Woodenstreet.com Senior IT Executive Interview Questions and Answers

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.
Answered by AI
Add your answer
Q2. Project discussion
Add your answer

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
Answered by AI
Add your answer
Q2. React Lifecycle methods
Add your answer
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);
Answered by AI
Add your answer

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
Answered by AI
Add your answer
Q2. Questions on the design you created
Add your answer

Q1. 1. Questions around projects : JWT, UserAuthentication etc
Add your answer
Q2. 2. Write a code to find frequency of characters in a given string?
Ans. 
Code to find frequency of characters in a given string
• Use a hash table to store character frequencies

• Iterate through the string and update the hash table accordingly

• Print the hash table to display the character frequencies
Answered by AI
Add your answer

Q1. 1. Write a code to reverse a linked list?
Ans. 
Code to reverse a linked list
• Create three pointers: prev, curr, and next

• Initialize prev to null and curr to head

• Loop through the list and set next to curr's next node

• Set curr's next node to prev

• Move prev and curr one node ahead

• Return prev as the new head
Answered by AI
Add your answer
Q2. 2. Write a code to reverse linked list in size of K?
Ans. 
Code to reverse linked list in size of K
• Create a function that takes head of linked list and size K as input

• Traverse the linked list in groups of K nodes

• Reverse each group of K nodes using iterative or recursive approach

• Connect the reversed groups to form the final linked list

• Return the new head of the reversed linked list
Answered by AI
Add your answer
Q3. 3. Questions around project and design a database structure for comments system of quora?
Add your answer

Q1. Basic HR round questions
Add your answer

Given an simple gaming questions to be developed in JS

Given another UI design in image to be developed

Q1. How do handle adherence issues?
Ans. 
Adherence issues are handled by addressing the root cause, providing training and support, and implementing accountability measures.
• Identify the reasons for non-adherence

• Provide clear expectations and guidelines

• Offer training and support to improve adherence

• Implement accountability measures such as regular check-ins and performance evaluations

• Address any underlying issues or obstacles that may hinder adherence

• Recognize...read more
Answered by AI
Add your answer
Q2. To takle with adherence issue I use skill-will matrix , I will sit accross the table and find out the problem one facing than I will give a timeline for the improvement and monitor the performance accordin...read more
Add your answer