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Walmart SDE (Software Development Engineer) Interview Questions and Answers
Walmart SDE (Software Development Engineer) Interview Experiences
3 interviews found
Anonymous
(5 Questions)
- Q1. Prototypical Inheritance
- Q2. Why we can't use arrow function in constructor
- Ans.
Arrow functions do not have their own 'this' value, which is required in constructors.
Arrow functions do not have a 'this' binding, so 'this' will refer to the parent scope.
Constructors require 'this' to refer to the newly created object.
Using arrow functions in constructors can lead to unexpected behavior and errors.
- Q3. Explain details about CORS
- Ans.
CORS stands for Cross-Origin Resource Sharing and is a security feature implemented in web browsers.
CORS allows web servers to specify which origins are allowed to access their resources.
It is used to prevent unauthorized access to resources on a different domain.
CORS is implemented using HTTP headers such as Access-Control-Allow-Origin and Access-Control-Allow-Methods.
It is important to properly configure CORS to avoi...
- Q4. Explain with an example about Lexical Scoping
- Ans.
Lexical scoping is a way of defining variable scope based on where they are declared in the code.
Variables declared inside a function have local scope and are not accessible outside the function.
Variables declared outside a function have global scope and can be accessed from anywhere in the code.
Nested functions can access variables declared in their parent function.
Example: function outer() { let x = 10; function inne...
- Q5. Advantages of arrow function
- Ans.
Arrow functions have concise syntax, implicit return, and lexical this binding.
Shorter syntax than traditional function expressions
Implicit return of a single expression
Lexical this binding, avoiding the need for .bind() or self = this
Example: const double = (num) => num * 2;
Example: const names = ['Alice', 'Bob', 'Charlie']; const nameLengths = names.map(name => name.length);
Interview Preparation Tips
- OOPS
- Javascript
- Data Structures
Skills evaluated in this interview
I applied via Referral and was interviewed in May 2022. There were 4 interview rounds.
(1 Question)
- Q1. Asked data structures and algorithms in 1st round
(1 Question)
- Q1. Spring boot core Java microservices algo lld hld
(1 Question)
- Q1. Hld for ticket management ..like ticket management in Zomato
- Ans.
Design a ticket management system for handling customer requests in a food delivery service like Zomato.
User Authentication: Allow users to log in and manage their tickets.
Ticket Creation: Users can create tickets for issues like order delays or wrong deliveries.
Ticket Status Tracking: Users can view the status of their tickets (open, in progress, resolved).
Admin Dashboard: Admins can view all tickets, assign them to s...
(1 Question)
- Q1. Sal negotiation + basic communication skills
Interview Preparation Tips
SDE (Software Development Engineer) Interview Questions & Answers
apoorva varma
posted on 27 May 2022
(1 Question)
- Q1. Orages spoling question
Interview Preparation Tips
Top trending discussions
Interview questions from similar companies
Abhishek Singh
I applied via Other and was interviewed before Nov 2020. There was 1 interview round.
Interview Questionnaire
1 Question
- Q1. Programming question on Java
Interview Preparation Tips
I appeared for an interview before Sep 2020.
Round duration - 90 minutes
Round difficulty - Medium
(2 Questions)
Round duration - 60 minutes
Round difficulty - Medium
This was the technical round, held around at 10 AM IST on Google Meet.
Firstly she greeted me and asked me to tell something about myself, to which I introduced myself, explaining my academic and some projects also.
After that we moved on to the Hackathon project, which was smart cart self-checkout system. I explained the project along with the code, wherever necessary.
Every word you say while explaining should be clear to you.I used Firebase and SQL while explaining my project, to which she asked some questions related to it,
Then she moved to the DBMS part, types of joins,what is indexing, how to approach if you were to design a payment system.
At last she asked me some Data Structure questions, which were of medium complexity
- 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...
- Ans.
Remove the Kth node from the end of a singly linked list given the position 'K'.
Traverse the list to find the length 'N' of the linked list.
Calculate the position of the node to be removed from the beginning as 'N - K + 1'.
