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Wipro IOS Developer Interview Questions, Process, and Tips
Top Wipro IOS Developer Interview Questions and Answers
- Q1. encription and decription in swift
- Q2. grand central dispatch in swift
- Q3. keychain access in swift
Wipro IOS Developer Interview Experiences
4 interviews found
Anonymous
(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.
- 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.
- 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...
- 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.
Skills evaluated in this interview
(1 Question)
- Q1. Singletone, multithreading, oops
Interview Preparation Tips
Selected
I applied via LinkedIn and was interviewed before Aug 2023. There were 2 interview rounds.
(2 Questions)
- Q1. Basic Swift and Objective c
- Q2. Deep into iOS Swift and Objective C
(2 Questions)
- Q1. Deep in Development and Coding test
- Q2. Management related questions
Interview Preparation Tips
What people are saying about Wipro
Selected
I applied via Campus Placement and was interviewed before Apr 2023. There were 2 interview rounds.
90mins of aptitude test after clearing interview
1hr of coding test then final interview
Wipro interview questions for designations
Interview questions from similar companies
Selected
I applied via LinkedIn and was interviewed in Mar 2024. There was 1 interview round.
(6 Questions)
- Q1. What is Weak & Unowned , ARC?
- Ans.
Weak & Unowned references are used in ARC to prevent retain cycles in Swift programming.
Weak references do not increase the retain count of an object, and automatically become nil when the object is deallocated.
Unowned references do not keep a strong reference to the object, and can become a dangling pointer if the object is deallocated.
ARC (Automatic Reference Counting) is a memory management system used in Swift to a
- Q2. What is Autoclosure?
- Ans.
Autoclosure is a feature in Swift that automatically wraps an expression in a closure.
Autoclosure is used to delay evaluation of an expression until it is actually needed.
It is commonly used with functions that take closures as arguments, allowing the caller to pass in a regular value instead of a closure.
Autoclosures are created by adding @autoclosure attribute before the closure's parameter type.
- Q3. Code snippets for optional binding, find error ?
- Ans.
Optional binding in Swift helps to safely unwrap optionals and check for nil values.
Use if let or guard let to safely unwrap optionals and bind the value to a new constant or variable.
Check for nil values before using the unwrapped value to avoid runtime errors.
Example: if let name = optionalName { print(name) }
Example: guard let age = optionalAge else { return }
- Q4. What are Access Controls/modifiers? public vs open?
- Ans.
Access controls/modifiers determine the visibility and accessibility of classes, methods, and properties in object-oriented programming.
public access control allows a class, method, or property to be accessed from anywhere in the code
open access control allows a class to be subclassed outside of the module where it is defined
public is commonly used in Swift for most cases, while open is used when you want to allow subc
- Q5. Protocol vs Closures?
- Ans.
Protocols define a blueprint of methods, properties, and other requirements that a class or struct must adopt. Closures are self-contained blocks of functionality that can be passed around and used in your code.
Protocols define a set of methods, properties, and other requirements that a class or struct must implement.
Closures are self-contained blocks of functionality that can capture and store references to any consta...
- Q6. How you use GIT, How to manage conflicts?
- Ans.
I use GIT for version control and manage conflicts by resolving them through communication and collaboration.
Regularly commit changes to keep track of progress
Pull latest changes before making any updates to avoid conflicts
Communicate with team members to resolve conflicts efficiently
Use tools like Git merge or Git rebase to resolve conflicts
Document resolution process for future reference
Interview Preparation Tips
Skills evaluated in this interview
Easy aptitude english and logical reasoning.
(2 Questions)
- Q1. Tell me About yourself
- Q2. Swift advantages and disadvantages
- Ans.
Swift is a powerful and modern programming language for iOS development, but it has its own set of advantages and disadvantages.
Advantages: faster performance, safer code with optionals, easier to read and write code, interoperability with Objective-C
Disadvantages: steep learning curve for beginners, limited community support compared to other languages like Java or Python
(1 Question)
- Q1. Salary expectation and current salary
Skills evaluated in this interview
(2 Questions)
- Q1. Auto closures and Escaping closures
- Q2. Cardinality and string reverse coding
Selected
I applied via Recruitment Consulltant and was interviewed in Mar 2024. There was 1 interview round.
(2 Questions)
- Q1. What is closure? Life cycle of escaping closure?
- Ans.
A closure is a self-contained block of code that can be passed around and used in your code. An escaping closure is a closure that is called after the function it was passed to has returned.
Closure is a block of code that can be passed around and used in your code.
Escaping closure is called after the function it was passed to has returned.
Example: Using a completion handler in a network request to handle the response a
- Q2. What is multi threading?
- Ans.
Multi threading is the ability of a CPU to execute multiple threads concurrently, allowing for improved performance and responsiveness in applications.
Allows for parallel execution of tasks, improving performance
Enables applications to remain responsive while performing intensive tasks
Can lead to synchronization issues if not managed properly
Interview Preparation Tips
- Closure
- IOS
- Design Patterns
- Multithreading
Skills evaluated in this interview
naidu yatham
(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...
- Q2. Automstic referenc counting
(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...
- Q2. Model view viewmodel
Skills evaluated in this interview
I applied via LinkedIn and was interviewed in Mar 2024. There was 1 interview round.
(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...
Skills evaluated in this interview
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Wipro IOS Developer Interview Process
based on 4 interviews
1 Interview rounds
- Technical Round
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Wipro IOS Developer Reviews and Ratings
based on 5 reviews
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