Wissen Technology Software Engineer Interview Questions, Process, and Tips for Experienced

Duration was for an hour, included basic front end questions

Q1. Explain component lifecycle in React
Ans. 
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
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Q2. Write a component to display a table
Ans. 
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
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Q1. What is method overloading?
Ans. 
Method overloading is when multiple methods in a class have the same name but different parameters.
• Allows multiple methods with the same name but different parameters to be defined in a class

• Parameters can differ in number, type, or order

• Example: void print(int num) and void print(String text) are overloaded methods
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Q1. What is thread?
Ans. 
A thread is a lightweight process that can run concurrently with other threads within the same process.
• Threads allow for parallel execution of tasks within a single process

• Threads share the same memory space and resources within a process

• Examples include a web server handling multiple client requests concurrently
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Q1. Asked 2 coding questions and I did that completely.
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Q1. 2nd round was an HR round where they asked all the questions related to HR and did salary discussion
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Q1. This was a client round where it was taken by Goldman Sachs. They again asked 2 coding questions. Leetcode type.
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