Altisource Senior Software Engineer Interview Questions and Answers

Q1. What is Virtual dom
Ans. 
Virtual DOM is a lightweight copy of the actual DOM used for efficient updates in web development.
• Virtual DOM is a concept used in frameworks like React to improve performance by minimizing actual DOM manipulations.

• Changes are first made to the Virtual DOM, then compared with the actual DOM to only update what has changed.

• This process helps reduce the number of updates needed and improves the overall speed of the appli
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Q2. Diiference Sate vs Props
Ans. 
State is mutable data managed internally by a component, while props are immutable data passed from parent to child components.
• State is managed internally by the component and can be changed using setState() method

• Props are passed down from parent to child components and cannot be changed by the child component

• State is used for data that can change over time within a component, while props are used for passing data fro
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1. Basic Questions involving NodeJS (Event Loop, variables, constants, var vs let)
2. A simple algorithmic puzzle with pseudocode
3. Past Experience

Q1. 1. Databases - what is an index? 2. Caching, what is Redis? 3. Past Experience 4. Simple Algorithmic Question
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Q1. How do you design metro line for new station
Ans. 
Designing a metro line for a new station involves planning routes, considering passenger flow, and ensuring connectivity.
• Conduct a feasibility study to determine the need for a new station

• Consider factors such as population density, traffic patterns, and potential future growth

• Plan the route to optimize connectivity with existing stations and transportation hubs

• Design the station layout to accommodate passenger flow an...read more
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Q1. How do you learn about our company
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Q2. What should one do in tough times
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