NCR Voyix Software Engineer Intern Interview Questions, Process, and Tips for Freshers

2 dsa questions
1st is based on strings (easy)
2nd one ie based on hashmaps (medium)

Q1. IP address validation dsa
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Q2. Oops question SQL query on employee database
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Q1. Managerial round With questions about Linux commands Behavioral questions Questions about past projects
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Round duration - 60 minutes
Round difficulty - Medium

Technical Interview round with questions on DSA and DBMS.

Q1. 
Merge Sort Problem Statement
You are given a sequence of numbers, ARR. Your task is to return a sorted sequence of ARR in non-descending order using the Merge Sort algorithm.
Explanation:
The Merge Sort...read more
Ans. 
Implement Merge Sort algorithm to sort a sequence of numbers in non-descending order.
• Divide the input array into two halves recursively until each array has only one element.

• Merge the sorted halves to produce a completely sorted array.

• Time complexity of Merge Sort is O(n log n).
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Q2. 
Search In Rotated Sorted Array Problem Statement
Given a rotated sorted array ARR of size 'N' and an integer 'K', determine the index at which 'K' is present in the array.
Note:
1. If 'K' is not present...read more
Ans. 
Given a rotated sorted array, find the index of a given integer 'K'.
• Use binary search to efficiently find the index of 'K'.

• Consider the rotation of the array while performing the search.

• Handle cases where 'K' is not present in the array by returning -1.
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Q3. Write a query to find the nth highest salary from a database.
Ans. 
Query to find the nth highest salary from a database
• Use ORDER BY and LIMIT in the query

• Consider handling ties if multiple employees have the same salary

• Example: SELECT DISTINCT salary FROM employees ORDER BY salary DESC LIMIT n-1, 1
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Round duration - 60 minutes
Round difficulty - Easy

Questions based on OOPS and Software Lifecycle were asked in this round.

Q1. Can you explain the OOP concepts?
Ans. 
OOP concepts are fundamental principles in object-oriented programming that help in organizing and designing code.
• Encapsulation: Bundling data and methods that operate on the data into a single unit (class).

• Inheritance: Allowing a class to inherit properties and behavior from another class.

• Polymorphism: The ability for objects of different classes to respond to the same message in different ways.

• Abstraction: Hiding the...read more
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Q2. Can you explain the access modifiers in Java?
Ans. 
Access modifiers in Java control the visibility and accessibility of classes, methods, and variables.
• There are four types of access modifiers in Java: public, private, protected, and default.

• Public: accessible from any other class.

• Private: accessible only within the same class.

• Protected: accessible within the same package and subclasses.

• Default: accessible only within the same package.

• Example: public class MyClass { pr
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Q3. What is Scrum methodology?
Ans. 
Scrum is an agile methodology used in software development for managing and completing complex projects.
• Scrum involves breaking down projects into small, manageable tasks called sprints.

• It emphasizes frequent communication and collaboration among team members.

• Scrum uses daily stand-up meetings to track progress and address any obstacles.

• Roles in Scrum include Product Owner, Scrum Master, and Development Team.

• Popular to...read more
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Round duration - 30 minutes
Round difficulty - Easy

The last round was managerial round.