TechBulls SoftTech Software Developer Trainee Interview Questions and Answers

Q1. Can you provide details about the projects listed on your resume?
Ans. 
I have worked on various projects including a social media platform, an e-commerce website, and a task management application.
• Developed a social media platform using React for frontend and Node.js for backend

• Designed and implemented an e-commerce website with payment gateway integration

• Created a task management application using Angular and MongoDB for database
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Q2. What are the main concepts of Object-Oriented Programming (OOP)?
Ans. 
Main concepts of OOP include encapsulation, inheritance, polymorphism, and abstraction.
• Encapsulation: Bundling data and methods that operate on the data into a single unit (object).

• Inheritance: Creating new classes based on existing classes, allowing for code reuse.

• Polymorphism: Objects of different classes can be treated as objects of a common superclass.

• Abstraction: Hiding complex implementation details and showing o
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Q1. Normal core java questions
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Q1. Normal java questions
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Q1. Salary expectation
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Q1. Core JavaScript related questions like closure, IIFE, functional scope, DSA, and low level system design
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Q1. Architecture level question, more about project, message queue broker, API security
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Q1. Work location and offer discussion
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Q1. What are joins in sql
Ans. 
Joins in SQL are used to combine rows from two or more tables based on a related column between them.
• Joins are used to retrieve data from multiple tables based on a related column

• Common types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN

• Example: SELECT * FROM table1 INNER JOIN table2 ON table1.column = table2.column
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Q2. Types of arrays in PHP
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Types of arrays in PHP include indexed arrays, associative arrays, and multidimensional arrays.
• Indexed arrays: default type where each element is assigned a numeric index starting from 0.

• Associative arrays: elements are assigned a specific key instead of numeric index.

• Multidimensional arrays: arrays within arrays, creating a matrix-like structure.

• Example: $indexedArray = [1, 2, 3]; $associativeArray = ['key1' => 'value...read more
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Q1. Suggest how to prepare for lektik
Ans. 
Prepare for lektik by studying algorithms, data structures, and practicing coding challenges.
• Study algorithms and data structures thoroughly

• Practice coding challenges on platforms like LeetCode or HackerRank

• Review common interview questions and practice explaining your thought process

• Mock interviews with peers or mentors to simulate the interview experience
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Covers basics aps around 15 question

DSA based questions from leetcode easy and medium

Easy to moderate question

Q1. What is Axios? What is friend function? Given any array find the multiple elements?
Ans. 
Axios is a popular JavaScript library used for making HTTP requests.
• Axios is commonly used in frontend applications to communicate with backend servers.

• It supports promises and can be used in both browser and Node.js environments.

• Example: axios.get('https://api.example.com/data')

• Friend function is a function that is not a member of a class but has access to its private and protected members.

• It is declared with the keyw...read more
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