Zopsmart Technology Junior Software Engineer Interview Questions and Answers

Round duration - 30 minutes
Round difficulty - Easy

This round mainly consisted of some questions on advanced JS topics like Execution Context, Callback queue, Micro task queue, Promises, etc.

Round duration - 60 minutes
Round difficulty - Medium

This round was more technical compared to the previous one. The interviewer was a senior developer. If questions were not answered, answers would be given/explained.

Q1. What are some aggregate operators in MongoDB?
Ans. 
Aggregate operators in MongoDB are used for data aggregation and manipulation.
• Some aggregate operators in MongoDB include $sum, $avg, $min, $max, $push, $addToSet, $first, $last, $project, $match, $group, $sort, $limit, $skip.

• Example: db.collection.aggregate([{$group: {_id: '$field', total: {$sum: '$value'}}}])
Answered by AI
Add your answer

Round duration - 30 minutes
Round difficulty - Easy

This round was mainly to assess my experience level, roles, and responsibilities from my previous company. Salary negotiations also happened here.

Low level Design Problem in Java

Q1. Data Structures - Graph Problem DFS
Add your answer

System Design with few details

Q1. They asked to design a database table
Add your answer

Divisibility, LCM, HCF.
Numbers, Decimals, Fractions, Powers.
Profit, Loss.
Simple interest and Compound interest.
Speed, Distance, Time.
Work and wages.
Trains, Boats, Streams-upstream/downstream, Circular track questions.
Cistern and pipes.

Coding interviews test candidates' technical knowledge, coding ability, problem solving skills, and creativity, typically on a whiteboard.

Choose a topic based on the assignment.
2 Conduct research.
3 Write a thesis statement

Basic aptitude test

Javascript and react js

Q1. Related to relevant skill set
Add your answer

Q1. Related to past experience
Add your answer

Q1. Questions asked based on spring framework and oops concepts
Add your answer

Q1. Technical questions asked on current project
Add your answer

Q1. Family Background questions
Add your answer

Aptitude Test with 1 coding question and 8 other aptitude questions

Q1. DSA questions with some dbms questions.
Add your answer

Q1. DSA + SQL query writing questions. Do revise SQL before interview.
Add your answer

Aptitude test was of 1 hr

It was about 1 hr duration

Q1. What do you know about oops
Ans. 
Object-oriented programming paradigm focusing on objects and classes
• Encapsulation: Bundling data and methods that operate on the data into a single unit (object)

• Inheritance: Ability of a class to inherit properties and behavior from another class

• Polymorphism: Ability to present the same interface for different data types

• Abstraction: Hiding the complex implementation details and showing only the necessary features
Answered by AI
Add your answer
Q2. Tell me about encapsulation
Ans. 
Encapsulation is the concept of bundling data and methods that operate on the data into a single unit.
• Encapsulation helps in hiding the internal state of an object and restricting access to it.

• It allows for better control over the data by preventing outside interference.

• Encapsulation also promotes code reusability and modularity.

• Example: In object-oriented programming, classes encapsulate data fields and methods to ope
Answered by AI
Add your answer

Q1. How do you manage your team
Add your answer
Q2. Why should I hire you
Add your answer