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PhonePe Software Testing Engineer Interview Questions and Answers
PhonePe Software Testing Engineer Interview Experiences
1 interview found
(2 Questions)
- Q1. Write a Java Program to reverse a string
- Ans.
Java program to reverse a string
Create a char array from the input string
Use two pointers to swap characters at opposite ends
Continue swapping until the pointers meet in the middle
- Q2. Write a program to find duplicate in given string and print the count of characters
- Ans.
Program to find duplicates in a given string and print the count of characters
Iterate through each character in the string and store the count of each character in a hashmap
Print the characters with count greater than 1 to find duplicates
Handle both uppercase and lowercase characters separately if needed
(2 Questions)
- Q1. API test cases, API workflow
- Q2. Test cases for mobile recharge
- Ans.
Test cases for mobile recharge feature
Verify user can successfully recharge their mobile with valid amount
Verify user receives confirmation message after successful recharge
Verify user cannot recharge with invalid amount
Verify user cannot recharge with insufficient balance
Verify user cannot recharge if network connection is lost
Skills evaluated in this interview
Top trending discussions
Interview questions from similar companies
I appeared for an interview in Nov 2020.
(2 Questions)
Round duration - 60 minutes
Round difficulty - Easy
Started with the introduction.
Then there were two-three coding questions.
Some OS and DBMS concepts were asked.
Questions related to testing were also included.
- Q1.
Reverse the String Problem Statement
You are given a string
STRwhich contains alphabets, numbers, and special characters. Your task is to reverse the string.Example:
Input:
STR = "abcde"
Output:
"e...
- Ans.
Reverse a given string containing alphabets, numbers, and special characters.
Iterate through the characters of the string from end to start and append them to a new string.
Use built-in functions like reverse() or StringBuilder in languages like Python or Java for efficient reversal.
Handle special characters and numbers along with alphabets while reversing the string.
Ensure to consider the constraints on the number of t...
- Q2.
Number and Digits Problem Statement
You are provided with a positive integer
N. Your task is to identify all numbers such that the sum of the number and its digits equalsN.Example:
Input:
N = 21
Out...
- Ans.
Identify numbers whose sum of digits and number equals given integer N.
Iterate through numbers from 1 to N and check if sum of number and its digits equals N.
Use a helper function to calculate sum of digits for a given number.
Return the numbers that satisfy the condition in increasing order, else return -1.
Round duration - 60 minutes
Round difficulty - Medium
This was quite a tough round that can be cleared only by practice and understanding the problem. They asked about the profile first, then questions related to testing, SDLC, and so on. And then, I was asked to write test cases for two to three problems. Writing a test case was a task in this round. The interview was a senior testing engineer and was very friendly and helpful also and answered all my queries related to work.
Interview Preparation Tips
Tip 1 : Practice question from every section (Arrays, String, Data Structures)
Tip 2 : Practice question that required you to write test cases for a problem (as they judge you on your practical implementation)
Tip 3 : Practice low level designing questions (it indirectly helps you to write test cases )
Tip 4 : Choose your favorite Data Structure and practice well on it (as this is the most commonly asked question)
Tip 1 : Have at least three projects in your resume (Include only those which you can explain and demonstrate)
Tip 2 : Include a column of "Position of Responsibility" in addition to your work experience and technicalities (it is impactful as it shows your extra activities apart from your regular curriculum)
I applied via Campus Placement and was interviewed before Jun 2020. There was 1 interview round.
Interview Questionnaire
1 Question
- Q1. Normal coding question medium level , approach focusing rounds actually how you get up to result
Interview Preparation Tips
I applied via Company Website and was interviewed in Jul 2019. There were 3 interview rounds.
Interview Questionnaire
6 Questions
- Q1. What's your role and responsibilities
- Q2. Current processes your organization follows
- Ans.
Our organization follows a combination of manual and automated processes to streamline operations.
