Experian Technical Architect Interview Questions and Answers

SOLID is a set of five design principles to make software designs more understandable, flexible, and maintainable.

• S - Single Responsibility Principle: A class should have only one reason to change.

• O - Open/Closed Principle: Objects should be open for extension but closed for modification.

• L - Liskov Substitution Principle: Objects of a superclass should be replaceable with objects of its subclasses without affecting the...read more

CQRS pattern separates read and write operations in an application

• CQRS stands for Command Query Responsibility Segregation

• It separates the read and write operations into two different models

• Commands are used for write operations, while queries are used for read operations

• Helps in scaling and improving performance by optimizing each model separately

Patterns for microservice communication involve synchronous and asynchronous methods to ensure reliable and efficient communication.

• Use synchronous communication for simple interactions between services, such as REST APIs.

• Implement asynchronous communication for more complex interactions, like message queues or event-driven architecture.

• Consider using a combination of both synchronous and asynchronous communication dep...read more

End-to-end activities like NFR validation, gathering, and WLM ensure quality and performance of software.

• NFR validation involves testing non-functional requirements like performance, security, and usability.

• NFR gathering involves identifying and documenting non-functional requirements.

• WLM (Workload Management) involves managing the workload on the system to ensure optimal performance.

• Other end-to-end activities may inc...read more

Analysis is necessary to understand the problem and find the best solution. It involves gathering data, identifying patterns, and making informed decisions.

• Analysis helps to identify the root cause of a problem

• It helps to gather relevant data and information

• It involves identifying patterns and trends

• Analysis helps to make informed decisions and find the best solution

• Examples include market analysis, financial analysis,