Eviden Technical Architect Interview Questions and Answers

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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Q1. Describe 5 non functional requirements
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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.
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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
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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
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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. Theoretical questions on dot net and database
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Q1. Design an elaborate user access control system, with granular control from pages, controls, data, and response masking.
Ans. 
Design a user access control system with granular control for pages, controls, data, and response masking.
• Implement role-based access control (RBAC) to assign permissions to users based on their roles.

• Utilize attribute-based access control (ABAC) for more fine-grained control over access to specific pages, controls, and data.

• Implement data masking techniques to ensure sensitive information is not exposed in responses.

• U...read more
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Q2. How would you optimize the sparse array access.
Ans. 
Optimizing sparse array access involves using data structures like hash maps or trees to efficiently store and retrieve values.
• Use a hash map to store only non-null values and their corresponding indices.

• Implement a tree-based data structure like a binary search tree or a trie for faster access to sparse array elements.

• Consider using a compressed sparse row (CSR) format for large sparse arrays to reduce memory usage an...read more
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Q1. Expectations and offer
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Q1. Spring boot, microservice
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Q2. Xml , json different
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Had DSA and aptitude questions

Q1. DSA a questions, Database Questions
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Q1. 5 min question and answers about company
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