United Health Group interview questions
Online test → Technical → HR·75% entry level
CS fundamentals
Showing 17 of 76 reported in this area
Explain exception handling in Java.
Java OOPS fundamentals
Explain memory management in C++
Networking theory questions (descriptive)
Explain database normalization and normal forms
What is an object file and what does the linker do?
Draw and explain the typical memory layout of a program
Where are global and extern variables stored in memory?
Explain how database connections are handled using JDBC.
How are AI/ML techniques like SVM, ANN, or GP better than linear regression?
Given two tables, find the person who has placed the maximum number of orders
Explain trees and their types, including Binary Search Tree (BST) and AVL Tree.
What is the trivial condition for Binary Search and what is the logic behind Ternary Search?
Design the database schema (tables and relationships) for a computer center management system.
Given a table representing directory details, check whether the given directory structure is correct
Given a code snippet, identify whether it demonstrates compile-time polymorphism or run-time polymorphism
Explain Support Vector Machines (SVM), Artificial Neural Networks (ANN), and Genetic Programming (GP) and compare them
DSA
Showing 27 of 74 reported in this area
Count the number of inversions in an array
Perform merge sort on a linked list
Rotate a linked list in groups of k.
Reverse a linked list in groups of size k
Generate all permutations of a given string.
Explain an algorithm to solve a Sudoku puzzle.
Remove the nth node from the end of a linked list
Find if a string is an interleaving of two other strings
Find the largest palindromic substring in a given string.
Search an element in a sorted and pivoted (rotated) array
Implement a stack data structure using queue data structure.
Write code to implement matrix multiplication using pointers
Search an element in a row-wise and column-wise sorted matrix
Explain the proper implementation of Depth First Search (DFS).
Implement pattern matching with wildcard or special characters
Convert a binary tree to its mirror using an iterative approach
Find the length of the longest common subsequence for two given strings
Write an algorithm for traffic light control when all roads are two-way.
Find the kth largest element in an unsorted array and write complete code
Write a program to find the longest common substring between two strings.
Remove every k-th person from total of n persons sitting in a round circle
Find duplicate elements in an array with O(n) time and constant extra space
Save Gotham (find the next greater element for each element in an array and sum them)
Given two sorted linked lists, merge them in sorted order and then reverse the resulting list.
Given millions of data points with values in the range 1 to 300, which sorting technique is best and why?
Given numbers from 1 to N with exactly one number missing and one repeated, find the missing and the repeated number.
Given arrival and departure times of buses at a depot, find the minimum number of bus stands required so that no bus has to wait.
Aptitude
Showing 5 of 12 reported in this area
Heights and distances problems using trigonometry
Basic logic-based aptitude questions (30 problems)
Permutation and combination problems with probability
Solve data interpretation problems based on graphs and pie charts.
How many squares of side length a can fit inside a triangle of height h and base b? Derive the formula
System design
Showing 7 of 10 reported in this area
Design a website/system that can handle a large number of users
Design a future washing machine using a block diagram and explain its working.
Design a modern car by drawing its block diagram and explain the functionality of each component.
Design a database to assign classes based on availability and facilities such as projectors and computer systems.
Given a recommendation system with O(n^3) time complexity, how would you optimize it to work on a large-scale database?
How would you adapt a recommendation system if the arbitrarily assigned feature priorities do not match user preferences?
Design a system for an online milk vendor to manage suppliers, customer coupons, coupon expiry, staff handling, and milk price notifications
Behavioural
Showing 3 of 6 reported in this area
Describe a situation that frustrated you and how you dealt with it.
What is the most difficult decision you had to make and how did you make it?
How will you handle a team member who is not contributing or not working properly?
Puzzles
1 questions reported in this area
25 horses puzzle: What is the minimum number of races required to find the top 3 fastest horses?
Showing 60 of 145 questions. Ranked by how often the same question came back across reports.
Practise a United Health Group-style interview
A spoken interview built from these questions, scored when you finish; the report is yours.
Start practisingCommon questions
What questions does United Health Group ask?
Candidate interview reports most often cover CS fundamentals (42%) and DSA (41%).
How many rounds does United Health Group interview have?
Candidate interview reports show an average of 3.6 rounds per experience, with a typical sequence of Online test → Technical → HR. Individual interview paths can vary.
Is the United Health Group interview hard?
Among questions with a reported difficulty, the mix is easy 56%, medium 41%, hard 4%.