Perfios Software Solutions Interview Questions, Process, and Tips

4 DSA questions and aptitude questions. It was a pen and paper test for nearly 75 to 90 min

Q1. DBMS fundamental questions
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Q2. Variation of repeating DNA sequences LC question.
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Q3. DB Schema and API design of my internship work.
Ans. 
Designed DB schema and API for internship project
• Created normalized database schema to store user information, orders, and products

• Implemented RESTful API endpoints for CRUD operations on user data

• Used authentication and authorization mechanisms to secure API endpoints

• Optimized queries for efficient data retrieval and processing
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Q1. Fundamental OS questions
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Q2. Basic stack questions
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Q1. Strings question. Had to do this in O(1) TC and O(1) SC
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Q2. Extensive discussion on internship experiences
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Q1. How do alarm clock work in phones
Ans. 
Alarm clocks in phones work by triggering a pre-set notification at a specific time to alert the user.
• Alarm clock app is programmed to trigger a notification at a specific time set by the user

• The phone's system clock is used to track the current time and compare it to the set alarm time

• When the alarm time matches the current time, the phone plays the selected alarm sound or vibration

• Users can customize alarm settings s...read more
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Q2. Real life application of DSA
Ans. 
Data Structures and Algorithms are used in real life applications such as social media algorithms, GPS navigation, and search engines.
• Social media algorithms use DSA to personalize user feeds based on their interests and interactions.

• GPS navigation systems use Dijkstra's algorithm to find the shortest route between two locations.

• Search engines like Google use algorithms like PageRank to rank web pages based on relevanc
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Q1. Basic Core Java OOPS AND COLLECTIONS
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Q1. SPring boot and microservices related
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Q1. Questions around the concept of SpringBoot, Hibernate and Java
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More questions around springboot and some managerial questions

Q1. Salary discussions and office policies
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Q1. Trick questions related to banking domain knowledge
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Q1. Domain knowledge and daily work related to BA role
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Q1. Domain knowledge
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Q1. Interviewer asked 3 Leetcode style questions, including two number sum, reverse number without converting to string and anagram. Even though I could answer all, did not get to second round. No clue what th...read more
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Q1. They ask about Balance sheet and Profit and loss account items,
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Q2. You have tell what all items comes under B/S and P&L.
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Q3. Difference between B/S & P&L
Ans. 
B/S (Balance Sheet) shows a company's financial position at a specific point in time, while P&L (Profit and Loss) shows its financial performance over a period of time.
• B/S reports assets, liabilities, and equity at a specific date.

• P&L reports revenues, expenses, and net income over a period.

• B/S helps assess solvency and liquidity.

• P&L helps evaluate profitability and operational efficiency.

• Example: B/S shows cash, inven...read more
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Q4. B/S means financial position of company till date, and P&L means profit for the year..
Ans. 
B/S stands for Balance Sheet, which represents the financial position of a company at a specific point in time. P&L stands for Profit and Loss statement, which shows the financial performance of a company over a specific period.
• Balance Sheet (B/S) provides a snapshot of a company's assets, liabilities, and shareholders' equity at a given date.

• It helps in assessing the financial health, liquidity, and solvency of a comp...read more
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Q1. Tell me about company
Ans. 
The company is a leading financial institution specializing in credit processing.
• Established in 1990

• Provides credit processing services to various industries

• Offers secure and efficient payment solutions

• Has a strong client base including major retailers and e-commerce platforms

• Utilizes advanced technology and analytics to optimize credit processing

• Committed to delivering exceptional customer service
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Q2. Salary discussion
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