iNirvan Interview Questions and Answers

High Availability (HA) on Palo Alto Firewall can be achieved by configuring active-passive or active-active HA pairs.

• Configure two firewalls in an HA pair with one as active and the other as passive for failover

• Ensure synchronized configuration and session information between the firewalls

• Utilize heartbeat monitoring to detect failures and trigger failover

• Test failover scenarios to ensure seamless transition

• Consider using Virtual Wire or Layer 2 deployment for HA setups

Replace lifecycle methods with hooks by using useEffect and useState

• Use useEffect hook to replace componentDidMount, componentDidUpdate, and componentWillUnmount

• Use useState hook to replace state in class components

• Example: Replace componentDidMount with useEffect(() => {}, [])

I chose ETRM domain due to its dynamic nature and the opportunity to work with cutting-edge technology.

• Fascinated by the energy industry and its complexities

• Passionate about working with advanced technology

• Opportunity to work with a diverse group of professionals

• Challenging and dynamic nature of the domain keeps me engaged

• Examples: developing trading strategies, managing risk, optimizing energy portfolios

SP3 architecture refers to a software architecture pattern that emphasizes scalability, performance, and security.

• SP3 stands for Scalable, Performant, and Secure architecture.

• It focuses on designing systems that can handle increasing loads, deliver high performance, and maintain data security.

• SP3 architecture often involves using microservices, cloud computing, and encryption techniques.

• Examples of companies using SP3 architecture include Netflix, Amazon, and Google.

The current project follows a microservices architecture.

• The project is divided into multiple small services that communicate with each other.

• Each service has its own database and can be deployed independently.

• We use Docker and Kubernetes for containerization and orchestration.

• We also have an API gateway that routes requests to the appropriate service.

• We follow RESTful principles for our APIs.