My HashCode Interview Questions and Answers

Q1. Details of Kafka
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Q2. Concurrency questions
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Please check aptitude question in google

Related to Javascript

Q1. Expectations and why do you want to join?
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Discussion related to company

Q1. Can you provide an introduction about yourself?
Ans. 
I'm a passionate software engineer with a strong background in full-stack development and a love for solving complex problems.
• Education: Bachelor's degree in Computer Science from XYZ University.

• Experience: 3 years of experience in developing web applications using React and Node.js.

• Projects: Developed an e-commerce platform that increased sales by 30% within the first quarter.

• Skills: Proficient in JavaScript, Python, ...read more
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Q2. What qualifications have you obtained, and can you explain the project you completed during your engineering studies?
Ans. 
I hold a Bachelor's degree in Computer Engineering and developed a web-based project for managing student records.
• Bachelor's degree in Computer Engineering from XYZ University.

• Completed a capstone project on a web application for student record management.

• Utilized technologies like HTML, CSS, JavaScript, and Node.js.

• Implemented features such as user authentication, data visualization, and a responsive design.

• Collaborat...read more
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Q1. Why do you believe this company is a suitable fit for you?
Ans. 
This company aligns with my values, offers growth opportunities, and fosters innovation, making it an ideal environment for my skills.
• The company's commitment to innovation resonates with my passion for developing cutting-edge software solutions.

• I admire the collaborative culture here, which I experienced during my interactions with the team during the interview process.

• The emphasis on professional development and cont...read more
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Q2. Do you have any questions
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There were few aptitude questions

Q1. Had to install a software
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Q2. Had to write few basic SQL codes
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Q1. Personal questions
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Q2. Behavioural questions
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Got a total of 3 questions with duration of 20- 25 mins for each.

There were 3 q.s given in each sets. For each q.s time limit was 20 min. They were not mcq and kind of tricky.

It also had 3 q.s based on arrays matrix and one logic based. Kinda tough fr me

Q1. Technical skills required. Some questions of programming languages are asked.
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Q2. What are the SQL command groups?
Ans. 
SQL command groups are DDL, DML, DCL, and TCL.
• DDL (Data Definition Language) - used to define database schema and structure

• DML (Data Manipulation Language) - used to manipulate data stored in the database

• DCL (Data Control Language) - used to control access to data stored in the database

• TCL (Transaction Control Language) - used to manage transactions in the database

• Examples: CREATE, ALTER, DROP (DDL); SELECT, INSERT, UP...read more
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Q3. Explain Object Oriented Programming in Python?
Ans. 
Object Oriented Programming is a programming paradigm that uses objects to represent real-world entities.
• Python supports OOP concepts such as encapsulation, inheritance, and polymorphism.

• Classes are used to create objects, which have attributes and methods.

• Inheritance allows for the creation of subclasses that inherit properties and methods from a parent class.

• Polymorphism allows for the use of a single method or funct...read more
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Q4. VLookup, Hlookup, Pivot Table in Excel
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You will be asked to share the screen and write the codes as asked.

Q1. Focus on the Database questions and Your related technologies. Just clear your basics and provide examples based on explanation.
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Q1. Angular pipes, customization in angular
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Q2. CDN, SSR, SSG questions
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Find duplicates in an array