Newfold Digital IT Global Service Desk Technician Interview Questions and Answers

Q1. Tell me about yourself
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Q1. Asking about my previous experience
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Q1. Final round with ops managers
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Round duration - 120 Minutes
Round difficulty - Easy

The round was conducted in day around 3PM.

Q1. 
Partition Equal Subset Sum Problem
Given an array ARR consisting of 'N' positive integers, determine if it is possible to partition the array into two subsets such that the sum of the elements in both sub...read more
Ans. 
The problem is to determine if it is possible to partition an array into two subsets with equal sum.
• Use dynamic programming to solve this problem efficiently.

• Create a 2D array to store the results of subproblems.

• Check if the sum of the array is even before attempting to partition it.

• Iterate through the array and update the 2D array based on the sum of subsets.

• Return true if a subset with half the sum is found, false ot
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Round duration - 30 Minutes
Round difficulty - Easy

The interview was preponed and was conducted at 9AM.
The interviewer was friendly and I had saw him earlier at pre-placement talk.

Q1. 
Convert Sentence to Pascal Case
Given a string STR, your task is to remove spaces from STR and convert it to Pascal case format. The function should return the modified STR.
In Pascal case, words are con...read more
Ans. 
Convert a given string to Pascal case format by removing spaces and capitalizing the first letter of each word.
• Iterate through each character in the string

• If the character is a space, skip it

• If the character is not a space and the previous character is a space or it is the first character, capitalize it
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Q2. Write an SQL query to retrieve the Nth highest salary from a database.
Ans. 
SQL query to retrieve the Nth highest salary from a database
• Use the ORDER BY clause to sort salaries in descending order

• Use the LIMIT clause to retrieve the Nth highest salary

• Consider handling cases where there might be ties for the Nth highest salary
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Round duration - 30 Minutes
Round difficulty - Easy

This round was conducted 15mins after 1st round.

Q1. 
Remove the Kth Node from the End of a Linked List
You are given a singly Linked List with 'N' nodes containing integer data and an integer 'K'. Your task is to delete the Kth node from the end of this Lin...read more
Ans. 
Remove the Kth node from the end of a singly linked list.
• Traverse the list to find the length 'N'.

• Calculate the position of the node to be removed from the beginning as 'N - K + 1'.

• Remove the node at the calculated position.

• Handle edge cases like removing the head or tail of the list.

• Update the pointers accordingly after removal.
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