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Impelsys PHP Developer Interview Questions, Process, and Tips

Updated 12 Oct 2021

Impelsys PHP Developer Interview Experiences

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PHP Developer Interview Questions & Answers

user image Anonymous

posted on 12 Oct 2021

I applied via Naukri.com and was interviewed in Sep 2021. There was 1 interview round.

Interview Questionnaire 

6 Questions

  • Q1. What are the different types of errors in PHP?
  • Ans. 

    There are three types of errors in PHP: syntax errors, runtime errors, and logical errors.

    • Syntax errors occur when the code violates the rules of PHP syntax.

    • Runtime errors occur during the execution of the script, such as division by zero or accessing undefined variables.

    • Logical errors do not cause the script to terminate, but they produce incorrect results or unexpected behavior.

  • Answered by AI
  • Q2. What is an autoloader?
  • Ans. 

    An autoloader is a function that automatically loads classes when they are needed in a PHP script.

    • Autoloaders eliminate the need to manually include class files.

    • They use naming conventions to locate and load class files.

    • Autoloaders can be registered using spl_autoload_register() function.

    • Composer provides a default autoloader for PHP projects.

  • Answered by AI
  • Q3. Explain about Abstract Class and PHP Interface?
  • Ans. 

    Abstract classes and interfaces are used to define common methods and properties for classes to implement.

    • Abstract classes cannot be instantiated and can contain both abstract and non-abstract methods.

    • Interfaces only contain method signatures and constants, and classes can implement multiple interfaces.

    • Abstract classes are useful for creating a base class with common functionality, while interfaces are useful for defin...

  • Answered by AI
  • Q4. Design patterns?
  • Q5. Use of .htaccess file?
  • Ans. 

    The .htaccess file is used to configure web server settings for a specific directory.

    • Used to set up redirects and rewrite rules

    • Can restrict access to certain files or directories

    • Can set custom error pages

    • Can enable/disable certain features like caching or compression

  • Answered by AI
  • Q6. What coding standards do you follow?
  • Ans. 

    I follow PSR coding standards and adhere to best practices.

    • I follow PSR-1 and PSR-2 coding standards.

    • I use meaningful variable and function names.

    • I write clean and readable code.

    • I use proper indentation and spacing.

    • I avoid using global variables.

    • I use comments to explain complex code.

    • I adhere to best practices for security and performance.

    • For example, I always use prepared statements to prevent SQL injection attacks.

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - It was a great experience. The interview started with a self-intro and I was asked about the projects I had worked in. Then questions from various sections were asked.

Skills evaluated in this interview

Interview questions from similar companies

I appeared for an interview in Apr 2017.

Interview Questionnaire 

2 Questions

  • Q1. Java questions...
  • Q2. Tell me about urself and about us family and all
  • Ans. 

    I am a software developer with a passion for coding and problem-solving. My family is supportive and has always encouraged my career in tech.

    • Experienced software developer

    • Passionate about coding and problem-solving

    • Supportive family that encourages my career in tech

  • Answered by AI

Interview Preparation Tips

Round: Test
Experience: Easy questions are there
Duration: 1 hour
Total Questions: 90

Round: Group Discussion
Experience: 12 members are there only 9 got selected
Tips: Be confident in urself and specially work in Communication skills
Duration: 15 minutes

Round: Technical Interview
Experience: Asking all the concepts of Java like oops collections threads
Tips: Prepare well on Java

Round: HR Interview
Experience: Everything was Gud but due to my certificate problem I got rejected.. Otherwise everything is good.
Tips: Be confident

College Name: C. V. Raman College of Engineering

I appeared for an interview before Mar 2021.

Round 1 - Face to Face 

(3 Questions)

Round duration - 60 minutes
Round difficulty - Easy

This was an easy round which went really smooth.

  • Q1. 

    Nth Fibonacci Number Problem Statement

    Calculate the Nth term in the Fibonacci sequence, where the sequence is defined as follows: F(n) = F(n-1) + F(n-2), with initial conditions F(1) = F(2) = 1.

    Input:

    ...
  • Ans. 

    Calculate the Nth Fibonacci number efficiently using dynamic programming.

    • Use dynamic programming to store previously calculated Fibonacci numbers to avoid redundant calculations.

    • Start with base cases F(1) and F(2) as 1, then iteratively calculate F(n) using F(n-1) and F(n-2).

    • Ensure the input N is within the constraints 1 <= N <= 10000.

    • Example: For N = 5, the 5th Fibonacci number is 5 (1, 1, 2, 3, 5).

  • Answered by AI
  • Q2. 

    Prime Numbers Problem Statement

    Given a positive integer N, your task is to determine and return all prime numbers less than or equal to N.

    Input:

    N = 10

    Output:

    2 3 5 7

    Example:

    Input:
    N = 20
    Out...
  • Ans. 

    Implement a function to return all prime numbers less than or equal to a given positive integer N.

