Vahanwire Interview Questions and Answers

Q1. What is your expected salary
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Q2. Your last experience would not be count because it is not relatable to this post , is it okay for you
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Q3. Can you relocate from your homtown to noida
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Q4. Provide you salary slip of last three months
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Q5. Provide contact number of you last employer for background verification
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Q1. Last organisation experiance
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Q1. Senior taking technical round
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Q1. Manger Taking technical round
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Q1. Salary Discussion
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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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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
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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

Q1. Delete nth node from end in linked list
Ans. 
To delete the nth node from the end in a linked list, we can use a two-pointer approach.
• Use two pointers, one to traverse the list and another to keep track of the nth node from the end.

• Move the second pointer n steps ahead of the first pointer.

• When the second pointer reaches the end of the list, the first pointer will be at the nth node from the end.

• Adjust the pointers to delete the nth node.
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Q2. Project discussion
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