Foundever Technical Analyst Interview Questions and Answers

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

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

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

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

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.

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

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