does lazy initialization affect memory management?
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7. How do strong, weak, and unowned references work in ARC?
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8. How do you prevent retain cycles in delegates?
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9. What is copy-on-write, and how does it work with memory management?
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10. How does memory management impact performance in Swift?
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Advanced Level

1. How do you detect memory leaks using Instruments in Xcode?
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2. How can you debug retain cycles in complex Swift codebases?
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3. How does Swift optimize memory with structures and copy-on-write?
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4. How do you handle circular references in data structures?
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5. What is the impact of memory regions on ARC performance?
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6. How does Swift optimize memory for large collections?
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7. What is the weak-strong dance in memory management?
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8. How do you manage memory when working with Core Data?
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9. What is autorelease in Swift, and when is it used?
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10. How does ARC interact with GCD (Grand Central Dispatch)?
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