Infanion Software Solutions PHP Developer Interview Questions and Answers

Coding Test consists of 3 Problem Question (2 Logical questions and 1 SQL Query ) and Around 20 MCQS
Platform - CoderByte

30 Aptitude Question
3 Mail Writing Question

Q1. Explain 1st Problem Solved in Coding Test. Optimize it.
Ans. 
Solved a sorting problem by implementing quicksort algorithm.
• Implemented quicksort algorithm to efficiently sort the array.

• Used recursion to divide the array into smaller subarrays and sort them individually.

• Optimized the algorithm by choosing a pivot element strategically to minimize comparisons.
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Q2. Explain 2nd Problem Solved in Coding Test. I failed 1 test case in 1st round which was told to solve again.
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Q3. Explain 3rd Question based on SQL Query.
Ans. 
The 3rd question based on SQL query likely refers to a specific query or scenario related to SQL.
• Understand the context of the query being asked about

• Analyze the structure and purpose of the SQL query

• Explain the expected output or result of the query
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Q4. Write a code to Reverse Digits.
Ans. 
Code to reverse digits of a number
• Use modulo operator to extract the last digit of the number

• Multiply the result by 10 and add the next digit until all digits are reversed

• Handle negative numbers separately by converting to positive before reversing
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Q5. A problem question for solving a SQL Query.
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Q1. Tell me about yourself
Ans. 
I am a passionate web developer with 5 years of experience in front-end and back-end development.
• 5 years of experience in web development

• Skilled in front-end and back-end development

• Passionate about creating user-friendly and efficient websites
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Q2. Rate yourself in different technologies
Ans. 
I rate myself highly in HTML, CSS, JavaScript, and React.
• HTML - Proficient in creating semantic and accessible web pages

• CSS - Skilled in styling and layout design, including responsive design

• JavaScript - Strong understanding of core concepts and modern ES6+ features

• React - Experienced in building interactive and dynamic web applications
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Q3. Technical questions
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Implement a web page as per description

Q1. Why do we use database
Ans. 
Databases are used to store, organize, and retrieve data efficiently for various applications.
• Efficient data storage and retrieval

• Data organization and management

• Data security and integrity

• Support for concurrent access and transactions

• Scalability and performance optimization
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Q2. What are SQL joins
Ans. 
SQL joins 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 in a single query

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

• Joins are based on a related column between the tables, such as a primary key and foreign key relationship
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It was so easy. Even this round is conducted by hr they are not suree

This was my final round

Aptitude, Reasoning ,c

Artificial intelligence

Q1. Questions based on javascript, html, css .it will be based on what role you are applying for
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Q2. Css flexbox, box model, html doctype, semantic tags javascript asynchronous , localstorage etc
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Q1. He asked to give self introduction
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There were 3 coding questions in the first round

30 MCQ questions based on Math, reasoning and English and also email writing

Q1. I'm on it my interview scheduled on 14 oct
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