Foundever Technical Consultant Interview Questions and Answers

Asked to write a code to select values on the basis of the map keys using java 8 stream API

Q1. How OAuth works?
Ans. 
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.
Ans. 
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
Ans. 
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
Ans. 
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.
Ans. 
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. Real life example and related technical question
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Q2. Address the interview like a technical solution provider.
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Q1. Technical stack in mobile application?
Ans. 
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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Q1. Which type Scheduler you used in ADF ?
Ans. 
I have used the built-in scheduler in Azure Data Factory (ADF).
• ADF provides a built-in scheduler that allows you to schedule and orchestrate data integration and data transformation activities.

• The scheduler in ADF supports various scheduling options such as time-based, event-based, and tumbling window triggers.

• You can define the schedule for your pipelines and activities using JSON-based expressions.

• For example, you ca...read more
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Q2. How do you perform sql query optimization ?
Ans. 
SQL query optimization involves analyzing and modifying queries to improve performance.
• Identify and eliminate unnecessary or redundant queries

• Use appropriate indexes to speed up data retrieval

• Optimize query structure and syntax

• Avoid using wildcard characters at the beginning of a LIKE statement

• Minimize the use of subqueries

• Use EXPLAIN or query execution plans to identify bottlenecks

• Consider denormalizing tables for fre...read more
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Q1. Tell me about yourself.
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Q2. Share details of your previous job.
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Q3. What are your salary expectations?
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Q1. Why should we hire you?
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Q2. Salary expectations...................
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