Wolters Kluwer Senior Software Engineer Interview Questions and Answers for Experienced

Q1. Advantage and disadvantage of framework.
Ans. 
Frameworks provide structure and pre-built components for software development, but can also limit flexibility and require learning curve.
• Advantage: Provides structure and pre-built components for faster development

• Advantage: Can improve code quality and maintainability

• Disadvantage: Can limit flexibility and customization

• Disadvantage: Requires learning curve and potential dependency issues

• Example: ReactJS provides a fr...read more
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Q1. What is Oops? Advantage and disadvantage
Ans. 
Oops stands for Object-Oriented Programming. It is a programming paradigm that uses objects to represent real-world entities.
• Advantages: code reusability, modularity, encapsulation, inheritance, polymorphism

• Disadvantages: complexity, steep learning curve, performance overhead

• Example: creating a class 'Car' with properties like 'make', 'model', and 'year', and methods like 'start_engine' and 'stop_engine'
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Q1. Immediate higher number to right
Ans. 
The immediate higher number to the right of each element in an array
• Iterate through the array from right to left

• For each element, compare it with the elements to its right to find the immediate higher number

• Store the immediate higher number in a new array
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Q2. Count pair whose sum is perfect square.
Ans. 
Count pairs in an array whose sum is a perfect square.
• Iterate through the array and calculate the sum of each pair.

• Check if the sum is a perfect square using a function.

• Increment a counter if the sum is a perfect square.

• Return the final count of pairs.
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Q3. Parking lot LLD
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Q4. E Commerce HLD and LLD
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Q5. Kth largest number in BST
Ans. 
To find the Kth largest number in a Binary Search Tree (BST), we can perform an in-order traversal and keep track of the Kth largest element.
• Perform an in-order traversal of the BST to get the elements in non-decreasing order.

• Keep track of the Kth largest element while traversing the BST.

• Return the Kth largest element once found.
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Two questions asked:
1. Partition equal sum
2. find length largest region boolean matrix

Q1. Coding round with senior software engineer
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Q1. Resume based discussion with lead software engineer
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Q1. Resume based and coding round with hiring manager
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Q1. Cross team resume based and coding round with a staff engineer
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Q1. Attitude and culture fit
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Very basic problem solving round

Q1. Medium level DSA problem solving round
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Write a program that solves sudoku

Q1. How do you build a tiny URL Application?
Ans. 
A tiny URL application is built by generating short aliases for long URLs, storing them in a database, and redirecting users to the original URL when the alias is accessed.
• Generate a unique short alias for each long URL

• Store the alias and corresponding long URL in a database

• Implement a redirect mechanism to redirect users from the alias to the original URL

• Handle edge cases like duplicate URLs, expired aliases, and inva
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Hacker rank evaluation with three questions

Q1. Android fundamentals
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Q2. Lifecycle methods and synchronization
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Q1. Comparator based problem solving
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Q2. Binary tree based Hashmap question
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Q1. Usual behavior fit questions
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Basic DS question like dutch flag problem.

Q1. Implement debounce function
Ans. 
Debounce function delays the execution of a function until after a specified amount of time has passed since the last time it was invoked.
• Create a function that takes a function and a delay time as parameters

• Use setTimeout to delay the execution of the function

• Use clearTimeout to reset the timer if the function is invoked again within the delay time
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Q2. Closure based questions.
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