Hero MotoCorp Software Developer Interview Questions and Answers

DSA ,sql, OS,CN, aptitude

Q1. Basic oop questions
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First Round was Aptitude and coding round. It consist 70 question, 30 aptitude question and 40 mcq type coding question

Q1. Find the one repeated number in an array and asked for four approaches
Ans. 
Find the one repeated number in an array using four different approaches.
• Approach 1: Using a hash set to store unique elements and checking for duplicates

• Approach 2: Sorting the array and checking adjacent elements for duplicates

• Approach 3: Using XOR operation to find the repeated number

• Approach 4: Using the sum formula to find the repeated number
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Q2. Simple sql queries
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Q1. Which language you will code
Ans. 
I am proficient in coding in multiple languages including Java, Python, and JavaScript.
• Java

• Python

• JavaScript
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Q2. Dsa topics in java
Ans. 
Data Structures and Algorithms topics commonly used in Java programming.
• Arrays and ArrayLists

• Linked Lists

• Stacks and Queues

• Trees and Graphs

• Sorting and Searching algorithms

• Dynamic Programming

• Hashing and Hashmaps
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Q1. About yourself and introduce
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Q1. Tell me about About yourself
Ans. 
I am a passionate software developer with experience in Java, Python, and web development.
• Experienced in Java, Python, and web development

• Strong problem-solving skills

• Team player with excellent communication skills
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Q2. Describe your projects
Ans. 
I have worked on various projects including web development, mobile app development, and data analysis.
• Developed a web application for a small business to manage inventory and sales

• Created a mobile app for tracking fitness goals and progress

• Performed data analysis on customer feedback to improve user experience
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Q3. How you implement machine learning algorithms in cars
Ans. 
Machine learning algorithms in cars are implemented through sensors, data collection, training models, and real-time decision-making.
• Collecting data from various sensors installed in the car, such as cameras, lidar, radar, and GPS.

• Training machine learning models using the collected data to recognize patterns and make predictions.

• Implementing real-time decision-making algorithms in the car's onboard computer to assist ...read more
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Q1. Brief about yourself ,sql
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Q2. Explain plan,table view and ddl method
Ans. 
Plan, table view, and DDL method are related to database management.
• Plan: Shows the execution plan of a SQL query, including the steps taken by the database to retrieve data.

• Table view: Displays the structure and data of a table in a database.

• DDL method: Stands for Data Definition Language, used to define and modify the structure of database objects.
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C programming, stack, python, computer basics