Greeksoft Technologies 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)?
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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. Asked about my experience as an integration developer
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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
Ans. 
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