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GeeksForGeeks IOS Developer Interview Questions and Answers

Updated 19 Mar 2024

GeeksForGeeks IOS Developer Interview Experiences

1 interview found

IOS Developer Interview Questions & Answers

user image Aritra Sinha

posted on 19 Mar 2024

Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. Protocols extension

IOS Developer Jobs at GeeksForGeeks

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Interview questions from similar companies

I applied via LinkedIn and was interviewed in Aug 2021. There was 1 interview round.

Interview Questionnaire 

4 Questions

  • Q1. App Thinning
  • Q2. KVO vs KVC difference
  • Ans. 

    KVO is used to observe changes in an object's properties, while KVC is used to access an object's properties using a key.

    • KVO stands for Key-Value Observing and is used to observe changes in an object's properties.

    • KVC stands for Key-Value Coding and is used to access an object's properties using a key.

    • KVO is useful for detecting changes in an object's properties and taking action based on those changes.

    • KVC is useful for...

  • Answered by AI
  • Q3. Operation Queue
  • Q4. Any and AnyObject

Interview Preparation Tips

Interview preparation tips for other job seekers - Questions are of intermediate Level.
Prepare well before interview.

Skills evaluated in this interview

I applied via LinkedIn and was interviewed in Jan 2022. There was 1 interview round.

Round 1 - Technical 

(1 Question)

  • Q1. Swift basic questions

Interview Preparation Tips

Interview preparation tips for other job seekers - Basic swift question and oops concepts, previous project overview.
Round 1 - Technical 

(3 Questions)

  • Q1. Basic of swift and some questions related to your past work experience.
  • Ans. 

    Questions about basic Swift knowledge and past work experience.

    • Basic Swift concepts such as optionals, closures, and protocols may be asked.

    • Questions about past projects and how you approached problem-solving may also be asked.

    • Examples of past work experience and projects may be requested.

    • Questions about Swift syntax and best practices may be asked as well.

  • Answered by AI
  • Q2. Clean coding principles
  • Ans. 

    Clean coding principles ensure code readability, maintainability, and scalability.

    • Use meaningful variable and function names

    • Keep functions short and focused

    • Avoid code duplication

    • Follow SOLID principles

    • Write unit tests

    • Refactor regularly

  • Answered by AI
  • Q3. They may ask your approaches to solve problems.

Interview Preparation Tips

Interview preparation tips for other job seekers - Be Confident about your answers and dont get lost.

I applied via Company Website and was interviewed in Jul 2020. There was 1 interview round.

Interview Questionnaire 

4 Questions

  • Q1. All basics of swift. Enums optionals closures protocols etc
  • Q2. Best feature you like of swift
  • Q3. App live all steps
  • Q4. Certificates information

Interview Preparation Tips

Interview preparation tips for other job seekers - They will ask you everything about swift
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. Objective C vs swift
  • Ans. 

    Objective-C is the older language used for iOS development, while Swift is the newer, more modern language.

    • Objective-C is a superset of C with Smalltalk-style messaging syntax.

    • Swift is more concise and easier to read than Objective-C.

    • Swift is safer due to its optionals and type interference features.

    • Objective-C has been around longer and has a larger codebase, but Swift is becoming more popular.

    • Many developers prefer S...

  • Answered by AI
  • Q2. Autolayouts and content

Skills evaluated in this interview

Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(5 Questions)

  • Q1. Encription and decription in swift
  • Ans. 

    Encryption and decryption in Swift involves using cryptographic algorithms to encode and decode data securely.

    • Use common encryption algorithms like AES or RSA for encryption.

    • Implement encryption using libraries like CommonCrypto or CryptoSwift.

    • Store encryption keys securely and use secure protocols for data transmission.

    • Example: Encrypting a string using AES encryption in Swift.

  • Answered by AI
  • Q2. Keychain access in swift
  • Ans. 

    Keychain access in Swift allows secure storage of sensitive information like passwords, tokens, etc.

    • Use Keychain Services API to securely store and retrieve sensitive data.

    • Keychain items are stored securely in the device's keychain and are encrypted.

    • Access keychain items using unique identifiers called keys.

    • Use Keychain Swift library for easier implementation.

  • Answered by AI
  • Q3. Class vs struct
  • Ans. 

    Classes are reference types, while structs are value types in Swift.

    • Classes are reference types, meaning they point to the same instance in memory when assigned to a new variable.

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

    • Use classes for complex data structures or when you need inheritance, use structs for simple data types or when you want value semantics.

    • Example: class Per...

  • Answered by AI
  • Q4. If let and guard let
  • Q5. Grand central dispatch in swift
  • Ans. 

    Grand Central Dispatch (GCD) is a technology in Swift for managing concurrent operations.

    • GCD allows developers to perform tasks concurrently without having to manage threads manually.

    • It provides a high-level API for managing tasks and executing them on different queues.

    • Developers can use GCD to perform tasks in the background, update the UI on the main thread, and more.

  • Answered by AI

Skills evaluated in this interview

Interview experience
2
Poor
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via LinkedIn and was interviewed before Aug 2023. There were 2 interview rounds.

Round 1 - Technical 

(2 Questions)

  • Q1. Basic Swift and Objective c
  • Q2. Deep into iOS Swift and Objective C
Round 2 - Technical 

(2 Questions)

  • Q1. Deep in Development and Coding test
  • Q2. Management related questions

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare well
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-

I applied via LinkedIn and was interviewed in Mar 2024. There was 1 interview round.

Round 1 - Technical 

(2 Questions)

  • Q1. App life cycle and app states?
  • Q2. Difference between MVVM and MVC
  • Ans. 

    MVVM focuses on separation of concerns by introducing a ViewModel layer, while MVC combines the responsibilities of the Model and Controller.

    • MVC stands for Model-View-Controller, where the Model represents the data, the View displays the data, and the Controller handles user input and updates the Model.

    • MVVM stands for Model-View-ViewModel, where the ViewModel acts as an intermediary between the View and the Model, hand...

  • Answered by AI

Skills evaluated in this interview

Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. SwiftUI related, Combine Related, Decodable, Actor, Testing Related
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GeeksForGeeks Interview FAQs

How many rounds are there in GeeksForGeeks IOS Developer interview?
GeeksForGeeks interview process usually has 1 rounds. The most common rounds in the GeeksForGeeks interview process are Technical.
How to prepare for GeeksForGeeks IOS Developer interview?
Go through your CV in detail and study all the technologies mentioned in your CV. Prepare at least two technologies or languages in depth if you are appearing for a technical interview at GeeksForGeeks. The most common topics and skills that interviewers at GeeksForGeeks expect are Swift, IOS, Net MVC, Swift Payments and Uikit.

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₹5 L/yr - ₹12.3 L/yr
10% more than the average IOS Developer Salary in India
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