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Hidden Brains InfoTech IOS Developer Interview Questions and Answers

Updated 10 Jul 2024

Hidden Brains InfoTech IOS Developer Interview Experiences

1 interview found

IOS Developer Interview Questions & Answers

user image Anonymous

posted on 10 Jul 2024

Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - One-on-one 

(2 Questions)

  • Q1. Basic of swift programming
  • Q2. Third party integration

Interview questions from similar companies

IOS Developer Interview Questions & Answers

Mphasis user image Khushbu Kushwah

posted on 1 Jul 2024

Interview experience
2
Poor
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. Some basic Questions related to iOS concepts.
  • Q2. Multithreading and multitasking.
Round 2 - Technical 

(2 Questions)

  • Q1. Advanced iOS Questions.
  • Q2. API Calling, Json Parsing

Interview Preparation Tips

Interview preparation tips for other job seekers - Learn Basic Concepts first.
Interview experience
1
Bad
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. Arc in swift...
  • Ans. 

    ARC (Automatic Reference Counting) in Swift is a memory management system used to automatically manage memory allocation and deallocation.

    • ARC keeps track of how many references there are to an object and automatically deallocates it when there are no more references.

    • Use strong reference cycles can lead to memory leaks, so use weak or unowned references to break the cycle.

    • ARC is the default memory management system in S...

  • Answered by AI
  • Q2. Automstic referenc counting
Round 2 - Technical 

(2 Questions)

  • Q1. Mvvm in swift....
  • Ans. 

    MVVM (Model-View-ViewModel) is an architectural design pattern commonly used in iOS development to separate concerns and improve code maintainability.

    • MVVM separates the user interface (View) from the business logic (ViewModel) and data (Model).

    • ViewModel acts as an intermediary between the View and the Model, handling user interactions and updating the data.

    • Swift provides tools like Combine framework for reactive progra...

  • Answered by AI
  • Q2. Model view viewmodel

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
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Naukri.com and was interviewed before Oct 2023. There was 1 interview round.

Round 1 - Technical 

(2 Questions)

  • Q1. How do you manage local data?
  • Ans. 

    Local data is managed using Core Data framework in iOS development.

    • Use Core Data framework to create, read, update, and delete local data.

    • Utilize entities, attributes, and relationships to model the data.

    • Implement fetch requests to retrieve data based on specific criteria.

    • Use NSManagedObject subclasses to represent data objects.

    • Utilize NSPersistentContainer to manage the Core Data stack.

  • Answered by AI
  • Q2. How can you create dynamic UI like amazon?
  • Ans. 

    Dynamic UI like Amazon can be created using a combination of responsive design, data-driven content, and user personalization.

    • Utilize responsive design principles to ensure the UI adapts to different screen sizes and devices.

    • Implement data-driven content to display relevant information based on user preferences and behavior.

    • Use user personalization techniques such as recommendations, personalized product suggestions, a...

  • Answered by AI

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
Not Selected

I applied via Naukri.com and was interviewed in Apr 2024. There were 3 interview rounds.

Round 1 - Technical 

(2 Questions)

  • Q1. Basic interview swift questions (medium to hard)
  • Q2. Coding to find correct or whats wrong
Round 2 - Coding Test 

Machine test with collection view and api using url session

Round 3 - One-on-one 

(1 Question)

  • Q1. Technical questions of different scenarios
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 Questionnaire 

2 Questions

  • Q1. Struct vs Class
  • Ans. 

    Struct is value type while Class is reference type in Swift. Structs are passed by value while Classes are passed by reference.

    • Structs are ideal for small data types like coordinates, colors, etc.

    • Classes are ideal for larger data types like view controllers, network managers, etc.

    • Structs are immutable by default while Classes are mutable.

    • Structs cannot inherit from other types while Classes can.

    • Structs are stack alloca

  • Answered by AI
  • Q2. MultiThreading Related Questions

Interview Preparation Tips

Interview preparation tips for other job seekers - Strong basic knowledge required

Skills evaluated in this interview

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
No response

I applied via Walk-in and was interviewed before Sep 2023. There were 2 interview rounds.

Round 1 - Technical 

(14 Questions)

  • Q1. What is serialisation in API
  • Ans. 

    Serialisation in API is the process of converting data into a format that can be easily transmitted over a network.

    • Serialisation is used to convert complex data structures into a format that can be easily transmitted over a network.

    • It involves converting objects or data structures into a stream of bytes that can be sent over a network.

    • JSON and XML are commonly used formats for serialising data in APIs.

    • Serialisation is ...

  • Answered by AI
  • Q2. What is codable
  • Ans. 

    Codable is a protocol in Swift that allows for easy encoding and decoding of data types to and from external representations.

    • Codable protocol is used to convert custom data types to and from external representations such as JSON, plist, etc.

    • It requires the types to conform to Encodable and Decodable protocols.

    • Codable protocol provides default implementations for encoding and decoding.

    • Example: struct Person: Codable { v...

  • Answered by AI
  • Q3. What is MVVM architecture
  • Ans. 

    MVVM is an architectural design pattern that separates the user interface code from the business logic and data model.

    • MVVM stands for Model-View-ViewModel

    • Model represents the data and business logic

    • View displays the UI elements and interacts with the user

    • ViewModel acts as a mediator between the Model and View, handling user inputs and updating the Model

    • MVVM helps in achieving separation of concerns and making the code

  • Answered by AI
  • Q4. Solid principles
  • Q5. Coredata stack questions
  • Q6. Swift Optional related
  • Q7. About GCD, Concurrency
  • Q8. Dependency injection and inversion
  • Q9. About singleton, is it thread safe ?
  • Q10. Guard let, if let difference
  • Q11. Failable initialisers
  • Q12. Class struct difference
  • 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.

    • Classes support inheritance, while structs do not.

    • Classes can have deinitializers, while structs cannot.

    • Example: class Person { var name: String } vs struc

  • Answered by AI
  • Q13. About protocols, associated type, delegate examples
  • Q14. About identifiable protocol
Round 2 - HR 

(1 Question)

  • Q1. When you can join
  • Ans. 

    I can join within 2 weeks of receiving an offer.

    • I can start within 2 weeks of receiving an offer

    • I need to give notice at my current job before starting

    • I have some personal commitments that I need to wrap up before joining

  • Answered by AI

Skills evaluated in this interview

Hidden Brains InfoTech Interview FAQs

How many rounds are there in Hidden Brains InfoTech IOS Developer interview?
Hidden Brains InfoTech interview process usually has 1 rounds. The most common rounds in the Hidden Brains InfoTech interview process are One-on-one Round.
How to prepare for Hidden Brains InfoTech 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 Hidden Brains InfoTech. The most common topics and skills that interviewers at Hidden Brains InfoTech expect are Swift, IOS, Cocoa Touch, OOPS and Objective C.
What are the top questions asked in Hidden Brains InfoTech IOS Developer interview?

Some of the top questions asked at the Hidden Brains InfoTech IOS Developer interview -

  1. Third party integrat...read more
  2. Basic of swift programm...read more

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Hidden Brains InfoTech IOS Developer Interview Process

based on 1 interview

Interview experience

5
  
Excellent
View more
Hidden Brains InfoTech IOS Developer Salary
based on 11 salaries
₹2.6 L/yr - ₹4 L/yr
50% less than the average IOS Developer Salary in India
View more details

Hidden Brains InfoTech IOS Developer Reviews and Ratings

based on 3 reviews

3.6/5

Rating in categories

3.1

Skill development

3.6

Work-life balance

4.1

Salary

3.1

Job security

3.6

Company culture

3.6

Promotions

3.1

Work satisfaction

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