Walmart Interview Questions for Technical Profiles Last Updated : 23 Jan, 2024 Improve Improve Like Article Like Save Share Report Walmart is a multinational retail company that owns a chain of hypermarkets, discount department stores, and grocery stores and is known for its focus on low prices and everyday essentials. It was founded in 1962 by Sam Walton and is headquartered in Bentonville, Arkansas. Walmart is not only the world’s largest retailer by revenue but also the world’s largest private employer with over 2.3 million employees. Walmart has been ranked first in the Fortune 500 list of the largest corporations in the United States by total revenue since 2014 and has been investing heavily in e-commerce in recent years becoming the largest online retailer in the United States. Walmart Interview Questions Landing a job at Walmart can be a dream come true for many tech professionals. Walmart offers a dynamic and challenging work environment where you can make a real impact with its focus on innovation and cutting-edge technology. But before you can celebrate, you’ll need to ace the technical interview. To help you prepare, we’ve compiled a list of the most commonly asked technical interview questions at Walmart, backlinks with their solution articles, and practice pages. Table of Content DSA Problems DBMS Operating System OOPS Computer Network DSA Problems Walmart uses computer tricks (Data Structures and Algorithms) to organize stuff, manage products, and deliver things faster. These tricks also help them understand what customers like and make shopping online easier. It’s like smart tools that make Walmart work better and save money. Problems Practice Sort an array of 0s, 1s and 2s Try it Max Sum without Adjacents Try it Find a sorted subsequence of size 3 in linear time Try it k largest elements Try it Minimum number of jumps Try it Permutations of a given string Try it Merge Two Strings Alternatively Try it Reverse a Linked List in groups of given size Try it Add two numbers represented by Linked List Try it Convert a Binary Tree to a Circular Doubly Link List Try it Flattening a Linked List Try it Spirally traversing a matrix Try it Find triplets with zero sum Try it Search in a row-column sorted Matrix Try it Next Greater Element Try it Stock span problem Try it Rotten Oranges Try it Count the Reversals Try it Find all Unique Subsets of a given Set Try it First negative integer in every window of size k Try it Boundary Traversal of binary tree Try it Sum Tree Try it Vertical Traversal of Binary Tree Try it Sorted Linked List to Balanced BST Try it Floor in Binary Search Tree (BST) Try it Leaves to DLL Try it Check+ if two Nodes are Cousins Try it LRU Cache Try it Count the number of possible triangles Try it Word Search  Try it Unique partitions Try it  Find all possible words in a board of characters  Try it  Longest Increasing Subsequence (LIS)  Try it Subset Sum  Try it Count ways to reach the n’th stair  Try it Minimum number of deletions to make a string palindrome  Try it Wildcard Pattern Matching  Try it Longest substring to form a Palindrome  Try it 0 – 1 Knapsack Problem Try it Topological sort  Try it Allocate minimum number of pages  Try it Detect cycle in an undirected graph  Try it Bipartite Graph  Try it Alien Dictionary Try it Find the number of islands using DFS Try it  Bridges in a graph  Try it Prerequisite Tasks  Try it Minimum steps to reach target by a Knight Try it Minimum Swaps to Sort Try it Core Subjects DBMS Database Management System is a software or technology used to manage data from a database.  Explain the ACID properties of transactions. Compare and contrast different types of joins (inner, outer, left, right). How do you optimize a slow-running query? Explain the difference between Indexing and Hashing for indexing. What are the different types of normalization (1NF, 2NF, 3NF)? Explain the concept of concurrency control in DBMS. How do you handle data redundancy in a database? Describe the use of views in a database. Explain the difference between OLTP and OLAP databases. What are some best practices for database security? Operating System Operating System lies in the category of system software. It basically manages all the resources of the computer. What is scheduling and its types? What’s the Difference Between Paging and Segmentation What is a deadlock in OS? What is file system and its types in OS? What is Concurrency in Operating System ? What are the different types of virtualization? Discuss techniques Operating Systems Employ for Security and Protection? What are the various types of Linux Commands? What’s the difference between mutex and semaphore? What are the various Types of System Calls in OS? OOPS Object-oriented programming aims to implement real-world entities like inheritance, hiding, polymorphism, etc. in programming. Explain the difference between Inheritance and Polymorphism. What are the different types of Inheritance? Explain each with an example. What is Encapsulation? How does it benefit OOP design? What is Abstraction? How is it achieved in OOP? What are the different types of Polymorphism? Explain each with an example. Explain the concept of Method Overriding with an example. What is the difference between Public, Private, and Protected access modifiers? Explain the concept of Interfaces and how they are used in OOP. What are the advantages and disadvantages of using Abstract classes? Explain the concept of Static methods and variables in OOP. Computer Network Computer network is a system that connects numerous independent computers in order to share information (data) and resources What’s the difference between IPv4 and IPv6? Explain various types of network topologies? What is OSI layers in computer? Explain the difference between TCP and UDP protocols. What are the three-way handshake in TCP? How does routing work in a network? Explain the different types of routing protocols. What is Domain Name System(DNS)? What is DHCP? Explain the concept of subnetting and its benefits for network administration. What are firewalls and how do they protect networks from unauthorized access? Explain the concept of load balancing . Like Article Suggest improvement Next Salesforce Interview Questions for Technical Profiles Share your thoughts in the comments Add Your Comment Please Login to comment...