Applaunch IOS Developer Interview Questions and Answers

General, logical, current technologies

Q1. Tell me about yourselves coding related questions logical questions
Add your answer

Q1. Why would you like to join company why do you think we should hire you
Add your answer

Q1. Swift basic questions like quard if let optionals
Add your answer

Q1. Asked about leadership quality
Add your answer

Q1. 1. Lazy property, stored properties, closures, API calls,delegates, protocol
Add your answer

Q1. Difference between retain, copy and strong?
Ans. 
Retain, copy, and strong are all memory management keywords in Objective-C used to manage object ownership.
• Retain: Increases the retain count of an object, ensuring it is not deallocated as long as there are references to it.

• Copy: Creates a new copy of an object, ensuring that changes to the original object do not affect the copied object.

• Strong: Similar to retain, it increases the retain count of an object and ensures...read more
Answered by AI
Add your answer
Q2. Difference between class and struct?
Ans. 
Classes are reference types, while structs are value types in Swift.
• Classes are reference types, meaning they point to the same memory location when assigned to a new variable.

• Structs are value types, meaning they create a new copy when assigned to a new variable.

• Classes support inheritance, while structs do not.

• Classes can have deinitializers, while structs cannot.

• Example: class Person {} vs struct Point {}
Answered by AI
Add your answer
Q3. Solid principles
Add your answer

Q1. What is Protocol Oriented Programming
Ans. 
Protocol Oriented Programming is a programming paradigm in Swift that focuses on defining protocols to define behavior.
• POP is a way of designing code by defining protocols that describe a set of behaviors.

• It encourages composition over inheritance, allowing for more flexible and reusable code.

• By using protocols, you can define a blueprint of methods and properties that a type must implement.
Answered by AI
Add your answer
Q2. What is Concurrency
Ans. 
Concurrency is the ability of a system to execute multiple tasks simultaneously.
• Concurrency allows multiple tasks to run at the same time, improving performance and responsiveness.

• It can be achieved through techniques like multithreading and asynchronous programming.

• Concurrency is important in iOS development for tasks like networking, data processing, and UI updates.
Answered by AI
Add your answer
Q3. What are types of memory management in iOS
Ans. 
Types of memory management in iOS include Automatic Reference Counting (ARC) and Manual Reference Counting (MRC).
• Automatic Reference Counting (ARC) - manages memory automatically by keeping track of object references.

• Manual Reference Counting (MRC) - requires developers to manually manage memory by retaining and releasing objects.

• ARC is the default memory management system in iOS, while MRC is used in older codebases o...read more
Answered by AI
Add your answer

Fetch data from API and showcase it onto a table view in swift

Quite good bother some skills

Q1. Strong communication skills required
Add your answer

Python programming language along with the c++

Q1. Basic iOS questions , Closures,Protocol,Optional,Auto layouts.
Add your answer

Q1. What is difference between class and struct?
Ans. 
Classes are reference types, while structs are value types in Swift.
• Classes are reference types, meaning they are passed by reference, while structs are value types, passed by value.

• Classes support inheritance, while structs do not.

• Classes have deinitializers, while structs do not.

• Classes can have reference counting for memory management, while structs do not.

• Example: class Person {} vs struct Point {}
Answered by AI
Add your answer
Q2. What are optional?
Ans. 
Optionals are a feature in Swift that allow variables to have a value or be nil.
• Optionals are used to handle situations where a value may be missing.

• They are denoted by adding a '?' after the type declaration.

• Optionals must be unwrapped before their value can be used.

• Example: var name: String? = "John"

• Example: var age: Int? = nil
Answered by AI
Add your answer