Traverse the list again and remove the node at the calculated position.
- Q2.
House Robber Problem Statement
Consider Mr. X, a professional robber who is planning to rob houses along a street. These houses are arranged in a circle, which means the first house is a neighbor to the l...
- Ans.
House Robber problem where adjacent houses have connected security system, find maximum money Mr. X can rob without triggering security.
Use dynamic programming to keep track of maximum money robbed at each house.
At each house, decide whether to rob the current house or skip it based on maximum money robbed so far.
Handle the circular nature of houses by considering two cases: robbing the first house and not robbing the ...
Round duration - 30 minutes
Round difficulty - Easy
The interviewer was very frank and cheerful. This was held at 2:30 PM IST on Google Meet.
He firstly greeted me and asked me how I was doing.
How was my previous round, any technical difficulties?
Then he asked me to introduce myself.
He started telling about his journey to Lowe's and his technical background.
Then he asked some HR related questions
Interview Preparation Tips
Tip 1 : Practice DSA questions, interview questions as much as you can.(400 leetcode questions) + (1000+ geeksforgeeks score) is good approximation of your preparation.
Tip 2 : You should have a good internship experience or 1 or 2 good projects on Android/web-d or Machine Learning.You should be through with your projects and be able to tell further improvements for the future.
Tip 3 : Be CONFIDENT with what you say. Don't murmur or speak in the mouth.The interviewer wants to know your thought process.
Tip 1 : Resume is the first impression of you.so it must be very eye-catching. write some decent (maybe 1 or 2 is enough) projects on resume.
Tip 2 : Should be through with each and every point you have written on your resume. people usually write 10- 15 skills on resume while confident in only 5.Please don't do it.
Skills evaluated in this interview
I applied via Walk-in and was interviewed in Mar 2023. There were 3 interview rounds.
Good aptitude test and group discussion. Also assignment and case study and HR and assignment and technical and one on one round
Good coding test and aptitude test, Hr and technical and one on one round and case study and assignment
Interview Preparation Tips
Positive
Outlook
Grateful
Selected
I applied via Walk-in and was interviewed before Apr 2023. There were 2 interview rounds.
There was a aptitude test with coding problems
(1 Question)
- Q1. Basic Puzzles were asked
I applied via Company Website and was interviewed in Mar 2021. There were 4 interview rounds.
Interview Questionnaire
6 Questions
- Q1. Internal working of hash map
- Ans.
Hash map is a data structure that stores key-value pairs and uses a hash function to map keys to indices in an array.
Hash function is used to convert the key into an index in the array
Collisions occur when two keys map to the same index, which can be resolved using separate chaining or open addressing
Load factor is the ratio of number of elements to the size of the array, and affects the performance of hash map
Operatio...
- Q2. Core Java Concepts
- Q3. SQL queries to get 2nd highest salary
- Q4. Authentication and Authorisation
- Q5. Data structures and algorithms questions
- Q6. Questions on design side
Interview Preparation Tips
Skills evaluated in this interview
I applied via Recruitment Consultant and was interviewed in Oct 2021. There were 3 interview rounds.
Interview Questionnaire
2 Questions
- Q1. Java8, ds and algo
- Q2. Java springboot Microservices
Interview Preparation Tips
I applied via LinkedIn and was interviewed in Nov 2021. There were 3 interview rounds.
Interview Questionnaire
1 Question
- Q1. Your counter offer.
Interview Preparation Tips
2.Microservices must be there in your resume .Even if you are top notch in coding you will not be selected if you have not worked on micro services.
3.Bad experience when it comes to the compensation they pay very very less not even try to match the compensation just simply reject if you have a nice counter offer.
4.Advice : When the candidate is good be flexible in your budget .A good candidate will definitely go ahead and do great work for the team.Or at least try to match the counter offer.
5.Process is really really slow and you might end up losing a potential candidate .
6.Lowes Hires a person who has less salary expectations rather than the person who does the best they are OK with mediocrity.
7.Please don't think this is a product based and join .Lowes has people with service based organization mindset.
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