Concentrix Corporation Senior Technical Lead Interview Questions and Answers

Q1. HR Screening - Resume
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Q1. About the current Project
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Q2. Some basic Java concepts
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Asked to write a code to select values on the basis of the map keys using java 8 stream API

Q1. How OAuth works?
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OAuth is an open standard for access delegation, commonly used as a way for Internet users to grant websites or applications access to their information on other websites but without giving them the passwords.
• OAuth allows users to grant access to their information without sharing their passwords.

• It is commonly used for authentication and authorization in web applications.

• OAuth uses tokens to grant access to resources o...read more
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Q2. Benefits of using Stream API.
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Stream API provides a way to process collections of objects in a functional style.
• Allows for concise and readable code

• Supports parallel processing for improved performance

• Provides a set of powerful functions like map, filter, reduce, etc.

• Enables lazy evaluation for better memory efficiency
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Q1. Salary Negotiation
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Q1. Normal js questions
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Q2. React - create a to do list
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Create a to do list using React
• Create a new React project using create-react-app

• Create a component for the to do list

• Use state to manage the list of tasks

• Allow users to add new tasks and mark tasks as completed

• Style the to do list using CSS or a UI library like Material-UI
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Q3. What you know about typescript
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TypeScript is a superset of JavaScript that adds static typing and other features to help developers write more robust code.
• TypeScript is a statically typed language that compiles to plain JavaScript

• It supports modern JavaScript features like classes, interfaces, and modules

• TypeScript helps catch errors at compile time, making code more reliable and maintainable
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Q1. Normal js questions
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Q2. Write a map function.
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A map function applies a given function to each element of an array and returns a new array with the results.
• Use the map function to iterate over each element of the array

• Pass a callback function as an argument to the map function

• The callback function should take the current element as input and return the transformed element

• Example: const arr = ['apple', 'banana', 'cherry']; const newArr = arr.map(item => item.toUpper
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Q1. Technical stack in mobile application?
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The technical stack in mobile application includes programming languages, frameworks, libraries, and tools used to develop the app.
• Programming languages: Java, Kotlin, Swift, Objective-C

• Frameworks: React Native, Flutter, Xamarin

• Libraries: Retrofit, Alamofire, Glide, Picasso

• Tools: Android Studio, Xcode, Visual Studio

• Other technologies: RESTful APIs, Firebase, Push notifications
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Q2. Native library’s in ios ?
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Native libraries are pre-compiled code that can be used in iOS apps for various functionalities.
• Native libraries are written in languages like C, C++, and Objective-C.

• They can be used for tasks like image processing, audio and video playback, and networking.

• Examples of native libraries in iOS include Core Data, Core Graphics, and Core Animation.
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