Persistent Systems Technical Architect Interview Questions and Answers

Q1. Describe 5 non functional requirements
Ans. 
Non functional requirements are criteria that specify how a system should behave, rather than what it should do.
• Performance - system should respond within 2 seconds for all user interactions

• Scalability - system should be able to handle 1000 concurrent users

• Reliability - system should have a 99.99% uptime

• Security - system should encrypt all sensitive data

• Usability - system should have a user-friendly interface
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Q2. How will you improve performance of legacy app which has to work with your latest microservice.
Ans. 
Improve legacy app performance by optimizing code, implementing caching, and scaling resources.
• Optimize code by identifying and removing bottlenecks

• Implement caching to reduce database calls and improve response time

• Scale resources by using containers or serverless architecture

• Use asynchronous processing for long-running tasks

• Upgrade hardware or infrastructure if necessary
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Q1. Explain security in microservices
Ans. 
Security in microservices involves implementing authentication, authorization, encryption, and monitoring to protect data and services.
• Implement authentication and authorization mechanisms to control access to microservices.

• Use encryption to secure communication between microservices and external clients.

• Implement monitoring and logging to detect and respond to security incidents.

• Consider using API gateways for central...read more
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Q2. Describe microservices architecture for a wealth management app
Ans. 
Microservices architecture for a wealth management app involves breaking down the application into smaller, independent services.
• Each microservice focuses on a specific business function, such as client onboarding, portfolio management, or reporting.

• Services communicate through APIs, allowing for flexibility and scalability.

• Each microservice can be developed, deployed, and scaled independently, leading to faster develo...read more
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Q1. Azure solution design case studies
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Q2. Current project walkthrough
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Q3. PySpark coding questions
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Q4. DataModelling question
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Coding test for SQL, was there.

Q1. Most questions are based on system design and current project architecture
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To crack Hexaware interview you need to have good technical knowledge and code writing ability is must.

Q1. Coding test and there was senario based questions , design pattern and architectural questions are also there.
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Q1. Normal questions
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Q1. Interview was with the Sr. Manager. Questions were mostly basic of Azure. There main focus was on Cosmos Db. They want to start a new project on Cosmos so were looking for that knowledge.
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Q2. What role and responsibilities you hadlre. Have you worked on Microservices?
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