    • Create a function that takes a positive integer N as input

    • Iterate from 2 to N and check if each number is prime

    • Use a helper function to determine if a number is prime

    • Return an array of all prime numbers less than or equal to N

  • Answered by AI
  • Q3. What is a merge join in SQL?
  • Ans. 

    A merge join in SQL is a method of combining two sorted datasets by matching corresponding rows based on a specified condition.

    • Merge join is used when joining two large datasets that are already sorted.

    • It is more efficient than other join methods like nested loop join or hash join for sorted datasets.

    • The join condition must be an equality condition.

    • Example: SELECT * FROM table1 INNER JOIN table2 ON table1.id = table2.i

  • Answered by AI
Round 2 - HR 

Round duration - 30 minutes
Round difficulty - Easy

The round went excellent. I really enjoyed it. Just be confident about whatever you answer

Interview Preparation Tips

Eligibility criteriaAbove 7 CGPALarsen & Toubro Infotech (LTI) interview preparation:Topics to prepare for the interview - Database, Basic C/C++, Data Structures, Algorithms, System Design, Aptitude, OOPSTime required to prepare for the interview - 3 monthsInterview preparation tips for other job seekers

Tip 1 : Must do Previously asked Interview as well as Online Test Questions.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.

Application resume tips for other job seekers

Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.

Final outcome of the interviewSelected

Skills evaluated in this interview

I appeared for an interview before Mar 2021.

Round 1 - Face to Face 

(2 Questions)

Round duration - 60 minutes
Round difficulty - Easy

This round went well. Interview depends on your basic knowledge of C/C++.

  • Q1. 

    Matrix Multiplication Task

    Given two sparse matrices MAT1 and MAT2 of integers with dimensions 'N' x 'M' and 'M' x 'P' respectively, the goal is to determine the resulting matrix produced by their multipl...

  • Ans. 

    Implement a function to multiply two sparse matrices and return the resulting matrix.

    • Create a function that takes two sparse matrices as input and returns the resulting matrix after multiplication

    • Iterate through the non-zero elements of the matrices to perform the multiplication efficiently

    • Handle the edge cases such as empty matrices or matrices with all zero elements

    • Ensure the dimensions of the matrices are compatible

  • Answered by AI
  • Q2. 

    Problem: Count Even or Odd in Array

    Tanmay and Rohit are best buddies. Tanmay gives Rohit a challenge involving an array of N natural numbers. The task is to perform and answer a series of queries on the ...

  • Ans. 

    Count the number of even or odd numbers in a range of an array based on given queries.

    • Create an array to store the input numbers.

    • Iterate through the queries and update or count even/odd numbers based on the query type.

    • Output the count of even or odd numbers for each query of type 1 or 2.

  • Answered by AI
Round 2 - HR 

Round duration - 30 minutes
Round difficulty - Easy

Typical HR round with behavioral problems.

Interview Preparation Tips

Eligibility criteriaAbove 7 CGPALarsen & Toubro Infotech (LTI) interview preparation:Topics to prepare for the interview - Data Structures, Algorithms, System Design, Aptitude, OOPSTime required to prepare for the interview - 3 monthsInterview preparation tips for other job seekers

Tip 1 : Must do Previously asked Interview as well as Online Test Questions.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.

Application resume tips for other job seekers

Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.

Final outcome of the interviewSelected

Skills evaluated in this interview

I appeared for an interview in Jul 2017.

Interview Questionnaire 

1 Question

  • Q1. Android basics and programs

Interview Preparation Tips

Round: Resume Shortlist
Experience: Resume shortlisted on the basis of 60% through out and experience in development more than 6 months.

Round: Technical Interview
Experience: Core java.. String, oops, exception,

Round: HR Interview
Experience: As usual.. tell me about your self.expectations and salary discussion.
Tips: Be confident whatever you say.

I appeared for an interview in Apr 2017.

Interview Questionnaire 

2 Questions

  • Q1. What is firmware and where it is used?
  • Ans. 

    Firmware is a type of software that is embedded in hardware devices to control their functionality.

    • Firmware is a combination of hardware and software.

    • It is used to control the behavior of hardware devices.

    • Firmware is typically stored in non-volatile memory, such as ROM or flash memory.

    • Examples of devices that use firmware include routers, printers, and digital cameras.

  • Answered by AI
  • Q2. Tell me about yourself only.
  • Ans. 

    I am a passionate software developer with experience in building web applications and solving complex problems.

    • Experienced in programming languages such as Java, JavaScript, and Python

    • Familiar with front-end technologies like HTML, CSS, and React

    • Strong problem-solving skills and ability to work in a team environment

    • Previous projects include developing a customer management system for a small business

  • Answered by AI

Interview Preparation Tips

Round: aptitude
Experience: the test had around 70 questions to be answered in 1 hour
Tips: keep watch on time and be quick enough because each sections has sectional cutoff.

Round: Technical Interview
Experience: the test had around 70 questions to be answered in 1 hour
Tips: keep watch on time and be quick enough because each sections has sectional cutoff.

