TSYS|Total System Services Development Leader Interview Questions and Answers

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Q1. Explain microservice pattern,
Ans. 
Microservice pattern is an architectural style where an application is composed of small, independent services that communicate with each other.
• Each service is responsible for a specific task or functionality

• Services communicate with each other through APIs

• Each service can be developed, deployed, and scaled independently

• Allows for greater flexibility, agility, and resilience

• Examples include Netflix, Amazon, and Uber
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Q2. Explain logging implementation in microservice 12 factor details
Ans. 
Logging in microservices follows 12 factor principles.
• Each microservice should log to stdout or stderr

• Logs should be treated as event streams and sent to a centralized log aggregator

• Logs should be structured data in a common format like JSON or syslog

• Logs should include contextual information like request ID, user ID, etc.

• Logs should be stored and rotated automatically

• Logs should be monitored for errors and anomalies
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Q3. Disadvantage of microservice
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