We use project management tools like Jira to track tasks and progress
Regular team meetings are held to discuss project updates and address any issues
Automated testing is used to ensure software quality and reduce manual errors
- Q3. How do you contribute to your organization (citizenship activities)
- Q4. What's IRD, IDD and BRD
- Ans.
IRD stands for Interface Requirements Document, IDD stands for Interface Design Document, and BRD stands for Business Requirements Document.
IRD is a document that outlines the requirements for the interface between different systems or components.
IDD is a document that describes the design of the interface, including the data formats, protocols, and communication methods.
BRD is a document that captures the business req...
- Q5. Microsoft Visio usage
- Q6. What are Use case diagrams
- Ans.
Use case diagrams are visual representations of the interactions between users and a system.
They depict the system's functionality from the user's perspective.
They show the different actors and their roles in the system.
They illustrate the various use cases and their relationships.
They help in identifying the requirements of the system.
They aid in communication between stakeholders.
Example: A use case diagram for an on...
Interview Preparation Tips
Software Engineer Interview Questions & Answers
Broadridge Financial Solutions
Anonymous
posted on 11 Oct 2020
I applied via Naukri.com and was interviewed in Sep 2020. There were 5 interview rounds.
Interview Questionnaire
1 Question
- Q1. More about my technical side.
Interview Preparation Tips
I applied via Company Website and was interviewed before Jan 2021. There were 3 interview rounds.
(2 Questions)
- Q1. Pl sql Unix api configuration
- Q2. Routing how to use proxy
- Ans.
Routing through a proxy involves configuring the proxy server to forward requests to the destination server.
Configure the proxy server to listen for incoming requests
Configure the proxy server to forward requests to the destination server
Configure the client to use the proxy server for outgoing requests
Use a proxy server to bypass network restrictions or improve performance
Examples: Nginx, Apache, Squid
Interview Preparation Tips
Skills evaluated in this interview
Interview Preparation Tips
Tips: Have a good grasp of DS algo, java, etc.(Here CGPA doesn't matter)
General Tips: Do’s and Don’ts :
1. Be confident and to be confident prepare well.
2. Set the priority of your companies
3. Don't start preparation at end. Don't ignore the content of resume.
Be confident and start preparation as soon as possible.
College Name: IIT Kanpur
Pranav Bhat Thirthahalli
Interview Questionnaire
14 Questions
- Q1. What is race condition and how can it be eliminated
- Ans.
Race condition is a situation where multiple threads/processes access and manipulate shared data simultaneously.
It can be eliminated by using synchronization techniques like locks, semaphores, and mutexes.
Another way is to use atomic operations that ensure the data is accessed and modified atomically.
Using thread-safe data structures can also prevent race conditions.
Example: Two threads trying to increment a shared var...
- Q2. What is JCube?
- Ans.
JCube is a Java library for creating and manipulating Rubik's Cube puzzles.
JCube provides classes for representing Rubik's Cube puzzles and algorithms for solving them.
It supports various cube sizes and can generate random scrambles.
JCube can be used in Java applications or as a standalone command-line tool.
It is open source and available on GitHub.
- Q3. What is regression testing?
- Ans.
Regression testing is the process of testing changes made to a software application to ensure that existing functionality still works.
It is performed after making changes to the software
It ensures that existing functionality is not affected by the changes
It helps to catch any defects or bugs that may have been introduced
It can be automated using testing tools
Examples include retesting after bug fixes, testing after new...
- Q4. Discussion on different sorting techniques
- Q5. Discussion on SQL and SQL optimisaion
- Q6. Software engineering principles
- Ans.
Software engineering principles are the best practices and guidelines for developing high-quality software.
Software should be designed with modularity and scalability in mind.
Code should be well-documented and easy to read.
Testing and debugging should be an integral part of the development process.
Version control should be used to manage code changes.
Security and privacy should be considered throughout the development ...
- Q7. Java and OOP's question
- Q8. Define Singleton class
- Ans.
A Singleton class is a class that can only have one instance at a time.
It restricts the instantiation of a class to a single object.
It provides a global point of access to that instance.