Round: HR Interview
Experience: they tested my core knowledge and learning skill.
Tips: be strong in your basics.

Skills: Ability To Think Beyond Boundaries
College Name: mnm jec

Skills evaluated in this interview

I applied via Campus Placement

Interview Preparation Tips

Round: Test
Total Questions: 100

Round: Group Discussion
Duration: 15 minutes

Skill Tips: Infosys Internship program is structured very similar to Infosys Foundation Program. In both programs, the course is divided into two parts -
Generic Training and Stream Training. Generic Training will be based on Computer Science' fundamental subjects like OOPs using Java, RDBMS using Oracle, Software Engineering, Internetworking and Operating Systems. Stream specific training will be based on a certain technology like J2EE, DOT NET, Mainframe, SAP etc.

If you're unable to pass the internship program, you can join Infosys as a Systems Engineer trainee after you complete your engineering course and can undergo Infosys Foundation Program. Accommodation is free while going through internship program. You need to pay for food and for other amenities like Gym and Sports facilities.
The monthly stipend during internship program is INR 8000. Advantages for opting internship program is Infosys internship program would help you to undergo the initial training course while joining Infosys. So, if you successfully complete the internship program, you need not to attend the Foundation training in Infosys. So, when you rejoin infosys after completing your b.tech course, you would join as an employee, not as a trainee. It will help you get into production much advanced to other people who go through Foundation Program. After you complete your engineering course Infosys will communicate you with a date to rejoin the organization.
After you complete your internship and get posting location. When you rejoin Infosys, you have to report to that office only. Need not to come to Mysore or Mangalore again for reporting.
Once you join for internship program, you have to sign a bond and if you do not opt to rejoin Infosys then you need to consider the consequences as per the rules written in the bond like paying some amount.
One advantage of successfully clearing internship program is that you need not to go through Foundation program in Infosys. Both have equal weightage in Infosys. Scope of learning is same in both type of training.
Skills: Algorithms And Data Structures
Duration: 3
College Name: Government College of Engineering and Technology, Bikaner

Software Developer Interview Questions & Answers

Infosys user image Sarath Kumar Mutnuru

posted on 5 Apr 2016

I applied via Campus Placement

Interview Preparation Tips

Round: Resume Shortlist
Experience: I added the relevant course work and tried to remove the data that is not related to the position seeked
Tips: Make resume more point oriented rather than bulky matter

Round: Technical Interview
Experience: I was very cool and calm at the time of interview and did a ground work of company income and stuff like that
Tips: Be thorough with the concepts you think they would ask

General Tips: be clam and confident. Everythinng will fall in place and its never too late
Skills: Basics Of Machine Learning
Duration: 2
College Name: IIT Madras
Motivation: varied project fields and well planned program
Funny Moments: The call came ,when I was fully out of hope that Infosys would consider me,But I knew I was eligible and deserving

I appeared for an interview before Aug 2016.

Interview Questionnaire 

3 Questions

  • Q1. Questions from the resume submitted
  • Q2. Write a java program to find the palindrome
  • Q3. HR questions were at the end

Interview Preparation Tips

Round: Test
Experience: Need to solve the general aptitude question, general verbal questions like paragraphs and sentence completion.
Duration: 3 hours
Total Questions: 80

Skills: Programming, Coming Up With Efficient Solutions, Manage A Difficult Situation

Skills evaluated in this interview

I appeared for an interview before Nov 2016.

Interview Questionnaire 

2 Questions

  • Q1. Project related questions and questions from your stream that you had in Btech.
  • Q2. Basic questions about yourself and your aspirations in life.

Interview Preparation Tips

Round: Test
Experience: English, Quant, Reasoning basic MCQ
Tips: English strong and time management
Duration: 1 hour
Total Questions: 100

Round: Technical Interview
Experience: I was from electronics and comm background so was asked about Signals Analog and Digital, Also was asked about my project that i did in my final year and some of the DBMS and C programming questions asked.
Tips: Must know basic about your own stream first of all , what ever you did in 4 years of your engineering must have a idea about it.

Round: HR Interview
Experience: Tell me something about yourself, where do you see yourself after 5 years,
Your likes dislikes .
Tips: Basically they what to check how confident are you in answering the questions and how frequently do you talk to strangers and how do you talk what is your attitude and behavior , so be the best that you can and be what you are.

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Impelsys Interview FAQs

How to prepare for Impelsys PHP Developer interview?
Go through your CV in detail and study all the technologies mentioned in your CV. Prepare at least two technologies or languages in depth if you are appearing for a technical interview at Impelsys. The most common topics and skills that interviewers at Impelsys expect are PHP, MySQL, Angularjs, Bitbucket and Codeigniter.
What are the top questions asked in Impelsys PHP Developer interview?

Some of the top questions asked at the Impelsys PHP Developer interview -

  1. What are the different types of errors in P...read more
  2. What coding standards do you foll...read more
  3. Explain about Abstract Class and PHP Interfa...read more

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