About Persistent Systems .
Company Description
Persistent Systems is a global leader in software product development and technology services, headquartered in Pune, India. Established in 1990, the company specializes in providing innovative solutions in various domains, including cloud computing, IoT, big data, and artificial intelligence. Persistent Systems is recognized for its commitment to quality, customer-centric approach, and a strong emphasis on research and development. The company fosters a collaborative work culture that encourages creativity and innovation, allowing employees to thrive in a dynamic environment. The job environment is characterized by open communication, continuous learning, and opportunities for career advancement, ensuring that employees are engaged and motivated to achieve their professional goals.
Software Engineer Interview Questions
Q1: Can you explain your experience with software development methodologies?
I have experience working with Agile and Scrum methodologies, where I participated in sprint planning, daily stand-ups, and retrospectives. This experience helped me understand the importance of iterative development and stakeholder feedback.
Q2: What programming languages are you proficient in, and which do you prefer for development?
I am proficient in Java, Python, and JavaScript. I prefer using Python for its simplicity and readability, especially in data-driven projects, while I use Java for enterprise-level applications.
Q3: How do you approach debugging an application?
I typically start by reproducing the bug and identifying the error logs. I then use debugging tools and techniques such as breakpoints and step-through debugging to locate the issue. Once identified, I analyze the root cause and implement a fix while ensuring to test thoroughly afterward.
Q4: Describe a challenging project you worked on and how you overcame obstacles.
I worked on a project with tight deadlines and shifting requirements. To manage this, I prioritized tasks using Agile principles, breaking the project into smaller, manageable parts, which allowed for flexibility and regular feedback from stakeholders.
Q5: How do you stay updated with the latest technologies and trends in software development?
I regularly read technical blogs, attend webinars, and participate in online courses. I also engage with developer communities on platforms like GitHub and Stack Overflow to learn from peers and share knowledge.
Data Scientist Interview Questions
Q1: What experience do you have with data analysis and statistical modeling?
I have worked extensively with Python libraries like Pandas and NumPy for data manipulation and analysis, as well as Scikit-learn for building predictive models. I have also applied statistical methods such as regression analysis and hypothesis testing in various projects.
Q2: Can you explain how you would handle missing data in a dataset?
I would first analyze the extent of missing data and determine the best approach based on its nature. Options include removing records, imputing missing values using techniques like mean or median imputation, or predicting missing values using machine learning algorithms.
Q3: Describe a project where you used machine learning techniques.
In a previous project, I developed a machine learning model to predict customer churn. I gathered data from multiple sources, preprocessed it, and used logistic regression for prediction. The model improved retention strategies by identifying at-risk customers.
Q4: How do you ensure the quality and integrity of your data analysis?
I ensure quality by employing thorough data cleaning processes, validating data sources, and using cross-validation techniques for models. I also document my analysis and results to maintain transparency and reproducibility.
Q5: What tools and technologies do you use for data visualization?
I primarily use tools like Tableau and Matplotlib for data visualization. Tableau allows for interactive dashboards, while Matplotlib is useful for creating static graphs and plots in Python.
Project Manager Interview Questions
Q1: Can you describe your experience managing software development projects?
I have managed several software development projects using Agile methodologies, coordinating cross-functional teams, and ensuring timely delivery of project milestones while maintaining quality standards.
Q2: How do you handle project scope changes?
I assess the impact of the change on the project timeline and resources, then communicate with stakeholders to evaluate the necessity of the change. I document the change and adjust the project plan accordingly to ensure alignment.
Q3: What strategies do you use for effective team communication?
I encourage regular meetings, utilize collaboration tools like Slack and Trello, and promote an open-door policy. This ensures that team members feel comfortable sharing updates and challenges, fostering a collaborative environment.
Q4: Describe a time when you had to resolve a conflict within your team.
In a previous project, there was disagreement over the project's direction. I facilitated a meeting where each team member could voice their concerns and suggestions. By encouraging open dialogue, we reached a consensus that aligned with the project goals.
Q5: How do you measure project success?
I measure project success through key performance indicators (KPIs) such as meeting deadlines, staying within budget, stakeholder satisfaction, and the quality of deliverables against the initial project requirements.
Business Analyst Interview Questions
Q1: What methods do you use to gather requirements from stakeholders?
I use techniques like interviews, surveys, and workshops to gather requirements. I also review existing documentation and conduct stakeholder analysis to ensure comprehensive understanding of their needs.
Q2: Can you explain how you prioritize requirements?
I prioritize requirements using a combination of methodologies, such as MoSCoW (Must have, Should have, Could have, Won't have) and cost-benefit analysis. This helps align the project scope with business objectives effectively.
Q3: Describe a challenging analysis you conducted and the impact it had.
I conducted an analysis to identify inefficiencies in a client’s operational processes. By presenting my findings, which included process maps and suggested improvements, the client was able to reduce operational costs by 20%.
Q4: How do you ensure that your analysis aligns with the overall business strategy?
I align my analysis with the business strategy by regularly communicating with stakeholders, understanding their goals, and ensuring that my recommendations support those objectives.
Q5: What tools do you use for data analysis and visualization?
I use tools like Microsoft Excel for data analysis and visualization, as well as Power BI for creating interactive dashboards that present insights clearly to stakeholders.
