Chalo Interview Questions and Answers for Freshers

Q1. How many sorting algorithms you know? Explain any one of the algorithm (He told me for insertion sort)? Write the code for it and tell the complexity
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Q2. Puzzle based on 9 coins puzzle
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Q3. Explain about the Project and the technologies used in it.
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Solving normal Puzzles to test aptitude.

Sample app was asked to create.

Q1. Program for a palindrome Number.
Ans. 
Program to check if a number is a palindrome.
• Convert the number to a string to easily check for palindrome

• Reverse the string and compare it with the original string

• If they are the same, the number is a palindrome
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Q2. React Lifecycle methods
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Q3. Hooks in react?
Ans. 
Hooks are a feature in React that allow you to use state and other React features in functional components.
• Hooks were introduced in React 16.8.

• They allow you to use state and other React features without writing a class.

• Commonly used hooks include useState, useEffect, useContext, and useReducer.

• Hooks must be used at the top level of your functional component.

• Example: const [count, setCount] = useState(0);
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Q1. Create a High-level design
Ans. 
Design a high-level architecture for a software system
• Identify the main components of the system

• Define the interactions between the components

• Consider scalability, security, and performance

• Choose appropriate technologies and frameworks

• Create a diagram to visualize the architecture
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Q2. Questions on the design you created
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Q1. Design Questions to build a scalable micro service
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Q2. Salary Discussion
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Asked a few questions regarding my experience