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I was interviewed in Nov 2024.
Coding test was easy. They asked LC easy anyone with fair understanding of programming can easily solve it.
I applied via Naukri.com and was interviewed in Dec 2024. There was 1 interview round.
Merge sorted arrays into single sorted array
Use a merge sort algorithm to combine the arrays
Iterate through both arrays and compare elements to merge them
Time complexity can be O(n log n) if using merge sort
I applied via Referral and was interviewed in Oct 2024. There were 2 interview rounds.
HackerRank assessment
2 coding questions and some MCQs on Java and SQL.
To use a custom object as a key in HashMap, override hashCode() and equals() methods in the custom object class.
Override hashCode() method to generate a unique hash code for the custom object.
Override equals() method to compare two custom objects for equality.
Ensure immutability of the custom object to prevent unexpected behavior.
Query to retrieve all employees with a salary greater than $50,000
Use SELECT statement to retrieve data
Use WHERE clause to filter employees with salary greater than $50,000
Wissen Technology interview questions for designations
Use synchronized blocks or locks to ensure threads print numbers in sequence.
Use synchronized blocks or locks to ensure only one thread can access the shared resource (number to be printed) at a time.
Use a shared variable to keep track of the current number to be printed and update it after each thread prints its number.
Use a loop to iterate from 1 to 10 and have each thread check if it is its turn to print the number.
Get interview-ready with Top Wissen Technology Interview Questions
Coding test with 2 questions
I applied via Referral and was interviewed in Jan 2024. There were 4 interview rounds.
It had MCQ based Technical question
React JS is a JavaScript library for building user interfaces.
React JS is maintained by Facebook.
It allows developers to create reusable UI components.
React JS uses a virtual DOM for better performance.
Current stable version is 17.0.2 (as of September 2021).
React Js offers fast rendering, reusable components, virtual DOM, and easy integration with other libraries.
Fast rendering due to virtual DOM
Reusable components for efficient development
Easy integration with other libraries like Redux
Support for server-side rendering for improved SEO
One-way data binding for predictable data flow
Closures are functions that have access to variables from their containing scope even after the function has finished executing.
Closures allow functions to maintain access to variables from their parent scope
They are commonly used in event handlers and callbacks
Closures can be used to create private variables in JavaScript
Basic java oops and coding question
Develop a chat app for real-time communication
Use WebSocket for real-time communication
Implement user authentication and authorization
Design a user-friendly interface with features like emojis and file sharing
Duration was for an hour, included basic front end questions
Component lifecycle in React refers to the series of methods that are invoked at different stages of a component's existence.
Mounting phase: constructor, render, componentDidMount
Updating phase: render, componentDidUpdate
Unmounting phase: componentWillUnmount
A component to display a table in a software application
Use HTML and CSS to create the structure and styling of the table
Use JavaScript to populate the table with data dynamically
Consider adding features like sorting, filtering, and pagination for better user experience
I applied via Naukri.com and was interviewed in Jun 2024. There was 1 interview round.
DSA and Algo. Questions on Arrays and Strings.
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The duration of Wissen Technology Software Engineer interview process can vary, but typically it takes about less than 2 weeks to complete.
based on 19 interviews
4 Interview rounds
based on 91 reviews
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