{"id":23,"date":"2025-01-29T19:32:32","date_gmt":"2025-01-29T19:32:32","guid":{"rendered":"https:\/\/chanchalgeek.com\/code.chanchalgeek.com\/?p=23"},"modified":"2025-05-15T11:28:51","modified_gmt":"2025-05-15T11:28:51","slug":"senior-ios-developer-interview-questions","status":"publish","type":"post","link":"https:\/\/chanchalgeek.com\/code.chanchalgeek.com\/index.php\/2025\/01\/29\/senior-ios-developer-interview-questions\/","title":{"rendered":"Senior iOS Developer Interview Questions"},"content":{"rendered":"\n
    \n
  1. What is difference between value type and reference type?<\/li>\n\n\n\n
  2. What is difference between class and structure in Swift?<\/li>\n\n\n\n
  3. What is autorelease pool?<\/li>\n\n\n\n
  4. What is runloop?<\/li>\n\n\n\n
  5. What is NSManagedObject?<\/li>\n\n\n\n
  6. What is NSManagedObjectContext?<\/li>\n\n\n\n
  7. Explain @published macro.<\/li>\n\n\n\n
  8. What is ObserveableObject?<\/li>\n\n\n\n
  9. What is dynamic dispatch?<\/li>\n\n\n\n
  10. Difference between static and dynamic framework.<\/li>\n\n\n\n
  11. What is MVC?<\/li>\n\n\n\n
  12. What is Thread Sanitizer?<\/li>\n\n\n\n
  13. What are different ways of implementing concurrency in iOS?<\/li>\n\n\n\n
  14. What is publisher in Combine?<\/li>\n\n\n\n
  15. What is subscriber in Combine?<\/li>\n\n\n\n
  16. What are different types of publishers?<\/li>\n\n\n\n
  17. What are different methods of publishers?<\/li>\n\n\n\n
  18. What are difference between global queue and …. ?<\/li>\n\n\n\n
  19. How to see what dynamic frameworks an executable depends on?<\/li>\n\n\n\n
  20. How to see whether a framework is ’embedded’ or not while adding it as dependency?<\/li>\n\n\n\n
  21. What is dynamic loader\/linker?<\/li>\n\n\n\n
  22. What is static linker?<\/li>\n\n\n\n
  23. What is a view modifier?<\/li>\n\n\n\n
  24. What is a geometry reader?<\/li>\n\n\n\n
  25. What is Autolayout?<\/li>\n\n\n\n
  26. What is size class and what are types of size classes there are?<\/li>\n\n\n\n
  27. Can we have multiple contexts while using single core data database?<\/li>\n\n\n\n
  28. What is copy-on-write?<\/li>\n\n\n\n
  29. Explain Codable.<\/li>\n\n\n\n
  30. Explain Sendable.<\/li>\n\n\n\n
  31. Explain Equatable.<\/li>\n\n\n\n
  32. What is CustomStringConvertible used for?<\/li>\n\n\n\n
  33. How can we make a singleton type safe?<\/li>\n\n\n\n
  34. What is Actor in Swift?<\/li>\n\n\n\n
  35. Explain usage of async and await.<\/li>\n\n\n\n
  36. What is a retain cycle?<\/li>\n\n\n\n
  37. How to detect retain cycle?<\/li>\n\n\n\n
  38. What is on-demand resources in XCode? https:\/\/www.youtube.com\/watch?v=BcTir13_SNA&t=333s<\/a><\/li>\n\n\n\n
  39. What is OSLog?<\/li>\n\n\n\n
  40. Where do you save API Keys in app?<\/li>\n\n\n\n
  41. Can you explain factory pattern with an example?<\/li>\n\n\n\n
  42. Can you explain adapter pattern with an example?<\/li>\n\n\n\n
  43. Can you explain iterator pattern with an example?<\/li>\n\n\n\n
  44. Demonstrate usage of Sequence protocol.<\/li>\n\n\n\n
  45. Demonstrate usage of Hashable Protocol.<\/li>\n\n\n\n
  46. How to avoid users to take screenshots of any particular screen in iOS?<\/li>\n\n\n\n
  47. What is URLSession? https:\/\/elamir.medium.com\/mastering-urlsession-in-swift-a-comprehensive-guide-d3a3aa740f6e<\/a><\/li>\n\n\n\n
  48. How does Prefetching CollectionView DataSource works?<\/li>\n\n\n\n
  49. What is keyset Paging approach to handle pagination?<\/li>\n\n\n\n
  50. What is LocalizedStringResource used for and any particular reason to use it in AppIntents?<\/li>\n\n\n\n
  51. What is Address Sanitizer and Thread Sanitizer?<\/li>\n\n\n\n
  52. What is @namespace property wrapper in SwiftUI?<\/li>\n<\/ol>\n\n\n\n

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