It is often used in situations where a single object is required to coordinate actions across a system.
Example: Database connection manager, Configuration manager, Logger manager.
- Q9. Explain Testing principles and Design principles
- Ans.
Testing principles ensure software quality, while design principles guide software development.
Testing principles include unit testing, integration testing, and acceptance testing.
Design principles include SOLID, DRY, and KISS.
Testing principles ensure that software meets requirements and is free of defects.
Design principles guide software development to be modular, maintainable, and scalable.
- Q10. Types of machine learning and methods and examples, they may give you a situation and ask you which technique is good and why
- Q11. Why choose you for VISA?
- Ans.
I have the necessary skills, experience, and passion to contribute to VISA's success.
I have a strong background in software development and have worked on projects similar to those at VISA.
I am a quick learner and can adapt to new technologies and programming languages easily.
I am passionate about creating high-quality software that meets the needs of users and exceeds their expectations.
I am a team player and can work...
- Q12. Which profile is good for you?
- Ans.
A profile that challenges me to learn and grow while allowing me to contribute to a team.
A position that encourages continuous learning and development
A role that allows me to collaborate with a team and contribute to projects
A company culture that aligns with my values and work ethic
- Q13. About the work culture at VISA Inc
- Q14. If u already have a placement, why this company
- Ans.
I am interested in exploring new opportunities and challenges that this company can offer.
I am impressed with the company's reputation and growth potential.
I am excited about the projects and technologies this company is working on.
I believe this company can provide me with a better work-life balance and career growth opportunities.
I am looking for a company culture that aligns with my values and goals.
I am open to exp...
Interview Preparation Tips
Experience: Online Test on mettl.com
- 2 coding questions ( 15*2 = 30 marks ) - Moderate level
- 10 MCQs on Programming and Java ( 1*10 = 10)
- 6 MCQs on Machine Learning and Hadoop ( 1*6 = 6 )
- 6 MCQs on Computer Networks ( 1*6 = 6 )
- 6 MCQs on Computer Infrastructure and Architecture ( 1*6 = 6)
- 6 MCQs on Application security and Cryptography ( 1*6 = 6)
15 shortlisted from here including 8 B.Techs and 7 M.Techs for F2F interviews, which were taken by VISA employees from their US and Singapore offices( since they don't have any office at India ).
Round: Technical Interview
Experience: They may give you a situation and ask you to explain which Software engineering principles will you use. They ask you how will you explain the concept of stacks and queues to a 7 year old, or to a granny, so as to encourage programming(like seriously ? )
General Tips: Nothing as such, since this was my second on-campus placement, I had good experience of interviews.
Keep your fundamentals in all computer science subjects open. Unlike other companies they don't focus much on coding alone. The only other company which also looks at perfection in all computer science aspects is Xerox Research Center India.
Challenging and Equally rewarding, but seriously a unique experience with no much tension
Skills:
College Name: NIT Surathkal
Skills evaluated in this interview
Interview Questionnaire
7 Questions
- Q1. Discussion on my internships and course projects.
- Q2. My field of interest, how well have I fared in it.
- Q3. Design a mvc controller system where given a url, I am able to invoke the right controller. Eg, given "xyz.com/a/b/c", I should be able to invoke c controller by going through a and b
- Ans.
Design an MVC controller system to route URLs to the appropriate controllers based on the URL structure.
Define a routing mechanism that maps URLs to controller actions.
Use a hierarchical structure where each segment of the URL corresponds to a controller.
Example: For 'xyz.com/a/b/c', 'a' routes to 'AController', 'b' to 'BController', and 'c' to 'CController'.
Implement a method to parse the URL and invoke the correspond...
- Q4. Design autocomplete in IDEs
- Ans.
Autocomplete in IDEs helps developers write code faster by suggesting code snippets and completing code as they type.
Autocomplete should suggest code snippets based on the context of the code being written
Autocomplete should prioritize suggestions based on frequency of use
Autocomplete should also suggest variable and function names
Autocomplete should be customizable to allow for user-defined snippets and suggestions
Exa...
