Wind River Interview Questions, Process, and Tips

Q1. Questions were asked regarding the details mentioned in your CV, specifically about my past work experiences and internships?
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Q2. What is your technical knowledge of Excel and what interests you about it? an also various specific formulas of Excel.
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Q3. What is the worst decision you have made in your life?
Ans. 
The worst decision I have made in my life was dropping out of college without a plan.
• Dropping out of college without a clear career path

• Not seeking guidance or advice before making the decision

• Facing challenges in finding stable employment without a degree
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Q1. Questions were asked regarding my family background, such as your father's profession?
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Q2. Can you describe your past work experience and internships?
Ans. 
I have completed internships in marketing and sales, and have work experience in customer service and project management.
• Interned at a marketing agency where I assisted in creating social media campaigns

• Worked in sales at a retail store, achieving top sales performance in my department

• Customer service experience at a call center, resolving customer complaints and inquiries

• Managed a project for a non-profit organization
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Q3. What are your hobbies and interests was discussed during the interview?
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Q1. Roles and responsibilities
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Q2. Problem based questions
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Q3. Code test & discussions over best practices, best solutions, time and space complexities
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Q1. What data structure is used to implement a priority queue?
Ans. 
Binary heap is used to implement a priority queue.
• Binary heap is a complete binary tree where each node has a value greater than or equal to its children.

• It can be implemented using arrays, where the parent of node at index i is at index (i-1)/2.

• Insertion and deletion operations have time complexity of O(log n) in a binary heap.
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Q2. How many trees will a binary tree have?
Ans. 
A binary tree can have any number of nodes, but the maximum number of trees with n nodes is 2^n.
• A binary tree can have 0 nodes, 1 node, 2 nodes, or any number of nodes.

• The maximum number of binary trees with n nodes is 2^n.

• For example, a binary tree with 3 nodes can have up to 8 different structures.
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Q1. SQL Query to return the second highest marks in a student database
Ans. 
Use a SQL query to find the second highest marks in a student database.
• Use the ORDER BY clause to sort the marks in descending order

• Use the LIMIT clause to limit the result to the second row
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Q2. Program to check if two strings are anagrams
Ans. 
Program to check if two strings are anagrams
• Create a function that takes in two strings as input

• Remove any spaces and convert both strings to lowercase for consistency

• Sort the characters in both strings and compare if they are equal to determine if they are anagrams

• Example: 'listen' and 'silent' are anagrams
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A link was provided for the 15-minute online aptitude test.

90 minutes coding round. There were three problems. One for JavaScript and two for ReactJS

Q1. Mostly ReactJS questions were asked and a few Javascript questions were asked.
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Q1. Again a few react based questions then it was mostly discussion on the past experiences.
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Q1. A general discussion about the notice period, compensation, and information about the company's culture was provided.
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Q1. Fibonacci, swap without 3rd var
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Q2. Non repetitive char in string
Ans. 
Find the first non-repetitive character in a string.
• Iterate through the string and count the occurrences of each character.

• Return the first character with a count of 1.
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Scenario based questions

Core mechanical and aptitude

Q1. Analysis of stress strain diagrams
Ans. 
Stress strain diagrams show the relationship between stress and strain in a material.
• Stress strain diagrams help in understanding the behavior of materials under different loading conditions.

• The slope of the stress strain curve represents the material's stiffness or Young's modulus.

• The area under the stress strain curve represents the material's toughness or energy absorption capacity.

• Different materials exhibit differ...read more
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Q2. Turbine classification
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Q3. Iron carbon phase diagram
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The iron-carbon phase diagram shows the phases and phase transitions of iron and carbon alloys.
• The phase diagram shows the relationship between temperature, composition, and phases present in iron-carbon alloys.

• It consists of regions representing different phases such as austenite, ferrite, cementite, and pearlite.

• The eutectic point on the diagram represents the composition at which the alloy transforms from liquid to ...read more
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Q4. Welding gases classification
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Q5. Types of manufacturing operations
Ans. 
Manufacturing operations include casting, machining, welding, and assembly.
• Casting involves pouring molten metal into a mold to create a specific shape.

• Machining uses tools to remove material from a workpiece to achieve the desired shape.

• Welding joins two or more pieces of metal together using heat and pressure.

• Assembly involves putting together individual components to create a finished product.
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