Walmart Staff Software Engineer Interview Questions and Answers

Q1. Tell me about yourself
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Q1. How it will work or what is the type of XYZ
Ans. 
The type of XYZ is a software platform that utilizes machine learning algorithms to analyze data and provide insights.
• XYZ is a software platform

• It uses machine learning algorithms to analyze data

• It provides insights based on the analyzed data

• Examples of use cases include fraud detection, predictive maintenance, and customer segmentation
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There was a aptitude test with coding problems

Q1. Basic Puzzles were asked
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Was easy to crack infact was simple

Involve group of 8 and related to come and pros

Q1. What are software testing techniques
Ans. 
Software testing techniques are methods used to ensure that software applications are functioning correctly and meeting requirements.
• Black box testing: Testing the functionality of a software application without knowing its internal code.

• White box testing: Testing the internal code and structure of a software application.

• Unit testing: Testing individual units or components of a software application.

• Integration testing:...read more
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Q1. 1. Tableau questions
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Q1. Tableau questions
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Q1. Tell me about yourself
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Q1. Java tricky question related to collections
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Q1. HLD discussion related to current project
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Q1. 2 DS questions, 1 SQL question
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Q2. Details of projects worked, containerization, APIs
Ans. 
I have worked on multiple projects involving containerization and developing APIs.
• Developed microservices using Docker containers for easy deployment and scalability

• Created RESTful APIs using Node.js and Express framework

• Integrated third-party APIs for data retrieval and processing

• Utilized Kubernetes for container orchestration and management
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Q1. Python - ML/DS pipeline
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Q2. Java- Springboot framework
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Q1. Questions about JavaScript, different types of DataTypes,
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Q2. Write code to add elements dynamically
Ans. 
Adding elements dynamically to an array in code
• Use push() method to add elements to an array in JavaScript

• In Python, use append() method to add elements to a list

• In Java, use ArrayList and add() method to dynamically add elements
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Q3. What is Hoisting
Ans. 
Hoisting is a JavaScript mechanism where variable and function declarations are moved to the top of their containing scope.
• Variable and function declarations are hoisted to the top of their scope during the compilation phase.

• Only the declarations are hoisted, not the initializations.

• Function declarations take precedence over variable declarations when hoisted.
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Q1. Current CTC, Experience
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Q2. What is expected CTC
Ans. 
Expected CTC should be based on industry standards, experience, skills, and location.
• Research industry standards for Software Engineer salaries

• Consider your experience level and skills when determining expected CTC

• Take into account the cost of living in the location of the job

• Negotiate based on the job responsibilities and market demand
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Q1. System Design Questions, Situation based problems of system design
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Q2. Data Structure Coding question of HashMap
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Q1. Again System design, Question from your project and architecture of your project
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