Module Quiz: Project Functionality :iOS App Capstone (Meta iOS Developer Professional Certificate) Answers 2026

Question 1

Given the following code from server response, which struct would be needed to properly decode it into Swift format?

❌ struct JSONMenu:: Codable { ... }
✅ struct JSONMenu: Codable { let list: [FoodItem] }
❌ struct ListMenu: Codable { ... }

Explanation:
JSON me list array hai jisme name, price, aur description keys hain. Struct me exact key names match hone chahiye, isliye description hi sahi hai, dishDescription nahi.

Question 2

What operations does the following code perform?

✅ Creates dishes in the Dish entity with data from MenuItems.
❌ Deletes MenuItems that do not have corresponding Dish entities in the database.
❌ Creates new MenuItems from existing Dish entities.
❌ Deletes Dish entities that do not have corresponding MenuItems in the array.

Explanation:
Code loop me Dish objects create kar raha hai using MenuItem data.

Question 3

How can you use the NSPredicate class to correctly retrieve entries that contain the term “Café au Lait” while ignoring case and accents? (Select all)

✅ NSPredicate(format: “name CONTAINS[cd] %@”, “Café au Lait”)
✅ NSPredicate(format: “%K CONTAINS[cd] %@”, “name”, “CAFE AU LAIT”)
❌ NSPredicate(format: “name CONTAINS %@”, “Café au Lait”)
❌ NSPredicate(format: “name == %@”, “Café au Lait”)

Explanation:
[c] → case-insensitive
[d] → diacritic-insensitive (accent ignore)

Question 4

Which of the following code blocks is correct for fetching from a Dish entity without sorting or filtering?

✅ Option 1
❌ Option 2
❌ Option 3

Explanation:
sorDescriptors: [] + NSPredicate(value: true) means fetch everything without filter or sort.

Question 5

Please describe what the following code does:

✅ Initializes an NSSortDescriptor with key name, ascending order, and localized string comparison.
❌ Initializes descending order sort.
❌ Creates an NSManagedObject instance.

Explanation:
Code sirf sorting logic define karta hai, object create nahi karta.

Question 6

What is happening in this line of code?

❌ Case-insensitive predicate
❌ Case-sensitive predicate
✅ Case-insensitive & diacritic-insensitive predicate searching fullName for “Jane Doe”.

Explanation:
[d] → diacritics ignored
CONTAINS → substring match

Question 7

Which predicate format is correct?

✅ NSPredicate(format: "(%K < %@) AND (customerName CONTAINS[cd] %@)", "productPrice", price, partialName)
❌ %K missing key string
❌ Invalid placeholder usage

Explanation:
%K requires a key name as String, not a variable.

Question 8

How can you search for Dish objects with title containing specific text?

✅ NSPredicate(format: “title CONTAINS[cd] %@”, searchText)
❌ MATCHES (regex based)
❌ LIKE with wrong key
❌ Case-sensitive contains

Explanation:
Best practice: CONTAINS[cd] for user search.

Question 9

What is the role of NSManagedObjectContext in this code?

✅ To manage the creation and modification of Dish objects based on MenuItem objects.
❌ Manage MenuItem creation
❌ Convert Dish into MenuItem

Explanation:
NSManagedObjectContext Core Data ka main workspace hota hai.

Question 10

Which Core Data base class helps reduce boilerplate code?

❌ NSString.localizedCompare
❌ NSPredicate
✅ NSManagedObject
❌ NSSortDescriptor

Explanation:
NSManagedObject subclass se automatic Core Data handling milti hai.

🧾 Summary Table