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NTT Data Information Processing Services IOS Team Lead Interview Questions, Process, and Tips
NTT Data Information Processing Services IOS Team Lead Interview Experiences
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I applied via Naukri.com and was interviewed in Jan 2024. There was 1 interview round.
(4 Questions)
- Q1. What is Protocol in swift?
- Ans.
Protocols in Swift define a blueprint of methods, properties, and other requirements that a class, struct, or enum must adopt.
Protocols are used to define a set of rules or capabilities that a type must conform to.
They allow for code reuse and provide a way to define common behavior across different types.
A type can adopt multiple protocols, enabling it to conform to multiple sets of rules.
Protocols can require propert...
- Q2. What is Dependency Injection.?
- Ans.
Dependency Injection is a design pattern where the dependencies of an object are provided externally rather than being created internally.
Dependency Injection helps in achieving loose coupling between classes.
It allows for easier testing and maintenance of code.
There are three types of Dependency Injection: Constructor Injection, Setter Injection, and Interface Injection.
Example: In iOS development, we can use Dependen...
- Q3. What is Generics in swift.?
- Ans.
Generics in Swift allow you to write flexible and reusable code by creating functions, classes, and structures that can work with any type.
Generics enable you to write code that can be used with different types, without duplicating code.
You can define generic functions, types, and protocols to work with a wide range of types.
Generics are particularly useful when working with collections, such as arrays and dictionaries...
- Q4. What is Associate types ?
- Ans.
Associate types are a way to create a relationship between two types in Swift.
Associate types are defined using the 'associatedtype' keyword.
They are used in protocols to define a placeholder type that will be specified by the conforming type.
The conforming type can provide its own concrete type for the associated type.
This allows protocols to be more flexible and reusable.
For example, a protocol for a container type c...
Interview Preparation Tips
Skills evaluated in this interview
Top trending discussions
Interview questions from similar companies
I applied via LinkedIn and was interviewed in Sep 2024. There were 3 interview rounds.
Basic interview on question like aptitude, javascript, typescript and react-native question
(5 Questions)
- Q1. Basic javascript question in second round
- Q2. What is function currying
- Ans.
Function currying is a technique in functional programming where a function with multiple arguments is transformed into a sequence of nested functions, each taking a single argument.
Currying allows you to partially apply a function by fixing a number of arguments, which creates a new function.
It helps in creating reusable functions and improves code readability.
Example: const add = (a) => (b) => a + b; const add5 = add
- Q3. What is IIEF where we can use it
- Ans.
IIFE stands for Immediately Invoked Function Expression, used for creating a function that is executed immediately after it is defined.
IIFE is used to create a private scope for variables to avoid polluting the global scope.
It is commonly used in React Native development to encapsulate code and prevent naming conflicts.
Example: (function() { console.log('IIFE executed'); })();
- Q4. Deeply they ask me closure related question how it's working
- Q5. How call call stack and event loop is working
- Ans.
Call stack is used to keep track of function calls, while event loop manages asynchronous operations in JavaScript.
Call stack is a data structure that keeps track of function calls in a program.
When a function is called, it is added to the top of the call stack. When the function completes, it is removed from the stack.
Event loop is responsible for managing asynchronous operations in JavaScript, ensuring that they are ...
(1 Question)
- Q1. Project related discussion only
Interview Preparation Tips
My first round of interview is going and in second round they ask me more technical and deep technical questions that was also very good.
In third round of interview the interviewer ask me only project related question. I try to explain that but he did't give me to chance to say some think. From one question to second, Second of third. Main point is if only interviewer ask question and interviewee say something and you again ask question how i explain me though on it.
If my application build on salesForce he told me to why it's build in salesforce. Why it's not develop in node or/and other database. My client decided that i know it also develop in node or other database. But i can't suggestion my client after 4 years of development .
I applied via Approached by Company and was interviewed in Nov 2024. There were 2 interview rounds.
(2 Questions)
- Q1. React native hooks
- Q2. Component architecture
(2 Questions)
- Q1. Javascript programs
- Q2. Coding
IOS Developer Interview Questions & Answers
Virtusa Consulting Services
Anonymous
posted on 12 Nov 2024
(2 Questions)
- Q1. Basic ios development questions
- Q2. Core data or any other data base
Interview Preparation Tips
I applied via Company Website and was interviewed in Aug 2024. There was 1 interview round.
(2 Questions)
- Q1. Explain MVVM and its pros/cons
- Ans.
MVVM is a design pattern that separates the UI, business logic, and data layers in an iOS application.
Model: Represents the data and business logic of the application.
View: Represents the UI components of the application.
ViewModel: Acts as a mediator between the Model and View, handling the presentation logic and data binding.
Pros: Separation of concerns, easier to maintain and test, promotes reusability.
Cons: Increase...
- Q2. Multithreading in swift
- Ans.
Multithreading in Swift allows for concurrent execution of tasks to improve performance and responsiveness.
Use Grand Central Dispatch (GCD) for managing concurrent tasks
Avoid blocking the main thread to prevent UI freezes
Consider using Operation and OperationQueue for more complex task management
Skills evaluated in this interview
(1 Question)
- Q1. Basics of Android
(1 Question)
- Q1. Technical implementation
(1 Question)
- Q1. Company fit culture test
Selected
I applied via LinkedIn and was interviewed in Aug 2023. There were 4 interview rounds.
(2 Questions)
- Q1. Android basics and life cycle
- Q2. Services and AIDL
(1 Question)
- Q1. Design patterns and use cases
(1 Question)
- Q1. Reason foe change current company
- Ans.
Seeking new challenges and growth opportunities in a more innovative environment.
Desire for professional growth
Seeking new challenges
Looking for a more innovative environment
Interview Preparation Tips
Senior Android Developer Interview Questions & Answers
DXC Technology
Jaya Sri
posted on 14 Jul 2023
Selected
I applied via Naukri.com and was interviewed in Jun 2023. There were 4 interview rounds.
The question about prblm solving
Any presentation or pdf to submit it at any topic or else to explain it
The discussion with my team mate
Interview Preparation Tips
- About Html
- C
(2 Questions)
- Q1. Basic android questions
- Q2. Services mvvm roomdb and all basic android things
Interview Preparation Tips
Try to be positive even through you are not getting output try to explain your logic
Selected
I applied via Walk-in and was interviewed before Mar 2022. There were 2 interview rounds.
(2 Questions)
- Q1. Japanese reading and introduce
- Q2. Kanji reading and meaning
- Ans.
Kanji is a system of Japanese writing using Chinese characters. Each character has a reading and meaning.
Kanji characters are used in combination with hiragana and katakana to write Japanese.
There are over 2,000 commonly used kanji characters.
Each kanji character has at least one reading and one meaning, but some have multiple readings and meanings.
For example, the kanji character for 'tree' can be read as 'ki' or 'mok
Interview Preparation Tips
Normal MCQ questions reasoning, java related and programs outputs
Difference between abstract classes and interfaces, Array sort time complexity
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