Tokopedia Principal Engineer Interview Questions and Answers

Data Structures and Algorithms questions were asked

Q1. Java Questions were asked
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Q1. By when can u join, hr told me they shared my resume with multiple managers and waiting for it to be shortlisted
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Q1. Acid, SQL vs nosql, react based, asynchronous working of js, event loop, etc. How will u design a matrimony site such that search query will contain multiple preferences - age, height, income, etc (say 100...read more
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Q2. How to implement any one of acid property.
Ans. 
To implement ACID property, use transactions to ensure atomicity, consistency, isolation, and durability of data.
• Use transactions to group related database operations together.

• Ensure that all operations within a transaction are completed successfully or none of them are.

• Maintain consistency by enforcing data integrity constraints.

• Isolate transactions to prevent interference from other transactions.

• Ensure durability by ...read more
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Q1. Js output questions. A recursion based coding problem. (Easy-medium)
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Q2. Was asked to develop an ui but i told the interviewer I'm more into backend so she asked me some backend questions after this. Didn't have to solve the ui task.
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Q3. I answered almost all questions.
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Q1. Basic questions on what you have mentioned in resume , design patterns , reactjs questions , explain your project
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Apti and coding

Q1. Questions on java a d sql
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Q1. Create pagination component using an api show the data for the pages
Ans. 
Create a pagination component using an API to display data for different pages.
• Use API to fetch data for each page

• Implement pagination logic to display data for each page

• Allow users to navigate between pages
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Coding test has multiple choice questions based on basics of programming and 2 coding questions.

Q1. What are the details of Object-Oriented Programming (OOP) concepts?
Ans. 
OOP is a programming paradigm based on the concept of objects, which can contain data and code to manipulate that data.
• OOP focuses on creating objects that interact with each other to solve problems.

• Key concepts include classes, objects, inheritance, polymorphism, and encapsulation.

• Classes are blueprints for creating objects, defining their properties and behaviors.

• Inheritance allows new classes to be based on existing...read more
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Q2. DSA question to solve using any programming language ?
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Q3. Some concepts of web development and binary tree related questions
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Q1. What do you know about Digit insurance?
Ans. 
Digit Insurance is a technology-driven insurance company offering a range of general insurance products.
• Digit Insurance was founded in 2016 by Kamesh Goyal.

• It is known for its innovative and customer-centric approach to insurance.

• Digit offers various insurance products such as health insurance, motor insurance, travel insurance, and more.

• The company leverages technology to simplify the insurance process and provide a s
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Q2. Where do you see yourself after 5 years ?
Ans. 
In 5 years, I see myself as a senior software engineer leading a team of developers on innovative projects.
• Leading a team of developers on projects

• Continuing to learn and grow in my technical skills

• Contributing to the success and growth of the company

• Possibly pursuing further education or certifications

• Exploring opportunities for mentorship and leadership roles
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First round was coding test in online mode which was quite easy.

Q1. In the 2nd round they asked the technical questions from SQL , simple coding questions.
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