Persistent Systems . Interview Questions and Answers
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Common Interview Questions in Persistent Systems .
Q: A hare and a tortoise have a race along a circle of 100 yards diameter. The tortoise goes in one directionand the hare in the other. The hare starts after the tortoise has covered 1/5 of its distance and that too leisurely.The hare and tortoise meet when the hare has covered only 1/8 of the distance. By what factor should the hareincrease its speed so as to tie the race?
Q: A rich merchant had collected many gold coins. He did not want anybody to know about them. One day his wife asked, "How many gold coins do we have?" After pausing a moment, he replied, "Well! If I divide the coins into two unequal numbers, then 32 times the difference between the two numbers equals the difference between the squares of the two numbers."The wife looked puzzled. Can you help the merchant's wife by finding out how many gold coins they have?
Q: Suppose a newly-born pair of rabbits, one male, one female, are put in a field. Rabbits are able to mate at the age of one month so that at the end of its second month a female can produce another pair of rabbits. Suppose that our rabbits never die and that the female always produces one new pair (one male, one female) every month from the second month on.
Q: Consider a pile of Diamonds on a table. A thief enters and steals 1/2 of the total quantity and then again 2 extra from the remaining. After some time a second thief enters and steals 1/2 of the remaining+2. Then 3rd thief enters and steals 1/2 of the remaining+2. Then 4th thief enters and steals 1/2 of the remaining+2. When the 5th one enters he finds 1 diamond on the table. Find out the total no. of diamonds originally on the table before the 1st thief entered.
Q: There are 3 clans in an island - The Arcs who never lie, the Dons who always lie and the Slons who lie alternately with the truth. Once a tourist meets 2 guides who stress that the other is a Slon. They proceed on a tour and see a sports meet. The first guide says that the prizes have been won in the order Don, Arc, Slon. The other says that, the order is Slon, Don, Arc. (the order need not be exact). To which clan did each of the guides and the players belong? ...
Q: 36 people {a1, a2, ..., a36} meet and shake hands in a circular fashion. In other words, there are totally 36 handshakes involving the pairs, {a1, a2}, {a2, a3}, ..., {a35, a36}, {a36, a1}. Then size of the smallest set of people such that the res...
Q: T, U, V are 3 friends digging groups in fields. If T & U can complete i groove in 4 days &, U & V can complete 1 groove in 3 days & V & T can complete in 2 days. Find how many days each takes to complete 1 groove individually.
Q: A light bulb is hanging in a room. Outside of the room there are three switches, of which only one is connected to the lamp. In the starting situation, all switches are 'off' and the bulb is not lit. If it is allowed to check in the room only once.How would you know which is the switch?
Q: There are 3 sticks placed at right angles to each other and a sphere is placed between the sticks . Now another sphere is placed in the gap between the sticks and Larger sphere . Find the radius of smaller sphere in terms of radius of larger sphere.
Q: At 6?o a clock ticks 6 times.The time between first and last ticks is 30 seconds.How long does it tick at 12?o clock?2.A hotel has 10 storey. Which floor is above the floor below the floor, below the floor above the floor, below the floor above the fifth.
Q: The egg vendor calls on his first customer and sells half his eggs and half an egg. To the second customer, he sells half of what he had left and half an egg and to the third customer he sells half of what he had then left and half an egg. By the way he did not break any eggs. In the end three eggs were remaining . How many total eggs he was having ?
Q: A long, long time ago, two Egyptian camel drivers were fighting for the hand of the daughter of the sheik of Abbudzjabbu. The sheik, who liked neither of these men to become the future husband of his daughter, came up with a clever plan: a race would dete
Q: There are 7 letters A,B,C,D,E,F,GAll are assigned some numbers from 1,2 to 7.B is in the middle if arranged as per the numbers.A is greater than G same as F is less than C.G comes earlier than E.Which is the fourth letter
Q: Jarius and Kylar are playing the game. If Jarius wins, then he wins twice as many games as Kylar. If Jarius loses, then Kylar wins as the same number of games that Jarius wins. How many do Jarius and Kylar play before this match?
Q: In a Park, N persons stand on the circumference of a circle at distinct points. Each possible pair of persons, not standing next to each other, sings a two-minute song ? one pair immediately after the other. If the total time taken for singing is 28 minutes, what is N?
Q: Give two dice - one is a standard dice, the other is blank (nothing painted on any of the faces). The problem is to paint the blank dice in such a manner so that when you roll both of them together, the sum of both the faces should lie between 1 and 12. Numbers from 1-12 (both inclusive) equally likely.
Q: Raj has a jewel chest containing Rings, Pins and Ear-rings. The chest contains 26 pieces. Raj has 2 and 1/2 times as many rings as pins, and the number of pairs of earrings is 4 less than the number of rings. How many earrings does Raj have?...
Q: Consider a series in which 8 teams are participating. each team plays twice with all other teams. 4 of them will go to the semi final. How many matches should a team win, so that it will ensure that it will go to semi finals.?
Q: Jack and his wife went to a party where four other married couples were present. Every person shook hands with everyone he or she was not acquainted with. When the handshaking was over, Jack asked everyone, including his own wife, how many hands they shook?
Q: A man driving the car at twice the speed of auto one day he was driven car for 10 min. and car is failed. he left the car and took auto to go to the office .he spent 30 min. in the auto. what will be the time take by car to go office?