- Q5. What is my weakness
- Ans.
My weakness is public speaking.
I tend to get nervous when speaking in front of large groups.
I am working on improving my public speaking skills by practicing and seeking feedback.
I have taken courses and attended workshops to help me overcome my fear of public speaking.
- Q6. Given 2 game scenarios for basketball, and given p as the probability of making a basket in an attempt, I have to understand the condition where game1 would be preferable over game2. In first game, I have ...
- Ans.
Comparing 2 basketball game scenarios with different number of trials and baskets required to win
Calculate the probability of winning in each game scenario using binomial distribution formula
Compare the probabilities to determine which game scenario is preferable
In game1, the probability of winning is p. In game2, the probability of winning is the sum of probabilities of making 2 or 3 baskets
If p is high, game1 is pref...
- Q7. Given a dictionary of words, I have to go from one word to another in least number of transitions where a transition is a defined as changing any letter of the current word such that the new word is also i...
Interview Preparation Tips
Experience: The test was on hackerrank.
Tips: * Fast coding and problem solving required
* Time crunch
* The test is valued a LOT in the hiring process
Duration: 120 minutes
Total Questions: 4
Round: Technical Interview
Experience: Question 1 : He tried to take the discussion to web based technologies to which I straightly told I don’t know. Not sure if that was a good decision. Nevertheless, he went over my resume a lot of times and asked about various projects.
Question 2 : Discussed the various projects related to it.
Question 3 : He asked this question because I had worked on django during my FB internship. I proposed a tree based structure. xyz.com/a/b/c ---> b is child of a, c is child of b.
Question 4 : Next he moved to a very interesting question. Given a simple text editor, I want to facilitate autocomplete feature. We discussed about syntactic methods using language specific keywords. I suggested a trie based implementation which he liked. Later he asked me to improve and redirected me to using scope of the variables, and grammar of the language. We discussed about all the steps I did in language translators lab (macrojava -> minijava -> typechecking -> miniIR -> microIR -> miniRA ->Mips) where we built a Java compiler in Java. We later hopped back to original question and I suggested that we can use grammar to to store multiple (nested kind of) tries for different scope. He asked me how would I define “scope”. He gave me a scenario which helped me come up with the nested trie structure
int a;
{
int b;
{
int c; //a b c can be used
}
{
int d; //a b d can be used
}
}
He then asked me details of how I would code. I said we could use the respective visitors and maintain the current trie root for scope. He liked it but I missed at 2 places :
1. He asked me about token generation used in a compiler and I said flex and bison. I was expected to elaborate a bit.
2. He asked me how the grammar is generated and how the visitors are invoked. I couldn’t explain properly because I was not thorough with it.
Tips: * Keep smiling in the interviews.
* My interviewer had hopped from Microsoft to Visa. We had a short detailed discussion on how the transition was and what drove him to do that.
* It’s always good to know about the company to pick up interesting discussions, read up latest articles and news
* The interviewers want to see if you are passionate about what they are building. Their PPT (Pre Placement Talk) was also focussed majorly on the technologies they are building.
* If you take a question in a direction, make sure you are very very thorough with it. I took it in the direction of compilers, but couldn't make the transition seamlessly because I wasn't thorough with a lot of things (like token generation, visitor invocation).
* Not sure if telling upfront that you don't know about web technologies when you are applying for a profile that might need it is a good idea or not.
Round: Technical Interview
Experience: I think he was a senior person and spoke very passionately about the work that is happening in visa Bangalore office.
Question 1 : I said maybe I should have learnt a little about web based technologies. I think he was looking for a more generic answer.
