Wohlig Transformations Software Engineer Interview Questions and Answers

There will be 3 coding questions. They are of medium and hard level.

Q1. Sort array consisting 0's 1's and 2's without inbuilt functions
Ans. 
Sort an array of 0's, 1's, and 2's without using inbuilt functions.
• Use three pointers to keep track of the last index of 0's, 1's, and 2's

• Iterate through the array and swap elements based on their value

• Continue until all elements are sorted
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Q1. Os cn related questions
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Q1. Java questions and general hr questions
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There are three sections: -
1. Quants
2. English
3. Reasoning
All sections are accessible medium but you have maintained the speed and accuracy.
after that coding snippet are in java/python.

Code snippets are there in coding sections.

Duration is around 1 hour

Q1. 1. Basic programming concepts 2. OOP concepts and basic problem solving skills
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Q1. Programming question
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Q1. 1. Basic questions
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Q1. Second largest number in an array
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Q2. Pairs with given sum
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Q1. OOPS based questions
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Q2. Basic language based questions
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Q1. What is single page application
Ans. 
Single page application is a web application that loads a single HTML page and dynamically updates the content as the user interacts with the app.
• SPA uses AJAX and HTML5 to create fluid and responsive user experience.

• It eliminates the need for page reloading during use, making it faster and more efficient.

• Examples include Gmail, Facebook, and Google Maps.
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Q2. What is state management
Ans. 
State management is the process of managing the state of an application, including data flow, user interface updates, and user interactions.
• State management involves storing and updating the state of an application to ensure data consistency.

• It helps in managing user interface updates based on changes in the application state.

• State management is crucial for handling user interactions and maintaining a seamless user exp...read more
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Q1. Make a div, so when you hover on it a timer should start.
Ans. 
Create a div that starts a timer when hovered over
• Create a div element in HTML

• Use CSS to style the div

• Add JavaScript event listeners for hover

• Start a timer using JavaScript when hover event is triggered
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Q1. Build an OTP component
Ans. 
Build a secure OTP component for authentication purposes.
• Generate random one-time passwords using a secure algorithm

• Implement time-based expiration for OTPs

• Provide a way for users to input and verify OTPs

• Store OTPs securely to prevent unauthorized access

• Consider using multi-factor authentication for added security
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