Question 2 : I went ahead with calculating the expected score where my score random variable = 1 with probability p, and 0 with probability (1-p). I conditioned that expected score of game1 > game2 which would give me the range of p. I goofed up the equations twice but he said he liked my approach and I was just there
Question 3 : I suggested building a graph where a node is a word and an edge means a transition, and then performing BFS. He said that was obvious and that he was more interested in knowing how I build the graph. I suggested a method to reduce the number of string comparisons by storing a count vector with each word. Count vector is a 26 length vector where count[i] = number of times that letter occurs in the word. I would do string comparison to identify neighbours only if the difference in count vectors in 2. Eg, cot = cat - a + o. String comparison is still needed because of false positives. Eg, oct = cat - a + o but cat -> oct is not a valid transition. He liked my approach and asked me to code, discussed the complexity.
Tips: * Don't be naive around a senior engineer. Be confident.
* Explain your approach before going ahead solving it. I missed that in Q1 and for a long time he didn't know what I was heading towards.
* Write clean code, practice coding on paper to make sure you write compilable code. Shabby code is a turn off.
* Show passion for the company you are applying for.
General Tips: * Be friendly and keep smiling.
* Know about the company, well in detail. Recent news, articles, acquisitions, organisational changes, new offices, new product, etc.
* Know about the volume the company handles, certain mind boggling figures, what the company *does not* do
* If you are introducing yourself as an expert in a certain field, be prepared for questions like "How will you contribute to our company with your expertise" type of questions.
* Be very very thorough with every single thing you write on your resume. A small point you weren't sure about might become the basis of your whole interview. Don't write things you are unsure of, or have worked very little on.
Skill Tips: * I think I didn’t take Visa very seriously. I was assuming they won’t take a undergrad and they won’t take me because I have 0 knowledge in web based technologies. I might have acted a little cocky.
* They had nice pie diagrams which shows that they had done thorough research about each and every candidate based on resume and the coding test.
* They value the coding test a lot.
* Be very thorough with the projects you write on resume. They will give you a problem which won't be straightforward and will map onto one of your course projects. You are expected to do the mapping seamlessly. Every bit of the discussion you have with the interviewer can be your next problem.
* Brush up on web based technologies if you can.
* There will be a HR round as well if you clear the technical interviews.
Skills: Maths(esp Probability), Design, Passion, Web Technologies, Technical Skill And Speaking Skill, Coding Skills
College Name: IIT Madras
Motivation: * Been the leader since more than half a century, been through the technological revolution.
* Revolutionising payments architecture. Building something of greatest need, so elegant and optimised, yet producing such consistent performance.
* Keeping up with the need of the generation by introducing features which are brand new. Eg, “all-purpose credit card”.
* Loved their PPT (Pre Placement Talk). Volume of the data and processing is IMMENSE. Billions of transactions in a year voluming up to trillions. More than 200 countries in the world --> these stats are HUGE.
* Fraud detection is a space I would have loved to work on given that I come from a Data Mining background.
Funny Moments: Chucked out before HR round :P
Skills evaluated in this interview
Interview Questionnaire
2 Questions
- Q1. Why would you like to join Visa and why?
- Ans.
I want to join Visa to contribute to innovative payment solutions and be part of a global leader in financial technology.
Visa is at the forefront of digital payment innovation, allowing me to work on cutting-edge technologies.
The company's commitment to security aligns with my passion for developing secure software solutions.
Visa's global presence offers opportunities to collaborate with diverse teams and learn from di...
- Q2. Tell me about yourself
- Ans.
I'm a passionate software engineer with a strong background in full-stack development and a love for problem-solving.
Graduated with a degree in Computer Science from XYZ University.
Worked at ABC Corp, where I developed a web application that improved user engagement by 30%.
Proficient in languages like JavaScript, Python, and Java, with experience in frameworks like React and Django.
Enjoy collaborating in agile teams an...
Interview Preparation Tips
Experience: Coding Questions were fairly standard ones.
Duration: 75 minutes
Total Questions: 42
Round: Interview
Experience: Networks based questions, firewalls, TCP/IP and other OSI layers
Round: Interview
Experience: Coding questions. Asked to code on paper. Questions on Object Oriented Design.
Skills: Networks basics, OOPs basics, Coding Skills
College Name: IIT Guwahati
Motivation: Profiles offered, Package, Location
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